View both cchematic and PCB files with Kicanvas These are Rev 2 files.
LCD And I2C Interface.kicad_sch
The connector is JR12 6P6C and pin 1 is on the left when the connector is held with the contact pins up and facing the observer.
Note the GPAD is a 5V logic level peripheral device. Level shifters must be used when controlled by a 3.3V device.
| Pin# | Signal Name | Note |
|---|---|---|
| 1 | nCS | Active low |
| 2 | COPI | Input to GPAD |
| 3 | GND | |
| 4 | SCK | Input to GPAD |
| 5 | ControllerVcc | 5 Volts, an optional way to put power into the GPAD |
| 6 | CIPO | Output from GPAD, 5V. |