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                                                                                                  1. Home
                                                                                                  2. Single Board Computers, Maker & Education
                                                                                                  3. Add-on Boards / Modules

                                                                                                  Add-on Boards / Modules:

                                                                                                  736 Products Found
                                                                                                  Find a huge range of Add-on Boards / Modules at e絡盟 Hong Kong, including Sensors, Other Add-on Boards/Modules, Screens & Displays, Carriers & Expansion, Embedded Power. We stock a wide range of Add-on Boards / Modules from the world's top manufacturers including: Dfrobot, Seeed Studio, Kitronik, Arduino & Infineon
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                                                                                                  Add-on Boards / Modules

                                                                                                  (736)

                                                                                                • Audio / Visual (20)
                                                                                                • Carriers & Expansion (48)
                                                                                                • Communications (28)
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                                                                                                • Other Add-on Boards/Modules (160)
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                                                                                                • Sensors (290)
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                                                                                                  ComparePrice ForQuantity
                                                                                                  DFR0489
                                                                                                  DFROBOT DFR0489
                                                                                                  3517885

                                                                                                  Data Sheet

                                                                                                  RoHS

                                                                                                  DFROBOT
                                                                                                  1. IoT Microcontroller Board
                                                                                                  2. FireBeetle
                                                                                                  3. ESP8266
                                                                                                  4. Arduino Development Boards
                                                                                                  Each
                                                                                                  1+
                                                                                                  HK$63.65
                                                                                                  Total:HK$63.65
                                                                                                  Min: 1 / Mult: 1
                                                                                                  DFRobot
                                                                                                  -
                                                                                                  -
                                                                                                  -
                                                                                                  SEN0211
                                                                                                  DFROBOT SEN0211
                                                                                                  3517919

                                                                                                  Data Sheet

                                                                                                  RoHS

                                                                                                  DFROBOT
                                                                                                  1. Analog AC Current Sensor
                                                                                                  2. Probe
                                                                                                  3. Cable
                                                                                                  4. 20A
                                                                                                  5. Arduino Development Boards
                                                                                                  Each
                                                                                                  1+
                                                                                                  HK$162.34
                                                                                                  Total:HK$162.34
                                                                                                  Min: 1 / Mult: 1
                                                                                                  -
                                                                                                  ANALOGUE AC Current Sensor (20A)
                                                                                                  -
                                                                                                  -
                                                                                                  SEN0249
                                                                                                  DFROBOT SEN0249
                                                                                                  3517936

                                                                                                  Data Sheet

                                                                                                  RoHS

                                                                                                  DFROBOT
                                                                                                  1. Analog Spear Tip pH Sensor / Meter Kit
                                                                                                  2. Arduino Development Boards
                                                                                                  Each
                                                                                                  1+
                                                                                                  HK$840.16
                                                                                                  Total:HK$840.16
                                                                                                  Min: 1 / Mult: 1
                                                                                                  -
                                                                                                  ANALOGUE Spear Tip pH Sensor / Meter Kit
                                                                                                  -
                                                                                                  -
                                                                                                  SEN0224
                                                                                                  DFROBOT SEN0224
                                                                                                  3517924

                                                                                                  Data Sheet

                                                                                                  RoHS

                                                                                                  DFROBOT
                                                                                                  1. Accelerometer
                                                                                                  2. I2C
                                                                                                  3. Triple Axis
                                                                                                  4. LIS2DH for Arduino Development Boards
                                                                                                  Each
                                                                                                  1+
                                                                                                  HK$41.59
                                                                                                  Total:HK$41.59
                                                                                                  Min: 1 / Mult: 1
                                                                                                  -
                                                                                                  I2C Triple Axis Accelerometer - LIS2DH
                                                                                                  -
                                                                                                  -
                                                                                                  SEN0137
                                                                                                  DFROBOT SEN0137
                                                                                                  3517874

                                                                                                  Data Sheet

                                                                                                  RoHS

                                                                                                  DFROBOT
                                                                                                  1. Add-On Board
                                                                                                  2. DHT22 Temperature & Humidity Sensor
                                                                                                  3. Analog Sensor Cable
                                                                                                  4. DFRduino UNO R3 Boards
                                                                                                  Each
                                                                                                  1+
                                                                                                  HK$72.61
                                                                                                  Total:HK$72.61
                                                                                                  Min: 1 / Mult: 1
                                                                                                  -
                                                                                                  DHT22 Temperature & Humidity Sensor
                                                                                                  -
                                                                                                  -
                                                                                                  SEN0132
                                                                                                  DFROBOT SEN0132
                                                                                                  3517903

