Outdoor CO₂ & Audio PCBA
Budget: $30 – $250 USD
I want to create a PCBA contains ESP32-C3-Mini, SCD41, INMP441, JST-PH 2Pin port serves as the Solar/Charger Input. The port leads directly to LiFePO4 charging IC (like the CN3058) on the PCB. The IC manages the power from a solar panel to safely charge the 4P battery pack at a maximum of 3.6V , SMT Battery Clips for 4p 10440 batteries, I have no limit on the width and length of the PCB but I need to keep the design including the batteries as thin as possible. so I prefer to use a "Dead Bug" or Cutout Mounting so the batteries sit on it's side inside the board rather than on top of it.