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

                                                                                                  449 Product Results Found for "KEYSTONE"

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                                                                                                  Add-on Boards / Modules

                                                                                                  (449)

                                                                                                • Sensors (136)
                                                                                                • Other Add-on Boards/Modules (112)
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                                                                                                  ComparePrice ForQuantity
                                                                                                  83-16991
                                                                                                  SEEED STUDIO 83-16991
                                                                                                  2801858

                                                                                                  Data Sheet

                                                                                                  RoHS

                                                                                                  SEEED STUDIO
                                                                                                  1. Grove Starter Kit for Arduino
                                                                                                  Each
                                                                                                  10+
                                                                                                  HK$430.540
                                                                                                  -
                                                                                                  -
                                                                                                  -
                                                                                                  -
                                                                                                  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$48.470
                                                                                                  -
                                                                                                  -
                                                                                                  -
                                                                                                  -
                                                                                                  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$122.380
                                                                                                  -
                                                                                                  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$146.820
                                                                                                  Wiznet
                                                                                                  -
                                                                                                  -
                                                                                                  -
                                                                                                  SEN0290
                                                                                                  DFROBOT SEN0290
                                                                                                  3769918

                                                                                                  Data Sheet

                                                                                                  RoHS

                                                                                                  DFROBOT
                                                                                                  1. Gravity Lightning Distance Sensor
                                                                                                  2. Arduino UNO/Raspberry Pi 3B Boards
                                                                                                  Each
                                                                                                  1+
                                                                                                  HK$233.240
                                                                                                  -
                                                                                                  Gravity Lightning Distance Sensor
                                                                                                  -
                                                                                                  -
                                                                                                  DFR0300-H
                                                                                                  DFROBOT DFR0300-H
                                                                                                  3769919

                                                                                                  Data Sheet

                                                                                                  RoHS

                                                                                                  DFROBOT
                                                                                                  1. Expansion Board
                                                                                                  2. Gravity Electrical Conductivity Sensor
                                                                                                  3. Arduino and Raspberry Pi Boards
                                                                                                  1 Kit
                                                                                                  1+
                                                                                                  HK$532.690
                                                                                                  -
                                                                                                  -
                                                                                                  -
                                                                                                  -
                                                                                                  DFR0012
                                                                                                  DFROBOT DFR0012
                                                                                                  3769908

                                                                                                  Data Sheet

                                                                                                  RoHS

                                                                                                  DFROBOT
                                                                                                  1. Expansion Board
                                                                                                  2. Gravity Nano I/O Shield
                                                                                                  3. Arduino Nano/DFRduino Nano V3 & V4/Bluno Nano Boards
                                                                                                  Each
                                                                                                  1+
                                                                                                  HK$74.170
                                                                                                  -
                                                                                                  -
                                                                                                  -
                                                                                                  -
                                                                                                  DFR0251
                                                                                                  DFROBOT DFR0251
                                                                                                  3879644

                                                                                                  RoHS

                                                                                                  DFROBOT
                                                                                                  1. Relay Module
                                                                                                  2. Gravity
                                                                                                  3. Digital
                                                                                                  4. 16A
                                                                                                  5. Arduino
                                                                                                  6. Raspberry Pi
                                                                                                  7. ESP32 3.3V / 5V Dev Board
                                                                                                  Each
                                                                                                  1+
                                                                                                  HK$102.400
                                                                                                  -
                                                                                                  Digital 16A Relay Module
                                                                                                  -
                                                                                                  -
                                                                                                  DFR0819
                                                                                                  DFROBOT DFR0819
                                                                                                  3879678

                                                                                                  RoHS

                                                                                                  DFROBOT
                                                                                                  1. Precise RTC Module
                                                                                                  2. Fermion
                                                                                                  3. DS3231
                                                                                                  4. Arduino Board
                                                                                                  Each
                                                                                                  1+
                                                                                                  HK$102.340
                                                                                                  -
                                                                                                  DS3231 Precise RTC Module, Arduino Board
                                                                                                  -
                                                                                                  -
                                                                                                  SEN0405
                                                                                                  DFROBOT SEN0405
                                                                                                  3879715

                                                                                                  Data Sheet

                                                                                                  RoHS

                                                                                                  DFROBOT
                                                                                                  1. Breakout Board
                                                                                                  2. LIS2DW12 Triple Axis Accelerometer
                                                                                                  3. 2 x 4-Pin Header Connectors
                                                                                                  4. Arduino Boards
                                                                                                  Each
                                                                                                  1+
                                                                                                  HK$45.180
                                                                                                  -
                                                                                                  Triple Axis Accelerometer Sensor
                                                                                                  -
                                                                                                  -
                                                                                                  SEN0322
                                                                                                  DFROBOT SEN0322
                                                                                                  3879708

