M5Stack Nightscout Monitor

Firmware

Keep glucose readings visible on an M5Stack screen

This firmware turns a supported M5Stack board into a glucose display with visual and sound alerts. It reads your Nightscout site, Dexcom Share or a LibreLinkUp follower account over Wi-Fi; the sensor still needs its existing collector.

Build and flash it with the documented Arduino libraries, then put its configuration on a FAT32 microSD card. Passwords are stored in plain text on that card. Board and firmware choices matter, and this is an extra display rather than a replacement for the official glucose app.