Peter Hoerlein's PIC Brick

This is Peter's version of my PIC Brick. He has made a custom printed circuit board for his and provided the artwork.

Note: Peter' PIC brick actually uses two PCB's (they can both be seen in the photograph above) because he was unable to find the L293D, he found an equivalent that didn't have the integrated diodes so he had to mount extra diodes on another board.

See PIC Brick Parts' Sources.

The actual size of the PCB is 27mm x 47mm.

     Parts List
     Resistors:
     R1,R3,R11 15k
     R2,R4,R5,
     R7,R8,R10 10k
     R6,R9     100k
     R12       4k7
     R13       470
     Semiconductors:
     D1        1N4001
     Q1,Q2,Q5  NPN transistor
               BC547 or equivalent
     Q3,Q4     PNP transistor
               BC557 or equivalent
     IC1       BS1-IC Parallax Basic Stamp
     IC2       L293D
     Connection Details:
     P1 (I/O connector)
     1    Sensor 2 -
     2    Motor 2 -
     3    Motor 1 +
     4    Motor 1 -
     5    Button
     6    Supply -
     7    Aux -
     8    Motor 2 +
     9    Supply +
     10   Sensor 2 +
     11   Sensor 1 +
     Note Bridge Sensor 2 - and Sensor 1 - on the battery box.
     P2 (programming lead) The three connections are adjacent to the stamp pins 2,3 and 4.
     1    Ground    (Stamp pin 2)
     2    PC1       (Stamp pin 3)
     3    PC0       (Stamp pin 4)

Top layer of PCB

Bottom layer of PCB

Component Overlay

You can email Peter at phoerlei@csenergy.com.au