Sensors

LDR (light sensor)

Low resistance in light, high in the dark. Click it to cover it.

Family: Sensors
Terminals: end (right), end (left)
On the workspace: Click to cover or uncover

Try it on the 3D workspace Reserve a kit

Press the block to see it work.

Sensors blocks

Sensor blocks react to the world: light, infrared and magnets. Put one on a transistor's base and the circuit responds to what the sensor sees.

Circuits that use this block

Next stepA circuit that craves lightThe LED lights in daylight and turns off when you cover the light sensor.

Other blocks in this family