TECNOIOT 5pcs TM1638 Module Key Display 8 bit Digital LED Tube

【TM1638】 TM1638 Module Key Display 8-Bit Digital LED Tube for AVR Arduino. 【Design compact】 This module for the chip TM1638, set the above three kinds of single chip microcomputer common circuit, the biggest characteristic is to simply take microcontroller three IO mouth can drive. 【Compatible】Scanning display and key scan do not need microcontroller intervention, only need to register to display data related to reading and writing or testing buttons, save MCU resources. Buy the module provides an example program. 【Easy operation】 Wiring methods: VCC GND connected 5V supply, STB CLK DIO connected microcontroller IO port.Including the following resources: -8 key; -8 LED common cathode; -8 to digital tube common cathode. 【Entrega rápida】Envío desde España con llegada rápida a toda la UE