Quantity   Component name
1 × 2S LiO battery charger Gikfun 2S Lithium Input Ouput Protection Board PCB 7.4V 3A
1 × Node MCU 12-E WINGONEER NodeMcu Lua ESP8266 ESP-12E CP2102 Development Board
1 × ADS1115 ADS1115 16 Bit 16 Byte 4 Channel I2C IIC Analog-to-Digital ADC
1 × ESP8266 ESP8266 NodeMcu