MAX7219 LED multiplexing tutorial
The MAX7219 LED multiplexing chip can drive up to 64 individual LEDs. And in this tutorial we will learn how the MAX7219 works, what multiplexing is, and how you can use popular MAX7219-based modules to drive 7-segment displays and LED dot matrix displays with a PIC microcontroller. Let's go! Thanks for watching, and let me know in the comments if you have any questions! Companion article: http://www.friendlywire.com/tutorials... Email list: http://www.friendlywire.com/email Website: http://www.friendlywire.com Twitter: / friendlywire Reddit: / friendlywire Facebook: / friendlywire Instagram: / friendlywire Timestamps: 00:00 Introduction 00:33 Components needed for this tutorial 01:07 What is multiplexing? 02:07 How does the MAX7219 work? 04:10 How to control the MAX7219 06:00 Test circuit with a PIC microcontroller 06:36 Building the circuit 08:30 MAX7219-based 7-segment module 10:22 MAX7219-based dot matrix module 11:57 Conclusion
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