Hi.
Does anybody have experience connecting a radar proximity sensor to teensy 3.1?
I am thinking about the Hygrosens RSM-3650. (www.voelkner.de/products/143210/Radar-Bewegungsmelder-Rsm-3650.html)
The sensor is based on the doppler principle and produces an AC signal from tens to hundreds of Hz.
The interesting part is that it actually gives information on the speed/movement of an object and not on the distance. However the amplitude of the signal varies greatly with distance and size of the object.
My idea is using the internal 16 bit ADC and the audio lib with an FFT.
The signal would be AC coupled (High pass ~20Hz). Eventually the internal PGA could be dynamically adapted to the varying signal amplitude. Output is an LCD and several LEDs.
Any input regarding the use of the audio lib is apreciated.
The project is "just for fun/demo" at the moment and I will not start before July.
Regards.
Eduardo
Does anybody have experience connecting a radar proximity sensor to teensy 3.1?
I am thinking about the Hygrosens RSM-3650. (www.voelkner.de/products/143210/Radar-Bewegungsmelder-Rsm-3650.html)
The sensor is based on the doppler principle and produces an AC signal from tens to hundreds of Hz.
The interesting part is that it actually gives information on the speed/movement of an object and not on the distance. However the amplitude of the signal varies greatly with distance and size of the object.
My idea is using the internal 16 bit ADC and the audio lib with an FFT.
The signal would be AC coupled (High pass ~20Hz). Eventually the internal PGA could be dynamically adapted to the varying signal amplitude. Output is an LCD and several LEDs.
Any input regarding the use of the audio lib is apreciated.
The project is "just for fun/demo" at the moment and I will not start before July.
Regards.
Eduardo
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