                                                                                                  Data Sheet

                                                                                                  RoHS

                                                                                                  DFROBOT
                                                                                                  1. Electrochemical Oxygen/O2 Sensor
                                                                                                  2. Cable
                                                                                                  3. Post
                                                                                                  4. Screws
                                                                                                  5. DFRduino UNO R3
                                                                                                  6. ESP32
                                                                                                  7. Raspberry Pi Boards
                                                                                                  Each
                                                                                                  1+
                                                                                                  HK$442.650
                                                                                                  -
                                                                                                  I2C Oxygen Sensor Module
                                                                                                  -
                                                                                                  -
                                                                                                  101020049
                                                                                                  SEEED STUDIO 101020049
                                                                                                  4007681

                                                                                                  Data Sheet

                                                                                                  RoHS

                                                                                                  SEEED STUDIO
                                                                                                  1. Flame Sensor
                                                                                                  2. With Cable
                                                                                                  3. 4.75 V to 5.3 V
                                                                                                  4. 1 m
                                                                                                  5. Arduino & Raspberry Pi Board
                                                                                                  Each
                                                                                                  1+
                                                                                                  HK$46.050
                                                                                                  -
                                                                                                  Flame Sensor
                                                                                                  -
                                                                                                  -
                                                                                                  103020133
                                                                                                  SEEED STUDIO 103020133
                                                                                                  4007767

                                                                                                  Data Sheet

                                                                                                  RoHS

                                                                                                  SEEED STUDIO
                                                                                                  1. SPDT Relay Board
                                                                                                  2. SRD-05VDC-SL-C
                                                                                                  3. Arduino and Raspberry Pi Development Boards
                                                                                                  4. w/Grove Cable
                                                                                                  5. Case
                                                                                                  Each
                                                                                                  1+
                                                                                                  HK$133.260
                                                                                                  5+
                                                                                                  HK$122.150
                                                                                                  Ningbo Songle Relay
                                                                                                  4-Channel SPDT Relay Board
                                                                                                  -
                                                                                                  -
                                                                                                  101020752
                                                                                                  SEEED STUDIO 101020752
                                                                                                  4007740

                                                                                                  Data Sheet

                                                                                                  RoHS

                                                                                                  SEEED STUDIO
                                                                                                  1. Turbidity Sensor Board
                                                                                                  2. LMV358
                                                                                                  3. Arduino V1.0 and Raspberry Pi Development Boards
                                                                                                  4. w/Cable
                                                                                                  Each
                                                                                                  1+
                                                                                                  HK$220.960
                                                                                                  Texas Instruments
                                                                                                  Turbidity Sensor Board
                                                                                                  -
                                                                                                  -
                                                                                                  101020594
                                                                                                  SEEED STUDIO 101020594
                                                                                                  4007722

                                                                                                  Data Sheet

                                                                                                  RoHS

                                                                                                  SEEED STUDIO
                                                                                                  1. Thermocouple Amplifier Board
                                                                                                  2. with Cable
                                                                                                  3. I2C
                                                                                                  4. 3.3V / 5V
                                                                                                  5. Arduino Board
                                                                                                  Each
                                                                                                  1+
                                                                                                  HK$166.100
                                                                                                  -
                                                                                                  I2C Thermocouple Amplifier Board
                                                                                                  -
                                                                                                  -
                                                                                                  113020091
                                                                                                  SEEED STUDIO 113020091
                                                                                                  4007875

                                                                                                  Data Sheet

                                                                                                  RoHS

                                                                                                  SEEED STUDIO
                                                                                                  1. Embedded Module
                                                                                                  2. LoRa-E5
                                                                                                  3. with Cable
                                                                                                  4. 3.3V / 5V
                                                                                                  5. ARM Cortex M4
                                                                                                  6. Arduino & Raspberry Pi Board
                                                                                                  Each
                                                                                                  1+
                                                                                                  HK$138.800
                                                                                                  Seeed Studio
                                                                                                  LoRa-E5 Embedded Module
                                                                                                  ARM
                                                                                                  Cortex-M4
                                                                                                  114020164
                                                                                                  SEEED STUDIO 114020164
                                                                                                  4007885

                                                                                                  Data Sheet

                                                                                                  RoHS

                                                                                                  SEEED STUDIO
                                                                                                  1. Female Header
                                                                                                  2. Right Angle
                                                                                                  3. SMD
                                                                                                  4. 4 Pin
                                                                                                  5. 2 mm
                                                                                                  6. 20Pcs
                                                                                                  7. Development Board
                                                                                                  Pack of 20
                                                                                                  1+
                                                                                                  HK$20.900
                                                                                                  -
                                                                                                  4-Pin, 2mm Pitch, 90D, SMD Female Header
                                                                                                  -
                                                                                                  -
                                                                                                  101020027
                                                                                                  SEEED STUDIO 101020027
                                                                                                  4007663

