Build Log
2026-04-04 — Week 2
First successful camera capture over Wi-Fi — the prototype is alive!
- Soldered battery to TP4056 charging module — first time soldering
- Flashed custom firmware to ESP32-CAM via USB-to-serial adapter using PlatformIO
- ESP32-CAM connects to Wi-Fi and serves a live camera page with photo capture button
- Achieved battery-powered operation: LiPo → TP4056 → ESP32-CAM (3.3V pin)
- Learned that 5V pin doesn't work well with LiPo voltage; 3.3V pin works directly
- ESP32-CAM is laggy for video (~5fps, drops WiFi under load). Evaluating Raspberry Pi Zero 2W for Phase 2 — proper 1080p video at 30fps, on-device processing, better camera modules
- Full wiring guide → — complete diagram and step-by-step for battery, camera, and microphone connections
2026-03-29 — Week 1
Wasn't able to get the whole thing working yet, but several key takeaways:
- Got the battery plugged in with blue and red indicator lights for charged/charging states
- Wiring was difficult — connections kept coming loose. Need soldering and alligator wires for stable power supply
- The entire work requires a good setup, dedicated time, proper tools, and good focus
- Visited Micro Center with Shamil — great experience, but couldn't find many parts. Will order from Amazon
- Shopping list for next week: multimeter, breadboard, solder kit, alligator wires
2026-03-26
Components arrived: ESP32-CAM, INMP441 microphone, LiPo battery, TP4056 charger, jumper wires. Total: $57.62. Next up: wiring diagram and first assembly.