The following links are Adobe Acrobat files of the printed documentation supplied with the Stamp Activity Board.
I have some doubts about the accuracy of the schematic. The drawing seems to conflict with the user's guide in some places.
Vss | P1 | P3 | P5 | P7 | P9 | P11 | P13 | P15 | Vin |
2 | 4 | 6 | 8 | 10 | 12 | 14 | 16 | 18 | 20 |
1 | 3 | 5 | 7 | 9 | 11 | 13 | 15 | 17 | 19 |
Vss | P0 | P2 | P4 | P6 | P8 | P10 | P12 | P14 | Vdd |
BSC2-IC Pin | Connection |
---|---|
P15 | Socket A, pin 7. Socket B, pin 1 connected through 1 KW isolation resistor |
P14 | Socket A, pin 6. Socket B, pin 2 connected through 1 KW isolation resistor |
P13 | Socket A, pin 5. Socket B, pin 3 connected through 1 KW isolation resistor |
P12 | Socket A, pin 1. (via 1KW resistor) RC filter for Analog Output (X3) |
P11 | Speaker (Output) Pushbutton/LED circuit |
P10 | Pushbutton/LED circuit |
P9 | Pushbutton/LED circuit |
P8 | Pushbutton/LED circuit |
P7 | Potentiometer RC network |
P6 | No connection |
P5 | No connection |
P4 | No connection |
P3 | No connection |
P2 | No connection |
P1 | zPin (Pin 1) of the RJ-11 connector (for X-10) |
P0 | mPin (Pin 4) of the RJ-11 connector (for X-10) |
Maintained by John Loomis, last updated 4 Feb 1999