Production Project: Smart Environment Monitor
Plan a complete sensor node with requirements, power budget, enclosure, testing and documentation.
◷ 120 minParts and tools
- Pico or ESP32
- Temperature/humidity sensor
- Display
- Regulated power supply
Lesson
Learning objective
Plan a complete sensor node with requirements, power budget, enclosure, testing and documentation.
Procedure
- Review the circuit and confirm the board voltage.
- Build and inspect the wiring before applying power.
- Upload the example, observe the result and record your readings.
- Change one parameter, predict the result and test again.
Troubleshooting
Check power, ground, pin selection, polarity, compiler target and serial output. Use a multimeter or logic analyser where appropriate.
Example code
// Build in stages: sensor test, display test,
// integration, fault handling, calibration and burn-in.Knowledge check
What should happen before full integration?