A trackpad build guide for the Corne keyboard.
| Name | Number | Notes |
|---|---|---|
| Adapter PCB | 1 | |
| Connector PCB | 1 | v1 or v2, based on the sensor mount type |
| Elite-C | 1 | |
| BlackBerry 8520 trackpad | 1 | |
| TXB0106PWR | 1 | Bidirectional level shifter 5V <-> 2.85V |
| DF30FB-20DS-0.4V | 1 | SMD connector for BB8520 |
| LT1117CST-2.85 | 1 | 2.85V DC Regulator |
| Mill-Max sockets | 1 | |
| Mill-Max pins | 50 | |
| 10 Position Cable Socket | 1 | Or any compatible |
| Connector header 10POS 2.54MM | 1 | |
| Capacitor 10uF | 2 | |
| Capacitor 100pF | 3 | |
| Capacitor 0.1uF | 3 | |
| Resistor 2.5k | 2 | |
| Resistor 3.3k | 2 | |
| Resistor 220k | 2 | |
| Spacer M2 10mm | 4 |
There are two options for the BlackBerry 8520 sensor mount:
- v1 connector PCB - with flex cable. The sensor is mounted directly on the 'H' keycap.
- v2 connector PCB - no flex mount. The sensor is mounted directly on the connector PCB.
This build guide shows the v2 option, but v1 is very similar from the build perspective.
