Soil moisture monitoring station
A self-powered station that measures moisture at three depths and tells farmers when to irrigate.
- In production
- IoT
- Embedded
- Data
Connected alert beacon
A one-button device that sends its wearer’s position to a mobile app.
- Prototype
- Client project
- IoT
- Embedded
- Mobile
- Client
- Mairie d’exemple
- Role
- Firmware and mobile app
- Year
- 2025
Context
Fictional project, named with the client’s consent, so the client name is shown.
Solution
A long press sends the position over LTE-M; the app notifies relatives.
Technical sheet
| Feature | Value |
|---|---|
| Microcontroller | ESP32-C3 |
| Positioning | Multi-constellation GNSS |
| Connectivity | LTE-M with SMS fallback |
| App | Flutter (Android, iOS) |
Architecture diagram
Hardware
| Component | Role | Quantity |
|---|---|---|
| ESP32-C3-MINI-1 | Processing unit | 1 |
| SIM7080G | LTE-M modem and GNSS | 1 |
| Batterie Li-ion 1200 mAh | Power | 1 |
Stack
- ESP32 (C/C++)
- Flutter
- MQTT
Links
Related projects
Leak detection from vibration
Experiment: an accelerometer and a tiny on-device model to spot a leak on a pipe.
- Concept
- AI
- Embedded