I am building a robot for an Engineering class, and am having power supply issues. How can I wire up my arduino and hbridge to run on too run on two individual power supplies, but have them work together.
I will be running an SG90 servo, an ultrasonic sensor, 3 Sharp IR sensors, 2 collision sensors, a Tamiya gear box, and an 8 way line sensor array.
My plan is to use 6aa batteries to run the hbridge, and a 9v to run the arduino. I think I fried my board trying to wire it the first time.
Any help or advice will be greatly appreciated