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In this DIY guide I will show you how to make your own Arduino aquarium auto lighting system. In this project I decided to make my own PCB that is based on Arduino UNO microcontroller - Atmega328p. Bellow you will find the electronic schematic with PCB layout so you can easily produce it.
The current time can be set for the first time (or when the coin battery is low) via the serial monitor. You can change the lighting change time or led color from code.
~Project updates can be found here:…
~Watch the video below:

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