Hi all, anyone able to help me with a RF Peak detector with a RP2040.
I have a RF transponder that sends out packets of data. for now im not worried about demodulating the data, but just having two Led's triggered based on the signal strength.
when the transponder is over the loop its set an output pin (Red) Led to high, and the transponder is near it set (Orange) Led to high. and when there is no signal than all are OFF.
I have a loop antenna and a impedance circuit in line than an amp to august its output gain for here i want to connect it to the RP2040.
But im not sure what circuit need to have to connect the RF signal from the amp to an analog pin on a RP2040.
Ive seen example that using two 10k resistors to both ground and vss of the microcontroller, but not sure if this is right.
anyone here got any suggestions.
ive included three pictures of the osilloscope of the signal for when the transponder off, near and over the loop.