Description 4 digit display module is usually a 12 pin module. In this Grove gadget, we utilize a TM1637 to scale down the controlling pins into 2 Grove pins. It only takes 2 digital pins of Arduino or Seeeduino to control the content, even the luminance of this display. For projects that require of alpha-numeric display, this can be a nice choice. Features - 4 digit red alpha-numeric display - Grove compatible - 8 adjustable luminance levels - Application Ideas - Time display - Stopwatch - Sensors input display For all Grove users (especially beginners), we provide you guidance PDF documents. Please download and read through Preface - Getting Started and Introduction to Grove before your using of the product. https://elecena.pl/product/9696375/104030003-arduino-display-grove-4-digits-tm1637 2017-08-05 https://elecena.pl/product/9696375/104030003-arduino-display-grove-4-digits-tm1637 2018-01-10 https://elecena.pl/product/9696375/104030003-arduino-display-grove-4-digits-tm1637 2018-01-25 https://elecena.pl/product/9696375/104030003-arduino-display-grove-4-digits-tm1637 2021-05-21 https://elecena.pl/product/9696375/104030003-arduino-display-grove-4-digits-tm1637 2021-12-13 https://elecena.pl/product/9696375/104030003-arduino-display-grove-4-digits-tm1637 2022-10-24 https://elecena.pl/product/9696375/104030003-arduino-display-grove-4-digits-tm1637 2023-09-11 https://elecena.pl/product/9696375/104030003-arduino-display-grove-4-digits-tm1637 2025-02-08 https://elecena.pl/product/9696375/104030003-arduino-display-grove-4-digits-tm1637 2026-02-14