                                                                                                  Data Sheet

                                                                                                  RoHS

                                                                                                  DFROBOT
                                                                                                  1. Analog Carbon Monoxide Sensor
                                                                                                  2. MQ7
                                                                                                  3. Arduino Development Boards
                                                                                                  Each
                                                                                                  1+
                                                                                                  HK$83.60
                                                                                                  Total:HK$83.60
                                                                                                  Min: 1 / Mult: 1
                                                                                                  -
                                                                                                  ANALOGUE Carbon Monoxide Sensor (MQ7)
                                                                                                  -
                                                                                                  -
                                                                                                  ROB0150
                                                                                                  DFROBOT ROB0150
                                                                                                  3517959

                                                                                                  Data Sheet

                                                                                                  RoHS

                                                                                                  DFROBOT
                                                                                                  1. Micro Circular RGB LED Expansion Board
                                                                                                  2. WS2812
                                                                                                  3. For BBC micro:bit Boards
                                                                                                  Each
                                                                                                  1+
                                                                                                  HK$97.60
                                                                                                  Total:HK$97.60
                                                                                                  Min: 1 / Mult: 1
                                                                                                  DFRobot
                                                                                                  -
                                                                                                  -
                                                                                                  -
                                                                                                  SEN0262
                                                                                                  DFROBOT SEN0262
                                                                                                  3517951

                                                                                                  Data Sheet

                                                                                                  RoHS

                                                                                                  DFROBOT
                                                                                                  1. Analog Current to Voltage Converter
                                                                                                  2. Digital Sensor 3-Pin Cable
                                                                                                  3. DFRduino UNO R3 Boards
                                                                                                  Each
                                                                                                  1+
                                                                                                  HK$41.59
                                                                                                  Total:HK$41.59
                                                                                                  Min: 1 / Mult: 1
                                                                                                  -
                                                                                                  Gravity Analogue Current to Voltage Converter
                                                                                                  -
                                                                                                  -
                                                                                                  ROB0163-EN
                                                                                                  DFROBOT ROB0163-EN
                                                                                                  3517955

                                                                                                  Data Sheet

                                                                                                  RoHS

                                                                                                  DFROBOT
                                                                                                  1. Mechanical Kit
                                                                                                  2. For BBC Micro:bit Boards
                                                                                                  Each
                                                                                                  1+
                                                                                                  HK$330.38
                                                                                                  Total:HK$330.38
                                                                                                  Min: 1 / Mult: 1
                                                                                                  -
                                                                                                  Mechanical Kit
                                                                                                  -
                                                                                                  -
                                                                                                  SEN0227
                                                                                                  DFROBOT SEN0227
                                                                                                  3517932

                                                                                                  Data Sheet

                                                                                                  RoHS

                                                                                                  DFROBOT
                                                                                                  1. Temperature & Humidity Sensor
                                                                                                  2. SHT20 I2C
                                                                                                  3. For Arduino Development Boards
                                                                                                  Each
                                                                                                  1+
                                                                                                  HK$190.95
                                                                                                  Total:HK$190.95
                                                                                                  Min: 1 / Mult: 1
                                                                                                  -
                                                                                                  SHT20 I2C Temperature & Humidity Sensor
                                                                                                  -
                                                                                                  -
                                                                                                  SEN0169
                                                                                                  DFROBOT SEN0169
                                                                                                  3517876

                                                                                                  Data Sheet

                                                                                                  RoHS

                                                                                                  DFROBOT
                                                                                                  1. pH Sensor Circuit Board
                                                                                                  2. Industry pH Electrode
                                                                                                  3. Analog Cable
                                                                                                  4. Arduino Boards
                                                                                                  Each
                                                                                                  1+
                                                                                                  HK$482.89
                                                                                                  Total:HK$482.89
                                                                                                  Min: 1 / Mult: 1
                                                                                                  -
                                                                                                  ANALOGUE pH Sensor / Meter Kit
                                                                                                  -
                                                                                                  -
                                                                                                  SEN0240
                                                                                                  DFROBOT SEN0240
                                                                                                  3517884

                                                                                                  Data Sheet

                                                                                                  RoHS

                                                                                                  DFROBOT
                                                                                                  1. EMG Dry Electrode Board
                                                                                                  2. EMG Signal Transmitter Board
                                                                                                  3. Wrist Belt
                                                                                                  4. Cable
                                                                                                  5. DFRduino UNO R3 Boards
                                                                                                  Each
                                                                                                  1+
                                                                                                  HK$403.79
                                                                                                  Total:HK$403.79
                                                                                                  Min: 1 / Mult: 1
                                                                                                  -
                                                                                                  ANALOGUE EMG Sensor
                                                                                                  -
                                                                                                  -
                                                                                                  TPX00031
                                                                                                  ARDUINO TPX00031
                                                                                                  3677422

