Printer Monitor with Battery

I used a different switch from the remixed design

Board
1pcs WeMos D1 Mini ESP8266 WIFI Module Board Pro 16M Bytes External Antenna Contor ESP8266 WIFI IOT Development Board
https://www.aliexpress.com/item/32892622667.html

Battery Shield
New For WeMos D1 Mini Battery Shield Lithium Battery Charging Boost Board Module With LED Light Mini Micro USB Charging Port 5V
https://www.aliexpress.com/item/1005001591011415.html

Battery
802030 500mAh 3.7V Lithium Polymer Rechargeable Battery For GPS MP3 MP4 Toy Fan Bluetooth Speaker Mouse Camera Massager
https://www.aliexpress.us/item/3256804592425453.html

Connector
50 Sets JST XH 2.5-2 Pin Battery Connector Plug Female & Male with 120MM Wire
https://www.aliexpress.com/item/1005001779223277.html

Screen
New product 0.96 inch OLED IIC White/YELLOW BLUE/BLUE 12864 OLED Display Module I2C SSD1306 LCD Screen Board for Arduino
https://www.aliexpress.com/item/32902463963.html

Switch
10PCS KCD11 perforate 2pin ON-OFF 3A 250V 10*15MM small boat rocker switch 10x15 power switch white Red and Black New
https://www.aliexpress.com/item/32879787231.html

Original design and code by Qrome
https://www.thingiverse.com/thing:2884823
https://www.youtube.com/watch?v=niRv9SCgAPk

Software
https://github.com/Qrome/printer-monitor