Grove - 12-Channel Capacitive Touch Keypad (ATtiny1616)

  • Mã sản phẩm: 12-Channel Capacitive Touch
  • Nhà sản xuất: Seeed Studio
  • Website hỗ trợ:

The Grove 12 button Capacitive Touch Keypad is built around the ATtiny1616, an AVR® 8-bit processor running at up to 16 MHz. ATtiny1616 is a low-power, high-performance chip integrated QTouch® peripheral touch controller which supports capacitive touch interfaces with proximity sensing and driven shield. With this module, you can easily create an arduino password keypad or a DIY phone keypad.


We made this keypad into a 3x4 form, just like the layout of a mobile phone keyboard. The traditional keypad requires 3 vertical lines and 4 horizontal lines to scan, which will occupy 7 I/O pins of the microcontroller. With the help of ATtiny1616 and Grove connector, only RX and TX two pins are enough for Grove - 12-Channel Capacitive Touch Keypad. You can easily use this module with a microcontroller with a hardware UART interface, or you can use the software UART to read the button input with two normal I/O pins.


All in all, the Grove 12 button Capacitive Touch Keypad is an easy-to-use module that requires very little code, especially when you use it with Grove compatible mainboards, no soldering, just plug and play.


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We've Released the Grove Selection Guide and hope to help you find the Grove suit you best.


  • Low Power ATtiny1616 controller
  • 3.3V / 5V compatible
  • Capacitive touch, high sensitivity
  • 12 button keypad
  • 4 pin Grove UART connector
  • On-board LED indicator


  • Phone keypad
  • Password access
  • Extended input interface

Hardware Overview

Capacitive Touch Keypad ATtiny1616
Figure 1hardware overview


HSCODE 9031900090
USHSCODE 8517700000
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