• 1
    All the pieces are ready ?
  • 2
    Solder battery, TP4056 and switch.
    Hold them with glue.
  • 3
    Solder dcdc step-up and Raspberry Pi
    Connect to pins 5V and GND in GPIO). Hold the connections with some glue. Adjust the dcdc Vout to 5V BEFORE TO CONNECT THE RASPI.