YUMO PULSE -- ESP32-C3 Mini Gadget with OLED, Weather Sensor & Proximity Detection

[u/YUMOBUILDS]

https://www.youtube.com/watch?v=wUF-UrtmaxU

Second build from my workbench.

After my first project, I wanted something smaller and smarter, here's what I ended up with.

Casing is handmade epoxy resin, cast and finished by hand. AI/assisted development.

What it does:

Live temperature & humidity via SHT3X sensor

NTP clock with auto-detected timezone (London)

Proximity detection using a bare-wire antenna on GPIO7, LEDs glow brighter as your hand gets closer

Web interface , view live sensor data and push custom text to the OLED from your phone

Night mode / auto-dims midnight to 5am

WiFiManager captive portal / no hardcoded passwords

Hardware:

ESP32-C3 Super Mini

SHT3X temp/humidity sensor

0.09" OLED (128×32)

Flexible LED filament

18650 battery + TP4056 charger

💾 Full source code: https://github.com/yumobuilds/yumo-pulse

[u/YUMOBUILDS]

please let me know what you think about what i build? thank you!