rimip
Newbie level 6
Hello guys,
I need help with a project. I am evaluating a signal coming out of a RC receiver, which is a servo signal.
I put the signal through a RC filter circuit, and it ranges from 0.22V to 0.28V DC.
I want to read this value into the microcontroller to come up with a PWM 10 bit number, which ranges from 0-1023 BUT, only from 0.23V to 0.28V.
I have tried to put it through op amps, with a gain of 10, so that I get 2.2V to 2.8, but still, the range is very small and I am having trouble with the equations in my programing.
Is there's a way to make the signal more "prepared" for the MC, to increase its range?
I need help with a project. I am evaluating a signal coming out of a RC receiver, which is a servo signal.
I put the signal through a RC filter circuit, and it ranges from 0.22V to 0.28V DC.
I want to read this value into the microcontroller to come up with a PWM 10 bit number, which ranges from 0-1023 BUT, only from 0.23V to 0.28V.
I have tried to put it through op amps, with a gain of 10, so that I get 2.2V to 2.8, but still, the range is very small and I am having trouble with the equations in my programing.
Is there's a way to make the signal more "prepared" for the MC, to increase its range?