I have a question. I need to get a higher resolution than 255 on pwm channels.
the problem I’m driving a low current coil 1.8 ohms up to 1.1 amps(max 1.98v) from a 14.5volt car power system.
I need to have at least 200 steps from 0-1.98 volts for accurate control. the more the better.
I know i could run a buck converter to drop the voltage. but i’m trying to minimize the parts that i use. on my project.
and it needs to run at a minimum of 20khz to not hear the coil. (this part i already figured out and have my mega running at 31khz)
is there an I2C ADC add on board that will do what i need?