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.

Continue reading “Using the MAX7219 in your Projects – Part 2”
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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.

Continue reading “Using the MAX7219 in your Projects – Part 1”

Robot Eye Expressions using LED Matrix Display

RobotEyes_IconI was exploring ways to make a future robot project more appealing and came across a number of articles about animated robotic eyes created to convey expression or mood. This looked like a bit of fun and quite achievable using the LED matrix modules that I have been playing with for a while. Here’s the result.

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MAX7219 LED Matrix Module Micro Word Clock

WordClockA Word Clock is a clock that tells the time using words.

In an era when super-accurate digital clocks are available to most people on the planet, it intrigues me that Word Clocks have a place as they only show the time to the nearest five minutes!

Building one has been on my project to-do list for a while, but I didn’t want to invest the time and money needed for the various ‘from scratch’ build projects that I found online.

Continue reading “MAX7219 LED Matrix Module Micro Word Clock”