Handheld tactile switch keyboard using the TCA8418.
For more info see these hackaday.io posts:
- 60x EVQ-Q2B03W Tactile Switch (SW1-SW60)
- 10x 1N4148WS Diode (D1-D10)
- 1x TCA8418
- 2x 0603 10k Resistor (R1, R4)
- 2x 0603 4.7k Resistor (R2, R3)
- 2x 0603 0.1uF Capacitor (C1, C2)
- 1x 0603 10uF Capacitor (C3)
- Optional: