Skip to content
- knock sensor (easy)
- ultraviolet pen with LED lights reading hidden messages
- LED Throwies
- Vibrating toy – rip apart an old toy and let it move
- LED Eyes in a robot – Cylon or KIT
- Light sensor and alarm for fridge or lunch box
- Joystick for Scratch game
- Lie detector – thermistator
- Room motion detector
- Check if door is open
- room temperature
- floor sensor (for a jumping game)
- fan
- Buzzer making music
- tilt sensor on skateboard or board for balancing game
- light comes on when someone visits brooklyn website
- Sound sensor – electret microphone
