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HANDS-ON STEAM PROJECT
Smart Dustbin
Build a touch-free bin-lid demonstration using a distance sensor.
Instructions and Learning Resources
How it works
A distance sensor detects an approaching hand. The controller commands a small servo to lift and close the lid.
Typical parts
Arduino-compatible controller, ultrasonic sensor, servo, low-voltage supply, lightweight bin and connecting wires.
Build outline
- Fit a lightweight hinge and servo horn.
- Position the sensor toward the hand approach area.
- Verify the sensor reading and servo travel independently.
- Combine sensor readings with safe, time-limited servo movement.
Keep moving parts away from fingers and provide appropriate servo power.