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How to use I2C. In this tutorial you will learn all about the 2 wire I2C serial protocol. Learn how easy it is to use, how it works and when to use it...
What exactly is RS232 and how does it work? - Find out Here!
This 74HC595 shift register tutorial shows you how to increase outputs for any microcontroller. Learn how to add 8, 16, 32 or more outputs with multiple 595's.