An ultra-realistic, IoT-enabled clock that displays dynamic poetry fetched via cellular network (NB-IoT).
The Poem Clock is more than just a timepiece; it's a piece of kinetic art that updates its time via atomic-accuracy cellular signals and displays curated poetry or classic quotes. Designed for low power and high visual impact, it uses a custom-coded 7-segment engine to mimic premium hardware displays on e-paper.
- Board: Inkplate 10 (Inkplate 5 V2 compatible).
- NB-IoT Module: SIM7020E or SIM7002E.
- RTC: PCF85063A (External for accuracy).
- MCU: ESP32 Dual-Core.
- AI-Powered "Poem Journey": Fetches personalized poems based on Language, Author, Style, and Time of day from a Groq-powered FastAPI backend.
- NB-IoT & NITZ: Synchronizes time directly from cellular towers without needing WiFi.
- Anti-Ghosting Engine: Specific localized "deep clean" refreshes for pristine E-Ink quality.
- Ultra-Realistic UI: Custom segment-drawing logic with realistic spacing and "breathing" transitions.
- WiFi Config Portal: Easy setup via a temporary smartphone Access Point.
- Thread-Safe Core: Uses FreeRTOS mutexes to manage concurrent modem and display access.
- Clone the Repo.
- Configure Secrets:
- Copy
config.h.exampletoconfig.h. - Set the IP/URL of your AI backend.
- Copy
- Upload to Arduino: Use the Inkplate core in Arduino IDE.
- Connect & Enjoy: Hold the capacitive pad (PAD1) on boot to enter Configuration Mode.
The project follows an Edge-to-Cloud architecture, delegating heavy AI generation to a remote server while keeping the ESP32 optimized for low-power display management and cellular timing.
For a deep dive into the end-to-end data flow (from Config Portal to AI generation and E-Ink rendering), check out our Detailed System Architecture.
This project is licensed under the MIT License - see the LICENSE file for details.
Created by Marcello Mangione (Elettronica Mangione - R&D Hardware/Embedded).