Build tinyTouch
1. Get the parts
- Board: ESP32-S3 Super Mini
or Seeed Studio XIAO ESP32-S3 - Fingerprint sensor
(AliExpress includes cable) - 1.0 mm, 6-pin sensor cable
- USB data cable
- Wire and soldering tools
2. Print the case
| Part | Size | Actions |
|---|---|---|
| Top | 27.7 × 27.7 × 15.7 mm | STEP |
| Base | 25.5 × 25.5 × 12.9 mm | STEP |
| Download all | ||
3. Wire it up
| Pin | Signal | Super Mini | XIAO |
|---|---|---|---|
| 1 | VTouch | 3V3 | 3V3 |
| 2 | TouchOut | GPIO2 | D1 |
| 3 | VCC | 3V3 | 3V3 |
| 4 | TX | RX | D7 |
| 5 | RX | TX | D6 |
| 6 | GND | GND | GND |