                                                                                                  Data Sheet

                                                                                                  RoHS

                                                                                                  ARDUINO
                                                                                                  1. Sensor Kit
                                                                                                  2. Arduino Development Boards
                                                                                                  3. w/Base Shield
                                                                                                  4. Grove Modules
                                                                                                  5. Grove Cables
                                                                                                  Each
                                                                                                  1+
                                                                                                  HK$284.45
                                                                                                  Total:HK$284.45
                                                                                                  Min: 1 / Mult: 1
                                                                                                  -
                                                                                                  -
                                                                                                  -
                                                                                                  -
                                                                                                  DFR0299
                                                                                                  DFROBOT DFR0299
                                                                                                  3517866

                                                                                                  Data Sheet

                                                                                                  RoHS

                                                                                                  DFROBOT
                                                                                                  1. DFPlayer Module
                                                                                                  2. Mini MP3 Player
                                                                                                  3. Arduino Development Boards
                                                                                                  4. MP3/WAV/WMA
                                                                                                  5. UART
                                                                                                  6. 3.3V/5V
                                                                                                  Each
                                                                                                  1+
                                                                                                  HK$48.14
                                                                                                  Total:HK$48.14
                                                                                                  Min: 1 / Mult: 1
                                                                                                  -
                                                                                                  -
                                                                                                  -
                                                                                                  -
                                                                                                  SEN0232
                                                                                                  DFROBOT SEN0232
                                                                                                  3517935

                                                                                                  Data Sheet

                                                                                                  RoHS

                                                                                                  DFROBOT
                                                                                                  1. Analog Sound Level Meter
                                                                                                  2. 3-Pin Gravity Analog Cable
                                                                                                  3. DFRduino UNO R3 Boards
                                                                                                  Each
                                                                                                  1+
                                                                                                  HK$322.22
                                                                                                  Total:HK$322.22
                                                                                                  Min: 1 / Mult: 1
                                                                                                  -
                                                                                                  ANALOGUE Sound Level Meter Kit
                                                                                                  -
                                                                                                  -
                                                                                                  SEN0127
                                                                                                  DFROBOT SEN0127
                                                                                                  3517893

                                                                                                  Data Sheet

                                                                                                  RoHS

                                                                                                  DFROBOT
                                                                                                  1. Analog Gas Sensor
                                                                                                  2. MQ2
                                                                                                  3. Arduino Development Boards
                                                                                                  Each
                                                                                                  1+
                                                                                                  HK$58.57
                                                                                                  Total:HK$58.57
                                                                                                  Min: 1 / Mult: 1
                                                                                                  -
                                                                                                  ANALOGUE Gas Sensor (MQ2)
                                                                                                  -
                                                                                                  -
                                                                                                  SEN0217
                                                                                                  DFROBOT SEN0217
                                                                                                  3517923

                                                                                                  Data Sheet

                                                                                                  RoHS

                                                                                                  DFROBOT
                                                                                                  1. Water Flow Sensor
                                                                                                  2. 0.5"
                                                                                                  3. Arduino Development Boards
                                                                                                  Each
                                                                                                  1+
                                                                                                  HK$76.30
                                                                                                  Total:HK$76.30
                                                                                                  Min: 1 / Mult: 1
                                                                                                  -
                                                                                                  0.5" Water Flow Sensor
                                                                                                  -
                                                                                                  -
                                                                                                  SEN0133
                                                                                                  DFROBOT SEN0133
                                                                                                  3517897

                                                                                                  Data Sheet

                                                                                                  RoHS

                                                                                                  DFROBOT
                                                                                                  1. Analog Hydrogen Gas Sensor
                                                                                                  2. MQ8
                                                                                                  3. Arduino Development Boards
                                                                                                  Each
                                                                                                  1+
                                                                                                  HK$89.54
                                                                                                  Total:HK$89.54
                                                                                                  Min: 1 / Mult: 1
                                                                                                  -
                                                                                                  ANALOGUE Hydrogen Gas Sensor (MQ8)
                                                                                                  -
                                                                                                  -
                                                                                                  SEN0263
                                                                                                  DFROBOT SEN0263
                                                                                                  3517943

                                                                                                  Data Sheet

                                                                                                  RoHS

                                                                                                  DFROBOT
                                                                                                  1. Gravity I2C Non-contact IR Temperature Sensor
                                                                                                  2. for Arduino Board
                                                                                                  Each
                                                                                                  1+
                                                                                                  HK$509.19
                                                                                                  Total:HK$509.19
                                                                                                  Min: 1 / Mult: 1
                                                                                                  -
                                                                                                  Gravity I2C Non-contact IR Temperature Sensor
                                                                                                  -
                                                                                                  -
                                                                                                  DFR0819
                                                                                                  DFROBOT DFR0819
                                                                                                  3879678

