1. What you will build
Build a temperature control system with LCD display and automatic fan control.
Guided tutorial
Smart Thermostat
Build a temperature control system with LCD display and automatic fan control.
intermediate · 25 Sept 2026
Difficulty
intermediate
Learning complexity
Sections
6
Structured content blocks
Topics
9
Linked learning concepts
Related links
6
Next steps and references
2. Wire DHT22
Connect temperature/humidity sensor to pin 2.
3. Add LDR
Add light sensor on A0 for brightness measurement.
4. Setup LCD
Display all readings in a cycling format.
5. LED Bar
Use LED bar graph to show current temperature visually.
6. Data Logging
Send all readings to Serial for computer logging.
FAQ
Can I try Smart Thermostat in the simulator?
Yes. Use the Open in Lab action to load the guided build in the browser-based simulator.
Next step
Open this tutorial in the lab
Load the guided build in Ayantrik Lab and follow the same components and steps inside the simulator.