Saturday, July 17, 2004


2003-03-24 - Workbench - building and testing my custom I/O and motor driver boards with my HC11 controller board

Top of my custom I/O and motor driver board - this board combo provides 6x8 switch matrix and can drive 10 motors - with room and logic on the motor driver board to contol 2 more motors

Back of my custom I/O board and motor driver boards, hooked up

Back of my home-brew I/O baord, buffered input on lower left, data bus from the controller board on the right

Back of my home brew motor driver board

Closeup of the back of the 5 8-bit latches on the motor driver board

Closeup of the back of the H-bridge section of my home-brew motor driver board

Closeup of the back of the motor driver board - H-Bridge circuits on the left, 8-bit latch chips on the right

Closeup of the back of the 6x8 switch matrix I/O ports

2003-03-24 - Closeup of the 6 bit output, 8 bit buffered input custom board