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When doing esp32 projects, you must hate to add an external battery to supply the power. This small circuit could solve such problems.
Built-in 18650 charging system.
Indicates the LED inside (green means full and red means charging)
Charging and working could be at the same time.
1 switch can control the power supply.
1 additional LED could be programmed (connected with GPIO16[D0])
0.5A charging current
1A output
Overload protection
Discharge protection
Full ESP32 broken pins
Click the link for more details: http://espressif.com/en/products/hardware/esp32-devkitc/overview
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When doing esp32 projects, you must hate to add an external battery to supply the power. This small circuit could solve such problems.