Arduino electronics software

Using the MAX7219 in your Projects – Part 2

In the first part we explored the functions of this MAX7219 and how the SPI link is the key to making the device work for us.

In this part we’ll develop code to efficiently display numeric data using 7-segment and LED matrix displays.

Arduino electronics hardware

Using the MAX7219 in your Projects – Part 1

The MAX7219 is a common and inexpensive IC used for controlling up to eight 7-segment LED displays (or 64 individual LEDs).

Beginners are often intimidated by how to use this versatile component with a microcontroller, turning to libraries to help them solve the problem. In most simple cases, it is more efficient to run the IC directly. Here’s what you need to know to get the job done.