Boosting ESP32-C3 SuperMini WiFi: a simple and effective antenna mod

The ESP32-C3 SuperMini is a budget microcontroller board at around two euros—powerful but hamstrung by its tiny built-in antenna, which severely limits WiFi range. Adafruit reports that maker Peter Neufeld engineered a simple fix: attach a thirty-one millimeter length of silver-plated wire configured as a quarter-wavelength antenna. The wire features a small horizontal loop connecting to the board's existing antenna terminals, with the rest angled vertically. The original post's power output measurements show the modification delivers substantial improvements in wireless range.

Listen to this story

Hear this and more stories in a personalized audio briefing.

Open The Chonkerton