I am using a ADM00308 with a MTS2916A driver development board from MicroChip. There is a serial port RX & TX which can be programmed into an input. I'll use those inputs to drive the motor a specific direction. The signals I will be using is 4.5V for the motor going clockwise. By going counterclockwise the signal will be 18V. This is because the clockwise speed is setted to be slower than the reverse speed. I am planning to tap these signals and put it on my input. Since the operating voltage of the PIC16F833 processor is 2V to 5.5V , am I able to put 18V with a 10k resistor on the input of the processor? The current is about 0.150A.
Since for example 3.3V leds can be driven by a supply of 12V with a specific resistor on it, I am not sure if the same applies for input of microprocessors. Sorry for my potential silly question.