I have a PCB with a 16F1283 chip to control 5 blinking LEDs buried inside a model. The board is powered by 5V which is also used to turn on 5 steady-on LEDs (total of 10). I want to use an external PIC & PWM to 'ramp up' the voltage from 0-5V to make the 5 steady-on LEDs fade in, but will it harm the PIC?