This solution is modified from the MPPT step-down version and supports step-down or step-up. The on-board switch and dedicated program can be used to switch between step-up and step-down.
When in use, connect the input to the corresponding socket, and the other side is the output. Use the switch to switch the voltage down or boost according to the needs.
Program update : GITEE https://gitee.com/muyan3000/esp32-mppt
Foreign open source handling https://www.instructables.com/DIY-1kW-MPPT-Solar-Charge-Controller/
This project is modified from Gggggg's Lichuang version esp32 mppt - Jialichuang EDA open source hardware platform https://oshwhub.com/gggggg/esp32-1kw-mppt_copy
Discuss with each other QQ:483012638
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