                                                                                                  Data Sheet

                                                                                                  RoHS

                                                                                                  SEEED STUDIO
                                                                                                  1. Electricity Sensor Board
                                                                                                  2. TA12-200
                                                                                                  3. Arduino and Raspberry Pi Development Boards
                                                                                                  4. w/Cable
                                                                                                  Each
                                                                                                  1+
                                                                                                  HK$80.860
                                                                                                  -
                                                                                                  Electricity Sensor Module
                                                                                                  -
                                                                                                  -
                                                                                                  103030000
                                                                                                  SEEED STUDIO 103030000
                                                                                                  3932129

                                                                                                  Data Sheet

                                                                                                  RoHS

                                                                                                  SEEED STUDIO
                                                                                                  1. Base Shield
                                                                                                  2. Grove
                                                                                                  3. Arduino Development Board
                                                                                                  Each
                                                                                                  1+
                                                                                                  HK$39.170
                                                                                                  -
                                                                                                  -
                                                                                                  -
                                                                                                  -
                                                                                                  103030215
                                                                                                  SEEED STUDIO 103030215
                                                                                                  3932093

                                                                                                  Data Sheet

                                                                                                  RoHS

                                                                                                  SEEED STUDIO
                                                                                                  1. CAN-BUS Shield Board
                                                                                                  2. MCP2515
                                                                                                  3. MCP2551
                                                                                                  4. Controller and Transceiver
                                                                                                  5. Arduino Board
                                                                                                  Each
                                                                                                  1+
                                                                                                  HK$221.750
                                                                                                  Microchip
                                                                                                  -
                                                                                                  -
                                                                                                  -
                                                                                                  105020010
                                                                                                  SEEED STUDIO 105020010
                                                                                                  4007824

                                                                                                  Data Sheet

                                                                                                  RoHS

                                                                                                  SEEED STUDIO
                                                                                                  1. Motor Driver Board
                                                                                                  2. Mini
                                                                                                  3. I2C
                                                                                                  4. 2.75V to 6.8V
                                                                                                  5. Arduino Board
                                                                                                  Each
                                                                                                  1+
                                                                                                  HK$143.450
                                                                                                  -
                                                                                                  Mini I2C Motor Driver Board
                                                                                                  -
                                                                                                  -
                                                                                                  101020952
                                                                                                  SEEED STUDIO 101020952
                                                                                                  4007751

                                                                                                  Data Sheet

                                                                                                  RoHS

                                                                                                  SEEED STUDIO
                                                                                                  1. Sensor Module
                                                                                                  2. CO2
                                                                                                  3. Temperature & Humidity
                                                                                                  4. Arduino & Raspberry Pi Board
                                                                                                  Each
                                                                                                  1+
                                                                                                  HK$434.440
                                                                                                  -
                                                                                                  CO2 and Temperature/Humidity Sensor Module
                                                                                                  -
                                                                                                  -
                                                                                                  DRI0041
                                                                                                  DFROBOT DRI0041
                                                                                                  3974097

                                                                                                  Data Sheet

                                                                                                  RoHS

                                                                                                  DFROBOT
                                                                                                  1. DC Motor Driver
                                                                                                  2. 7 V to 24 V
                                                                                                  3. Arduino UNO R3 Board
                                                                                                  Each
                                                                                                  1+
                                                                                                  HK$172.470
                                                                                                  -
                                                                                                  -
                                                                                                  -
                                                                                                  -
                                                                                                  101020055
                                                                                                  SEEED STUDIO 101020055
                                                                                                  4007684

                                                                                                  Data Sheet

                                                                                                  RoHS

                                                                                                  SEEED STUDIO
                                                                                                  1. Gas Sensor Module
                                                                                                  2. Combustible Gas
                                                                                                  3. Smoke
                                                                                                  4. 4.9V to 5.1V
                                                                                                  5. Arduino/Raspberry Pi /ArduPy Board
                                                                                                  Each
                                                                                                  1+
                                                                                                  HK$83.290
                                                                                                  -
                                                                                                  Gas Sensor Module
                                                                                                  -
                                                                                                  -
                                                                                                  102010448
                                                                                                  SEEED STUDIO 102010448
                                                                                                  4060351

                                                                                                  Data Sheet

                                                                                                  RoHS

                                                                                                  SEEED STUDIO
                                                                                                  1. SBC
                                                                                                  2. XIAO nRF52840
                                                                                                  3. ARM Cortex-M4
                                                                                                  4. 256kB RAM
                                                                                                  5. 2MB Flash
                                                                                                  6. Bluetooth
                                                                                                  7. USB-C
                                                                                                  Each
                                                                                                  1+
                                                                                                  HK$81.310
                                                                                                  Nordic Semiconductor
                                                                                                  -
                                                                                                  ARM
                                                                                                  Cortex-M4F
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                                                                                                  e絡盟 is a trading name of eluomeng Limited.
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