product description
TM1638 chip key display module 8-bit AVR Arduino digital LED lamp Features: 8, 8, 8 LED, 8 digital tube, a total of cathode LED digital tube. Using the TM1638 chip, the module captures three or more common SCM peripheral circuits. Its advantage is that it occupies only three IO ports when driven. SCM does not need to work for scan display and key scan. Just read the relevant registers to send display data or test button, effectively save MCU resources. Button sensitive and effective display. 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.
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