Arduino Battery Shield for ESPea ESP8266 WiFi Module
This is an “appallingly small” add-on shield for ESPea that mounts on the bottom, USB-end of the ESPea by soldering the board to the GND, 3V3.
The heart of the board is the LTC4054 battery management chip by Linear Technology. The board has +/- through-hole mounting holes for a JST LiPo battery connector (supplied with the LiPo charger) and for an external DC power supply.
The swtich (SW1) can open / close the power from battery shield.
LED1 is led for charge. It will be off when battery is full charge
LED2 will turn on when battery is full charge
LED2 will turn on when device is powered by battery
25.6mm x 34mm without headers soldered in
ph2.0-2p JST connector and 5.5mm / 2.1mm DC barrel plug
The 5.5mm / 2.1mm DC barrel plug not soldered default.