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AVR Serial (USART) Tutorial

Serial communication on an embedded system is quite possibly the easiest and cheapest way to gain insight as to what is going on with your code. On most AVR microcontrollers serial communication is built right in. They have a peripheral

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Large LED Matrix Display – Part 1

I’ve wanted a digital marquee for a long time. The kind you see at some gas stations or grocery stores that say simple messages like “Have a nice day!”. They tend to be pretty expensive for something pretty small. I

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