xue-fei / i2c-thumb-keyboard

Handheld tactile switch keyboard using the TCA8418.

i2c-thumb-keyboard

Handheld tactile switch keyboard using the TCA8418.

For more info see these hackaday.io posts:

• Working on v2
• Raspberry Pi i2c Connection

v1.0 Photo

BOM

• 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:
  • 1x JST PH Connector Socket S4B-PH-SM4-TB(LF)(SN)
  • 1x JST KR Jumper Cable

Prior Work

teensy-thumb-keyboard