Display with 8 LED segment displays of size 5x7. Reverse engineered by kahvikello & Zouppen.
Slave board pinout:
| Pin | Description | Atmega328 pin | Duemilanove/Uno pin |
|---|---|---|---|
| 1 | 5V | 5V | |
| 2 | 5V | 5V | |
| 3 | GND | Gnd | |
| 4 | GND | Gnd | |
| 5 | IC 22 OUTPUT ENABLE | PC5 | A5 |
| 6 | IC 21 OUTPUT ENABLE | PC4 | A4 |
| 7 | IC 20 OUTPUT ENABLE | PC3 | A3 |
| 8 | IC 19 OUTPUT ENABLE | PC2 | A2 |
| 9 | IC 18 OUTPUT ENABLE | PC2 | A1 |
| 10 | IC 17 OUTPUT ENABLE | PC0 | A0 |
| 11 | IC 16 OUTPUT ENABLE | PD7 | 7 |
| 12 | IC 15 OUTPUT ENABLE | PD6 | 6 |
| 13 | IC 15-22 LATCH CLOCK | PD5 | 5 |
| 14 | IC 14 LATCH CLOCK | PD4 | 4 |
| 15 | IC 14-22 SHIFT CLOCK | SCK | 13 |
| 16 | IC 14-22 SERIAL DATA INPUT | MOSI | 11 |
Max clock frequency 24 MHz