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Solarcharger

For an small solar system, you need solar cells a mppt solar charge controller?, a battery and maybe a Battery Management System? (BMS).

There are also other types of solar charge controllers in various specifications. We may start a discussion here, how we could sort the options on the market for solar energy systems.

The ->libre solar project aims on developing an open source charge controller.

"The Libre Solar project started with the development of a flexible and hackable MPPT charge controller. After a few prototypes using Arduino boards and AVR 8-bit microcontrollers, the current designs are based on 32-bit STM32 ARM MCU with lots of free computing power to allow your own additions in software and communication features. (https://libre.solar/hardware/mppt-2420-hc.html).