Working with SparkFun Pulsed Coherent Radar Sensor - Acconeer XM125 (Qwiic)

Sensors Distance
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I have been working with the exploration tool by Acconeer for the radar and I like the results. But I had a couple of questions:

Q1.What is the difference between SparkFun Pulsed Coherent Radar Sensor - Acconeer XM125 (Qwiic) and the XE125 by Acconeer(as far as purpose, technical details and capabilities go)?

Q2. Is what I wrote below possible and is my understanding correct of the module and how it would interface with an arudino? (feel free to correct my statements and use the correct terminology where needed)

  • The pre-built code for the human presence detector from the exploration tool(firmware already developed by Acconeer) can be downloaded onto the XM125 which has the Cortex M4.
  • as a result all the radar data processing would be done on the XM125 itself
  • If I have an arduino connected to the spark fun pulse coherent radar sensor, Once say a human is detected the radar will output ‘true’ and simply send that to the arduino where it can make its decisions based on that. So for example, say there is an LED connected to the Arduino and it turns ON whenever a human is detected.

Q3. If I wanted to change the parameters(changing the range) for the presence detector that is downloaded onto the XM125, can I do so? If so how would I do it exactly?

Q4. Will I have more control and ability to change additional parameters than the ones listed in the exploration tool?

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  1. Not much, other than ease-of-use/interfacing features

  2. Yep

  3. Eh, sorta - poke through the examples SparkFun_Qwiic_XM125_Arduino_Library/examples at main · sparkfun/SparkFun_Qwiic_XM125_Arduino_Library · GitHub (most presence detection uses a boolean style function as far as I can tell, but you might be able to edit those examples a bit…or use the distane settings example, and edit its code to output via GPIO (like ex2))

  4. Not without writing custom firmware…but you can use all the functions in here! (maybe not all at once, but alas)