TM1638 key display module has 8 digit seven segment display, 8 keys & 8 LEDs. Using TM1638 Chip control everything using just 3 microcontroller pins. The advantage is only three IO ports will be occupied when it drives. Moreover the controller is not busy all the time as no scanning for seven segment display or even key scanning is not involved. It only need to read the relevant register to send display data or test button so it save MCU resources effectively.
- Weight: 28g
- Material: Glass fiber reinforced plastic PBT shell PA blades
- How to connect: VCC GND 5V power supply STB CLK DIO SCM IO port.
- Package included: 1 x LED display module 5 x Dupont line connectors