Hardware (Eagle) and Software (Arduino) files for the 'Solar Switch'
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README.md
Solar_Switch_Arduino_Firmware.ino

README.md

Solar Switch

Code compiles in Arduino IDE and layout files open in Eagle.

This was designed as a cheap/easy/hackable method of controlling how solar and AC mains power is routed. By default, this system monitors a solar battery bank voltage, when it detects that the batteries are low, it switches the load to AC mains to allow the batteries to recharge - at which time it switches back to solar power.

This was mostly designed for hobbyists who have a only a few solar panels and want to power their projects/computers from solar, but do not have a big enough system to run their load 24/7.

It was designed using the ATMEGA328P in the Arduino IDE and a compatible Arduino shield header. This allows the user to add any number of accesories to the system. Some of the ideas that I had in mind were: Sd card logging and Wifi/GSM notifications.

The most current iteration is seen here: Prototype 3

Our first Arduino prototype board is seen here: Prototype 2

Board Layout: Layout

Our first Arduino prototype board is seen here: Schematic