Mô Đun Hiển Thị Kỹ Thuật Số Tm1638 Tm1637 4 Phím Cho Avr Arduino Max7219

Giới thiệu Mô Đun Hiển Thị Kỹ Thuật Số Tm1638 Tm1637 4 Phím Cho Avr Arduino Max7219

【ION】TM1638 Module TM1637 4 Key Display For AVR Arduino MAX7219 Digital LED TubePackage Included:

1. 8 buttons,

2. 8 LEDs

3. 8-digit digital tube, common cathode LED digital tube;

4. It can be directly connected with STC and other microcontrollers;



The chip used in this module is TM1638, which integrates the above three common peripheral circuits of single-chip microcomputers. The biggest feature is that it can be driven by only occupying three IO ports of the single-chip microcomputer. Scanning display and key scanning do not require the intervention of the single-chip microcomputer, only need to read and write related registers to send display Data or detection buttons save MCU resources. Purchase this module to provide example programs.

Imagine that we usually use a single-chip microcomputer to connect 8 LEDs, 8 digital tubes, and 8 buttons. How many IO ports are needed, far more than 3 IO ports, but it can be achieved with this module. After practical application, the key sensitive display effect is good.

Wiring method:

VCC GND connects to 5V power supply, STB CLK DIO connects to MCU IO port.

Shipping list:

1. Button digital tube LED display module 1 piece anti-static tape packaging

2.20CM connected to 5 Dupont lines

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