8X Seven Segments Display + 8X Key + 8X 2-Color LED Module for Arduino

Integrates buttons�� LED & Seven Segments Display - Only requires three IO ports to be driven - By day of the module's TM1638 chip micro-8 8-segment LED display and 8 buttons and 8 test Two-color LED control�� IO savings serial communication interface�� 8-level brightness adjustment (LED and adjust the brightness of a unified digital)�� and scan button scans showed no MCU intervention�� MCU only needs to read or send display data to register RAM chips can save MCU resources. - Comes with connection cable (20cm length)