How does the ranging sensor measure distance?
The IR transmitter emits infrared light
which is reflected when it hits an
obstacle. The reflected infrared light
is detected by the IR receiver. The
distance between the obstacle and the
block can be calculated by the time lag
between transmission and reception.
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Place your hand over the ranging sensor and gradually
increase the distance of your hand from the sensor.
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More lights will light up on the
LED panel.
The ranging sensor is used to measure the distance between the sensor and an obstacle.
Measurement range: 2cm – 200cm
The ranging sensor includes an IR
transmitter and an IR receiver.
IR transmitter
IR transmitter
IR receiver
IR receiver
Ranging Sensor
Science Tips Have a try!
Press the power button.
Class 1 Laser Product.
This product complies with 21 CFR 1040.10 and 1040.11 except for deviations pursuant to Laser Notice No. 50,
dated June 24, 2007.
Have a try!
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You will notice that the LED panel
becomes dark.
Press the power button.
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Cover the light sensor with your hand.
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The light sensor can detect the intensity of light in the surrounding environment. The stronger the
intensity of the light received by the block, the stronger the output signal will be. An example of this
in everyday life is the brightness of a mobile phone screen. The brightness will automatically change
in response to the ambient light condition, which is credited to a light sensor.
Light Sensor
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