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IWR6843ISK-ODS: Develop safety alarm function based on the Area Scanner demo

Part Number: IWR6843ISK-ODS

I am trying to develop  a safety guard function to detect incoming humans (when someone is close enough within a certain threshold to the sensor, it will issue an alarm)

I found the Area Scanner demo pretty close to what I would like to realize.

I have tested the demo successfully, but I don't have any idea about how to go on from here and need some help or suggestion:

1. The first thing I need is a hard-coded chirp config, and let the sensor start running upon being connected to the power. 

2. Then I need to write some conditions in the MCU to check whether someone is inside the range of the alarm.

3. I need to access the GPIO to send a signal to issue the alarm (maybe connected to a relay)

For 1., I found a tutorial in <mmWave_Industrial_Toolbox>/labs/Fundamentals/Hard_Coded_Config and it looks quit promising

For 2. and 3. I wonder where could I get started: There are two projects (DSS, MSS), each containing thousands of lines of code, which is frustrating

I may also need to implement an FSM inside the program to properly realize the function, and I also wonder how I could use the GPIO (How to program in the CSS and how to wire it out)

Any suggestions are welcome!