TM1638 8 Bit 16 Tasten LED Digital Röhrenmodul Tastatur Scan Display Modul MCU K
3,38 €
Adapts TM1638 digital tube drive chip. Common anode LED digital tube. 1 x Digital TM1638 8 Bits LED Keyboard Scanning And Display Module Digital Tube MCU. Only need three common IO and could drive, no need MCU scan, save MCU sources.
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