How to build an MPGuino
From EcoModder
This page contains help and ideas to customize the MPGuino to hopefully make the build/install process easier for beginners and/or to cleanly integrate it into the vehicle.
| Arduino | LCD | Symbol | Function |
|---|---|---|---|
| GND | 1 | Vss | Display Power GND |
| +5V | 2 | Vdd | Display Power +5V |
| D6 | 3 | Vo | Contrast Adjust |
| D4 | 4 | RS | Register select |
| GND | 5 | R/W | Data read/write selector (GND = Write only) |
| D5 | 6 | E | Enable strobe |
| 7 | DB0 | Data Bus 0 | |
| 8 | DB1 | Data Bus 1 | |
| 9 | DB2 | Data Bus 2 | |
| 10 | DB3 | Data Bus 3 | |
| D7 | 11 | DB4 | Data Bus 4 |
| D8 | 12 | DB5 | Data Bus 5 |
| D12 | 13 | DB6 | Data Bus 6 |
| D13 | 14 | DB7 | Data Bus 7 |
| D9 | 15 | A | LED backlight power +5V (*uino D9 connects to transistor/5V and then to LCD pin 15) |
| GND | 16 | K | LED backlight power GND |
| D2 | Injector pulse | ||
| D3 | Injector pulse | ||
| A0 | VSS (Vehicle Speed Sensor) | ||
| A3 | Left Button | ||
| A4 | Middle Button | ||
| A5 | Right Button | ||
| GND | Button Common Ground | ||
| Arduino | LCD | Symbol | Function |
