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Xadow - Basic Sensors

Xadow Basic Sensors integrates three different sensors on one single board:

  • 3-Axis Accelerometer for motion detection, activity monitoring and speed tracking
  • Dual diode Digital Light Sensor that can separately measure infrared, full-spectrum or human-visible light
  • Temperature Sensor for temperature monitoring.


  • Three-in-one sensor board
  • Plug-and-play if connected with RePhone Kit Create
  • Open source and modular design
  • Slim and small
  • Built-in 11 PIN Xadow Connectors for fully flexible connection with other Xadow Modules
  • Stackable, chain-able and sew-able with other Xadow Modules.



CoreARM® 32-bit Cortex® -M0 CPU
Power Supply3.3 ~ 6 V (via breakout pins)
Flash16 KB
Clock Speed48 MHz
Operating Temperature Range-30°C to 70°C
InterfacesInterface with Xadow GSM+BLE through I2C (7-bit address 0x03)
Dimension25.37mm × 20.30mm / 1” × 0.8”

3-Axis Accelerometer (ADXL345)

Test g Range±2g (default), ±4g, ±8g, or ±16g
ResolutionIncrease with g range, up to 13-bit resolution at ±16g

Digital Light Sensor (TSL2561) -- Approximates Human Eye Response

Dynamic Range (Lux)0.1 to 40,000 Lux
Dual PhotodiodesInfrared and full spectrum

Temperature Sensor (LM75ADP)

Temperature Range-55°C to 125 °C
Accuracy± 2°C for temperature range from -25°C to 100°C / ± 3°C for temperature range from -55°C to 25°C and from 100 °C to 125°C

Hardware Overview

Use it with RePhone Kit Create

Obtain the Sensor Data

Without any programming, you can connect it to the Core Module (Xadow GSM+BLE) of your ‘RePhone Kit Create' to read all the data from the sensors.

Set 'If This Then That

You can also set the sensor data as a condition to trigger a series of actuators like audio, LED matrix and LED strip, or trigger actions like making a call and sending a message.

RePhone Community

We’ve been looking for a better place where our backers (RePhone Users) can sit together, warmly and comfortably, have conversations about RePhone, discuss technical problems, share ideas/projects, and give feedback on the modules’ development in the future. And then here we go, the RePhone Community.

Now join us in the RePhone Community! Together we seek answers, make interesting stuff, care about each other, and share our experiences.

Frequently Asked Questions

Some frequently asked questions in RePhone Community are collected and answered to the topic "Frequently Asked Questions of RePhone (FAQ)" , the topic will be kept updating whenever a new FAQ comes out.

Schematic Online Viewer


We will be keep updating the source code on our github page:

The schematic diagram of Xadow Basic Sensors is provided in the following link:

Check more info about the datasheet for each sensors:

And the MCU STM32F030F4:

Tech Support & Product Discussion

Thank you for choosing our products! We are here to provide you with different support to ensure that your experience with our products is as smooth as possible. We offer several communication channels to cater to different preferences and needs.

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