Описание
8х знаковый 7 сигментный LED модуль последовательного управления (SPI)
На контроллере MAX7219
- Power: 5V
- Material: PCB + Electronic Components
- Size: 76 * 21 * 11mm/2.99*0.8*0.43″
- Wiring instructions (a program, for example, you can pick any IO port definition can be modified in the program):
VCC → 5V
GND → GND
DIN → P1.0
CS → P1.1
CLK → P1.2 - Notice:
VCC and GND Do not reversed, it would burn the chip
51 MCU P0 port requires pull-up resistor, if your device does not have a pull-up resistor can be connected to other ports data lines
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