Good Day,
Based on the image, this appears to be a 1-Wire temperature sensor.
The wiring should be connected as follows:
Pin 11 – 1-Wire Data → 1-Wire data wire of the sensor
Pin 1 – VCC → 1-Wire power wire of the sensor
Pin 7 – GND → 1-Wire ground wire of the sensor
Please ensure that the sensor wires are matched correctly with the device pinout before powering the device.
Thanks, and best regards,
Imran S.
Thanks for the answer, but I already knew this since I used the FMA120 trackers before the FMC125 (the satellite navigation on these stopped working and I was unable to upgrade the FMA120).
I have since understood (see connection diagram) that the red and black wires must be connected to the ground together. Power and it is now working with a sensor with a 1-meter cable.
But now it is not possible to connect multiple 1-wire temperature sensors; see the answer below.
I should have bought the FMC130.
I studied the documentation in more detail and consulted with a colleague.
There may be issues connecting more than one temperature sensor with a parasitic power supply, as noted on our wiki page. If you’re using genuine Dallas temperature sensors, there shouldn’t be any issues, as long as the cable is up to 3 meters. However, if you’re using cheap sensors, there may be problems (image attached).
I am very disappointed; I already had to buy 10 new trackers, and now it turns out to be the wrong one, even though I couldn’t read this from the documentation sheet. Moreover, I need cables of 8 to 10 meters to make the connection, which was not a problem with the FMA120.
I translated this text from Dutch using Google.
