Haljia
TM1638 Digital LED Display Module 8-Bit Tube 8 Keys Compatible with AVR Arduino ARM

Product Details

Only requires 3 IO port to control TM1638 Digital LED Display Module VCC GND connect with 5V power supply, STB CLK DIO connect with IO port. Expected life of LED Display Module is 50000 hours The rated voltage: DC12V The rated speed: 9500 R.P.M

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