TTP229 Micro:Bit MakeCode software
TTP229 Micro:Bit MakeCode software
Here's an adaptation of code for the Arduino that works nicely on a Micro:Bit connected to a TTP229 keyboard. The keypad unit requires a jumper at the TP1 and TP2 positions located just above the "2" pad on the bottom two rows of solder pads. I recommend using pins and jumper blocks so you can make changes as you wish. The keypad's SDO (serial-data out) pin connects to MB pin 1, and the SCL (serial clock) connects to MB pin 0. Connect the TTP229 VCC pin to the MB's #V contact, and connect the keypad's GND pin to the MB's GND pad. --Jon
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