I want to ask y’all a question regarding programming the Arduino uno for using it to send pwm signals to the Cars PWM alternators.
I already programmed my Arduino uno my voltage was 13.5 now it’s 14.3 which is good, the problem is when I turned on my head lights, A/C and dual fans the voltage dropped to 13.2 !!
My question is how to make it steady at the 14 range ?
Here is the codes I used