Arduino Compatible Coding 22 - Interfacing TTP229 touch keypad with Arduino
Автор: Engineers Garage
Загружено: 2025-01-06
Просмотров: 43
In the previous tutorial, we learned how to interface a buzzer with Arduino. A buzzer is an audio signaling output device. Embedded systems are built by interfacing several input and output devices with a controller or computer.
In this tutorial, we’ll interface an input device — specifically, a TTP229 capacitive touch keypad — with Arduino. The TTP229 is a popular, 4×4 keypad that supports 8/16 key inputs with single and multi-key options. Interestingly, it can be interfaced with a microcontroller or Arduino by using only two pins.

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