Remote servo switch with lithium battery charging management based on ESP-01F

- Deep sleep can be achieved through programming by connecting the RESET pin of ESP-01F and IO16. Since the switch is basically used at night, sleep power saving can be set at other times
- It can be set to power off when the servo is not in use
- Programmable TP4056 charging current, it is recommended to use a 3000mAh battery
- the battery interface uses XH2.54
- Regarding EMI design, considering that this board does not have many signal lines (only two PWM lines at best), so I don’t pay too much attention to it. The board has been verified to be usable
- attached at the end ino file, open it and set the wifi name and password
. After connecting to wifi, the client's IP address will be displayed on the serial monitor. Use a mobile phone or computer connected to the same wifi, or a device that provides a hotspot, and fill in the IP in the browser. The address is ready for use
 
- the spring antenna is relatively fragile, so be careful when using it. It is best to have a box to install it. You can also use other modules with onboard antennas.
 
PS: Sorry for the confusion in the link, it is ESP-01F instead of ESP12. ESP12 is Goldfinger version and no pins.