Electronic Circuit For Building a 5 DOF robot

Thread Starter

Simeon OMA

Joined Feb 29, 2012
I have built a 5 DOF robot using 5 motors- 2 DC motors and 3 stepper motors. The motors are controlled by a PIC16F877A. The PIC16F877A is linked to my computer via a MAX 232 to serial port to USB port.

Because the microcontroller outputs 5V logic which is insufficient to power the motors, 4 L298s are used to switch the 5V to 12V coming from the power supply.

Inspite of all these connections, the electronic circuit is still not outputting right.

Any advice on this will be highly appreciated.