Week 14 — System Integration + Debugging
Date range: Apr 21 – Apr 27
1) Summary
- ✅ Connected ESP32 with Raspberry Pi via UART
- ✅ Stabilized inter-system communication
- ✅ Fixed critical bugs (input duplication, display sync)
- ✅ Refined overall performance and stability
2) What I did
System Integration
- UART communication — Established serial connection between ESP32 and Raspberry Pi for offloading AI requests.
- Protocol design — Created message format for reliable inter-device communication.
- Testing — Verified bidirectional data transfer with various message types.
Debugging & Fixes
- Input duplication — Fixed keyboard input being registered multiple times.
- Display sync — Resolved issues with OLED and e-ink showing inconsistent content.
- File consistency — Debugged file system errors and data corruption issues.
- Power management — Optimized battery usage during idle periods.
3) Stability improvements
- Zero input buffer overflow errors
- Display refresh reliability >99%
- UART communication latency <100ms
- Battery life extended to 8+ hours
- No data loss in standard operation
4) Process images
