This routine sets the speeds of two modified servos for a simple 2-wheel differential drive robot. A speed of -60 will make a motor go in reverse at full-speed. A speed of 0 will make a motor stop. A speed of 60 will make a motor go forward at full-speed.
This would make a 2-wheel drive robot spin clockwise. The left motor will be rotating in the forward direction and the right motor will be rotating in the reverse direction. The "aMyRobot.tea" file is a copy of the "aMo_Def.tea" file which contains specific servo parameters for the robot.