hobbielektronika / Mbed 2 deprecated 06_spi_max7219_led8x8

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Dependencies:   mbed

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  1. SPI MAX7219 demo
  2. Hardware requirements:
  3. Wiring:

SPI MAX7219 demo

Simple demo to drive a 8x8-as LED matrix by a MAX7219 LED driver IC. After initialisation two characters (H and W) are displayed alternatively. The MAX7219 IC is driven by hardware SPI: SPI0 module at PTD1, PTD2, PTD3 (Arduino compatible pins).

Hardware requirements:

  • FRDM-KL25Z board
  • LED 8x8 matrix with MAX7219 controller

Wiring:

MAX7219FRDM-KL25zNote
VCC3V3Power
GNDGNDGround
DIND11MOSI (PTD2)
CSD10Chip select (PTD0)
CLKD13SCLK (PTD1)

/media/uploads/icserny/led8x8.jpg

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