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3 smart home upgrades you can make with a $24 Arduino board

3 DIY projects you can do to create a smart home with an Arduino board.
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Build Your Own Arduino & Bootload an ATmega Microcontroller – part 1

There are many reasons to build your own Arduino circuit on a protoboard or a custom-designed printed circuit board. At the heart of the Arduino platform is an AVR microcontroller, in usual way you ...