MAX 7219 / MAX 7221 Driver for ESP32

Introduction

A driver to control one or more MAX7219 / MAX7221 serially interfaced, 8-Digit, LED Display Drivers

Documentation

Samples

Several samples are located under examples. This section lists samples and capabilities demonstrated. Refer to a sample README.md file for more details.

max_7219_7221_basic demonstrates how to initialize, configure a single MAX7219 / MAX7221 device and display symbols. This is a good starting point for new users,
max_7219_7221_cascade demonstrates how to initialize, configure a chain of three MAX7219 / MAX7221 cascaded devices and display symbols,
max_7219_7221_decode demonstrates how to initialize, configure a single MAX7219 / MAX7221 device and set per digit decode mode,
max_7219_7221_intensity demonstrates how to control display intensity,
max_7219_7221_scanlimit demonstrates how to control scan limit (how many digits are active on a given MAX7219 / MAX7221 device),
max_7219_7221_temperature demonstrates how to display the current ESP32 device temperature, minimum and maximum,
max_7219_7221_testmode demonstrates how to control test mode.

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