Receiver and IR transmitter LiteOn 940nm (pair) - SparkFun SEN-00241*

The IR transmitter, sending the wave with the length of 940 nm together with the receiver in the form of NPN phototransistor, they can be used as a simple, reflective distance sensors with analog output.

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Price 5,50 zł


The set includes a pair - transmitter and receiver of light from the IR range with a wavelength of 940 nm. The transmitter's system should include sequentially, the resistor limiting the current up to 50 mA. The emitter assembled this way, sends a signal which is received through the detector in the form of the NPN phototransistor with the resistor  pulling-up the output to the supply voltage. Example of wiring and maintenance can be found in the diagram or in the video below.



Systems can be used as a simple, reflective distance sensors with analog output, connected for example to a module of Arduino Uno.


The transmitter was highlighted with the yellow dot in the upper part of the system, receiver with the red dot.


  • Voltage to 4.5 V
  • Voltage from 5.5 V
  • Interface analog
  • Sensor - distance to 0.5 cm
  • Sensor - distance from 0 cm


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The table presents available forms of delivery in Poland


Carrier and

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by cash


Poczta Polska

terms of service

9,90 PLN17,90 PLN1-3 days

Kurier GLS

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14,90 PLN22,90 PLN

1-2 days

Paczkomaty 24/7 

terms of service

12,90 PLN-1-3 days

If the amount to pay for products exceeds 500 PLN
Delivery is for free!


  • Free delivery of orders over 500 PLN does not apply to parcels addressed outside of Poland.
  • Free delivery does not apply when changing orders.
  • The delivery period is counted in working days from the date of dispatch of the order.