ESP32 Wiring and Pinout for MD_Max72XX and MD_Parola - Githubissues

MajicDesigns / MD_MAX72XX

LED Matrix Library

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ESP32 Wiring and Pinout for MD_Max72XX and MD_Parola #34

Closed tripad closed 4 years ago

tripad commented 4 years ago

I could not find a lot of documentation is around wiring an ESP32 with MD_MAX72XX so I thought i will leave this here for anyone trying to figure it out. (This took me a LONG time understand hehe)

I have tested this on my NodeMCU32s (with 38 pins)

To use the hardware SPI - Wire your ESP32 to the following pins

CLKPIN to Pin 13 - VSPI SCK (P18 on the board)_
DATAPIN to Pin 11 - VSPI MOSI (P23 on the board)_
CS_PIN to Pin 15 (This is an arbitrary choice. This is labeled P15 on my board)
GND and VCC go their respective pins

ESP32 Pinout for MD_Max72XX (src: https://www.teachmemicro.com/esp32-max7219-wifi-message-board/)

Hope it helps :)