I’ve been searching around but without success.
My goal is to measure the signal strength of a tyical 38 khz ir receiver.
I thought that the analogRead function should give me the output voltage and this could give me an idea of how intense the signal is being received.
I have done a simple sketch for reading this input but i think things work different that i expected.
The thing is that sensor is always showing a 5v value 1023 and dropping to 1 to 5 value but i am not sure that is consequence of my ir ir signal coming to the sensor, as if i don’t push any button the behaviour is similar.
attached you can find some results from the serial output with a 220 ohm resistor into the output sensor but maybe is completely useless.
Thanks in advance.
analog read 220 ohm (1.69 KB)