I am aware that this is a basic question but I could not really understand it.
I am trying to convert pwm signal coming from my pretty standart RF receiver to analog signals. It produces pwm signals with the low point of 1 ms and high point of 2 ms. It is powered with 5v supply.
As I was researching on the matter, I saw that I needed a passive(?) low pass filter like this one.
I tried to calculate the resistance and capacitance values using online calculator I found. However, they require a variable called cut off frequency. I tried to learn about too but I did not understand it enough. I know that these type of receivers are designed to be directly compatible with servo motors or ESCs. So I expect the output frequency around 50 hz? not sure though.
So what should the cut off frequency of my filter should be or eventually what should the resistance and capacitance values be.