Air temperature and humidity
Click DHT22 while the simulation is running to change its virtual temperature and humidity values.
temperatureC • humidityPct
Project portal
A shared European learning space for smart water and green VET
Explore live simulated sensor data, reproduce the ESP32 workflow, share classroom results for approval, follow project news and contact the partnership.
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Project architecture
IoT → Cloud → Twin
Wokwi ESP32 • Firebase Realtime Database • GitHub Pages • classroom reflection
💧 Smart water
Students interpret water level, temperature, humidity and visual turbidity data in a safe simulation environment.
🌱 Green VET
The learning path connects vocational practice with circularity, sustainability and responsible digital skills.
🧠 Digital twin
A live dashboard mirrors the simulated device state and supports observation, comparison and discussion.
🤝 European cooperation
Partner schools can publish approved activities, news and transferable classroom examples.
Latest project announcements
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Live smart-water digital twin
The cards update when the official Wokwi simulation writes values to Firebase.
Temperature
–
°C
Humidity
–
%
Water level
–
%
Visual turbidity
–
relative index
Status: Waiting for data
Firebase connection is starting…
Water-level history
Temperature history
SMART-DROP • WOKWI QUICK START
Use the sensors in five clear steps
Move from the virtual sensors to Firebase and the live dashboard without changing the shared master.
⚠️ The official Wokwi project is the protected master demo. Run it for observation; select Copy Project or Fork before editing.
↔ Swipe sideways on a phone to follow the steps.
- 01SENSE
Find the three sensors
Locate DHT22 on GPIO 15, the water-level control on GPIO 34 and the turbidity control on GPIO 35.
- 02SIMULATE
Start and move the controls
Press the green Start button. Click the DHT22 or drag the two potentiometers and watch the Serial Monitor.
- 03CONNECT
Confirm the cloud upload
Wait for Wi-Fi connected, Firebase HTTP status: 200 and Upload result: SUCCESS.
- 04DECIDE
Interpret the digital twin
Open the live dashboard and compare temperature, humidity, water level, turbidity and the quality status.
- 05ACT
Experiment in your own copy
Choose Copy Project or Fork, change one variable at a time, then share your link or result for project approval.
What does each virtual sensor do?
Use the names and GPIO numbers below to identify the correct control in Wokwi.
Simulated water level
Drag the water-level potentiometer. The code converts the analog value to a tank level from 0 to 100 percent.
waterLevelRaw → waterLevelPct
Simulated turbidity
Drag the turbidity potentiometer. The code produces a 0–1000 NTU learning value and classifies it as GOOD, MODERATE or POOR.
turbidityRaw → turbidityNtu • waterQuality
✓ Success checkThe terminal must show HTTP 200 and SUCCESS; the dashboard timestamp should then refresh.
Educational safety boundaryThese simulated values support learning and comparison; they are not certified laboratory or drinking-water results.
Local classroom Q&A
The answer will appear here.
Guided visual water estimate
Educational estimate only. This tool does not measure certified water quality, potability or laboratory NTU.
Adjust the three lines, then calculate.
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Website design & technical contact:
sevgibayram84@gmail.com
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