Capsicum

🫑 A retrofitted wired audio doorbell with added WiFi connectivity 🔔

power 16340
wireless WiFi
mcu ESP32-C3
ongoing since Oct 2023

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Project Attributes
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Flashing ESP32-C3-WROOM-02

Components to consider

  1. ESP32-C3-MINI-1-N4 : ESP32-C3 module with PCB antenna and 4MB flash
  2. ESP32-C3-WROOM-02-N4 : ESP32-C3 module with PCB antenna and 4MB flash. Able to be assembled by PCBWay.
  3. 16340 / CR123A battery holder : rechargeable lithium battery
  4. ME6211 : LDO
  5. TP4054 : linear charger for lithium-ion batteries
  6. 16340 : 3.2V 5000mAh rechargeable LiFePO4 battery
  7. LiPo battery : 3.7V 2200mAh Li-po Lithium Polymer rechargeable battery
  8. Subwoofer 8ohm Speaker : 5cm 2W miniature subwoofer 8ohm speaker
  9. Subwoofer 8ohm speaker : 3cm 0.5W miniature subwoofer 8ohm speaker

Snap-fit and screwless 3D-printed enclosures

ESP32

Low Power battery measurement circuit