The RepRap uses a gen7 v1.2 board as seen here: 1
it has been modified to work slightly differently to most gen7 1.2 boards, to allow the addition of an SD card and remove the need for an ATX power supply.
| Original Function | MM Function | ATMega Name | Arduino Name |
|---|---|---|---|
| X Min | SD SCK | PB7 | D7 |
| X Max | SD MISO | PB6 | D6 |
| Y Min | SD MOSI | PB5 | D5 |
| Y Max | X Min | PB2 | D2 |
| Z Min | Y Min | PB1 | D1 |
| Z Max | Z Min | PB0 | D0 |
| Power Enable | ' Unused ' | PD7 | D15 |
| Unused | ' Unused ' | PC4 | D20 |
| Unused | ' Unused ' | PC5 | D21 |
| Misc Header | ' Click Encoder A ' | PD2 | D10 |
| Misc Header | ' Click Encoder B ' | PD3 | D11 |
| Misc Header | ' Click Encoder Switch ' | PD4 | D12 |
| Misc Header | ' Unused ' | PD5 | D13 |
| Misc Header | ' SD CS ' | PD6 | D14 |
| I2C Header | ' I2C LCD SCL ' | PC0 | D16 |
| I2C Header | ' I2C LCD SDA ' | PC1 | D17 |
