tutorials, field notes, and posts from the team. each one ships with working code you can copy, run, and break.
wire a $5 ESP32 + a $4 BME280, flash one sketch, get a slack message when temperature crosses 35°C. ~15 minutes from open-the-box to alert-in-channel.
rolling z-score on a plexus telemetry stream. extends week 1's ESP32 setup. ~75 lines of python, no ML — alert when a sensor sits 3σ off baseline for 3 ticks in a row.
a $35 raspberry pi running mosquitto and a 40-line python bridge, two ESP32s publishing temperature over MQTT, everything landing in plexus as separate sources. ~30 minutes.