Arduino UNO Solar charger shield Keyestudio
Keyestudio Wiki: povezava
Keyestudio solar charger shield boasts the features of collecting energy, power management and charging, as a stacked shield and compatible with UNO R3 control board. On this shield, BAT interface could output 5V when connected 3.0V-4.2V rechargeable batteries. At same time, the USB interface connected to external power and SOLAR port connected to solar panel can provide power for external batteries. When the DIP is dialed to ON end, external batteries or USB port supply power to UNO R3 board. Moreover, CH LED(red) is on when charge the external battery; OK LED indicator will be on if fully charged.