LED - 2. Driving 8 X 8 Dot Matrix
This document is derived from my book , “ Raspberry Pi for Makers " I'm using a Raspberry Pi 3 and python 2.7. 8X8 Dot matrix is an array of LED elements horizontally and vertically. It has 64 LED elements. There are many types, from monochrome to RGB. Many easy-to-use display driver modules are also available. LED metrix has a much brighter screen than LCD or OLED. So showing this can be useful when the amount of information is small. <8X8 Dot Matrix with MAX7219 Driver 8X8 Dot Matrix> The easiest way to use the dot matrix is to use the display driver for the matrix. This driver can controll the dot matrix using shift registers. Shift registers typically communicate with Arduino or Raspberry Pi using serial communications such as SPI, UART, or I2C. Adafruit also recommends using the 74HC595 or TPIC6B595 shift registers (both manufactured by Texas Instruments) or the MAX7219 LED...