Week 05 — Hardware Planning
Date range: Feb 17 – Feb 23
1) Summary
- ✅ Selected core components (ESP32, e-ink display, OLED)
- ✅ Planned wiring layout and pin usage
- ✅ Designed system architecture
- ✅ Finalized component bill of materials
2) What I did
Hardware Selection
- Main controller: ESP32 — Low power, sufficient processing, built-in WiFi/Bluetooth.
- E-ink display: Waveshare e-ink display — Proven reliability, good refresh rates.
- OLED display: Small OLED for typing feedback.
Planning
- Wiring layout — Mapped pin usage for displays, keyboard, and peripherals.
- System architecture — Designed ESP32 as main controller with optional Raspberry Pi for advanced features.
3) Components selected
- ESP32 microcontroller
- Waveshare e-ink display
- OLED display module
- Mechanical keyboard switches
- LiPo battery
- Power management circuitry
4) Process images