                                                                                                  RoHS

                                                                                                  DFROBOT
                                                                                                  1. Precise RTC Module
                                                                                                  2. Fermion
                                                                                                  3. DS3231
                                                                                                  4. Arduino Board
                                                                                                  Each
                                                                                                  1+
                                                                                                  HK$75.54
                                                                                                  Total:HK$75.54
                                                                                                  Min: 1 / Mult: 1
                                                                                                  -
                                                                                                  DS3231 Precise RTC Module, Arduino Board
                                                                                                  -
                                                                                                  -
                                                                                                  DFR0649
                                                                                                  DFROBOT DFR0649
                                                                                                  3769988

                                                                                                  Data Sheet

                                                                                                  RoHS

                                                                                                  DFROBOT
                                                                                                  1. Expansion Board
                                                                                                  2. 1.54" 240x240 IPS TFT LCD Display
                                                                                                  3. ST7789
                                                                                                  4. UNO R3/Leonardo/FireBeetle M0 Boards
                                                                                                  Each
                                                                                                  1+
                                                                                                  HK$134.94
                                                                                                  Total:HK$134.94
                                                                                                  Min: 1 / Mult: 1
                                                                                                  Adafruit
                                                                                                  -
                                                                                                  -
                                                                                                  -
                                                                                                  DFR0060
                                                                                                  DFROBOT DFR0060
                                                                                                  3769974

                                                                                                  Data Sheet

                                                                                                  RoHS

                                                                                                  DFROBOT
                                                                                                  1. Expansion Board
                                                                                                  2. 2x Screw Shield
                                                                                                  3. Arduino Development Board
                                                                                                  Each
                                                                                                  1+
                                                                                                  HK$63.65
                                                                                                  Total:HK$63.65
                                                                                                  Min: 1 / Mult: 1
                                                                                                  -
                                                                                                  -
                                                                                                  -
                                                                                                  -
                                                                                                  KIT0152-EN
                                                                                                  DFROBOT KIT0152-EN
                                                                                                  3879702

                                                                                                  RoHS

                                                                                                  DFROBOT
                                                                                                  1. Mindplus Coding Kit
                                                                                                  2. Arduino Board
                                                                                                  Each
                                                                                                  1+
                                                                                                  HK$840.16
                                                                                                  Total:HK$840.16
                                                                                                  Min: 1 / Mult: 1
                                                                                                  -
                                                                                                  -
                                                                                                  -
                                                                                                  -
                                                                                                  SEN0308
                                                                                                  DFROBOT SEN0308
                                                                                                  3769915

                                                                                                  Data Sheet

                                                                                                  RoHS

                                                                                                  DFROBOT
                                                                                                  1. Soil Moisture Sensor
                                                                                                  2. Analog
                                                                                                  3. Waterproof
                                                                                                  4. Capacitive
                                                                                                  5. Arduino
                                                                                                  6. ESP32
                                                                                                  7. micro:bit
                                                                                                  8. RPi Board
                                                                                                  Each
                                                                                                  1+
                                                                                                  HK$121.55
                                                                                                  Total:HK$121.55
                                                                                                  Min: 1 / Mult: 1
                                                                                                  -
                                                                                                  Gravity Analogue Waterproof Capacitive Soil Moisture Sensor
                                                                                                  -
                                                                                                  -
                                                                                                  DFR0125
                                                                                                  DFROBOT DFR0125
                                                                                                  3769931

                                                                                                  Data Sheet

                                                                                                  RoHS

                                                                                                  DFROBOT
                                                                                                  1. Expansion Board
                                                                                                  2. DFRduino Ethernet Shield V2
                                                                                                  3. Arduino Mega 1280 & 2560/Arduino UNO/Dumlinove Boards
                                                                                                  Each
                                                                                                  1+
                                                                                                  HK$131.54
                                                                                                  Total:HK$131.54
                                                                                                  Min: 1 / Mult: 1
                                                                                                  Wiznet
                                                                                                  -
                                                                                                  -
                                                                                                  -
                                                                                                  ComparePrice ForQuantity
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                                                                                                  An Avnet Company© 2026 Premier Farnell Limited. All Rights Reserved.
                                                                                                  e絡盟 is a trading name of eluomeng Limited.
                                                                                                  Registered number: 559890 | Registered office: 21st Floor, Tower 2, Enterprise Square Five, 38 Wang Chiu Road, Kowloon Bay, Kowloon, Hong Kong.