A seatpost sensor and companion app that scores how rough every street you ride is, then draws it on a map you can act on.
A small LoRa hardware beacon and companion app that lets hiking or hunting groups share location and status pings with zero cell signal.
An ESP32-powered desk light that glows red, yellow, or green based on your team's live build status, so nobody has to alt-tab to check CI.
A bedroom sensor node that logs temperature, humidity, CO2, light, and noise overnight, then correlates conditions against your sleep tracker's score.
An ESP32-CAM sensor that watches your mail slot or porch, classifies deliveries versus junk mail with a small vision model, and pushes a notification only when it matters.
An ESP32-powered e-ink display that shows today's calendar, weather, and a single priority task, refreshed a few times a day with zero phone pickups.
An ESP32-based inline USB-C monitor that logs real-time voltage, current, and wattage to a local web dashboard — useful for auditing chargers and understanding device charging behavior.
A cheap ESP32 and capacitive moisture sensor that logs soil conditions to a self-hosted dashboard and sends push alerts when your plants need watering.
A $4 ESP32 board that passively scans for your phone via Bluetooth and publishes room occupancy to a local MQTT broker — no cloud, no camera, no app.
A sub-$40 ESP32 sensor kit paired with a self-hosted web dashboard to track CO2, particulates, and VOCs in your home — no cloud account required.