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4.2-inch e-ink screen ornament

Overview

This is an e-ink display based on the ESP32C3FH4 microcontroller. The e-ink is from a second-hand electronic price tag. The main controller is an SSD1683, and the resolution is 400*300.

The EPD driver source code comes from HalfSweet on GitHub.
The weather API uses Hefeng Weather, and the related GZIP decompression uses arduino_uzlib.
Real-time weather data comes from SHT40.
I'm currently refactoring the code and adding features using ESP-IDF, but since the deadline is approaching, I'll use this patchwork Arduino version for now.

Design Files

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It is your responsibility to test the circuit yourself and determine its suitability for you. EEWorld will not be liable for direct, indirect, special, incidental, consequential or punitive damages arising from any cause or anything connected to any reference design used.

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Update:2026-03-27 01:46:47

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