This is My first circuit that I have soldered and will be used for my line bot. This is a very simple motor circuit using an external 3V battery source(off the edge of the photo) hooked to two 3V DC motors. The Negative leads of the motors are each hooked to a 2n2222 transistor. The base lead of each transistor is hooked to a PWM capable PIN on the Arduino.
This is the circuit I have soldered for the robot. I am not sure of the exact ohms for the resistor but when I find out i will post.
As I progress in this project I will continue posting about it.