Falcon - Wiring in DM I2C Sensors

This guide is to be read in conjunction with the DM Temperature Sensor Datasheet.

Digital Matter manufacture and supply a Temperature/Humidity (Ambient) I2C Sensor, and an I2C Temperature Probe. Check the above data sheet for specifications.

 
Ambient Sensor (Temperature and Humidity Sensor) 

I2C Temperature Probe



Connecting the Sensors

Please note, Wires will need to be inserted through the gland in the housing first, then wired into the PCB.

On the board, you will see a strip of screw terminals, 4 of them are used for the I2C Bus.

  1. GND 
  2. SDA
  3. SCL
  4. 3.3V

The connections for each sensor are as follows:


DM Ambient Sensor DM Temperature Probe

Wiring Table

Wire ColourFunctionPIN on PCB
RedPositive3.3V
BrownClockSCL
GreenDataSDA
BlackGroundGND
Purple-Not used

Note: The wires are inserted into the front hole next to the label. unscrew the clamp section of the screw by rotating counter-clockwise, then insert wire.


When configuring system parameters for the Falcon (or other DM devices), to read from this sensor, ensure readings for "Ambient Sensor" are enabled. 


 Viewing Sensor data in Telematics Guru

Please view the knowledge base article on configuring and viewing sensor data in Telematics guru platform

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