Send a little heart to someone special—no matter how far away they are. ❤️
Chaya2MQTT connects two Waveshare ESP32-S3 e-paper displays: press the button on one and a red heart appears on the other. Each display keeps track of the hearts you have sent and received, while MQTT quietly carries them between the two devices.
It is a tiny, always-there way to say I'm thinking of you without opening an app.
Simulated 200×200 E-Ink views (same Lucide icons and layout as firmware):
| Online | Offline | SoftAP setup |
|---|---|---|
 |
 |
 |
| Product title | Power-off |
|---|---|
 |
 |
More detail: docs/DISPLAY.md.
Browser (recommended): open the web flasher in Chrome or Edge, connect USB-C (data cable), and install. Prefer erase on a first or recovery flash.
PlatformIO:
pio run -e esp32s3-release -t uploadUse make upload to keep saved settings, or make upload-erase for a factory-style
flash that erases them.
After flashing, the device opens the Wi-Fi network Chaya2MQTT. Scan the QR code
on its display and follow the setup page to connect it to Wi-Fi and its partner.
Full setup, pairing, MQTT, and hardware notes: docs/README.md.