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IR Receiver¶

IR Receiver

../_images/ir_receiver_sl838.png

  • S: Signal output

  • -: GND

  • +: power supply, 3.3v~5V

SL838 infrared-receiver is a component which receives infrared signals and can independently receive infrared rays and output signals compatible with TTL level. It is similar with a normal plastic-packaged transistor in size and is suitable for all kinds of infrared remote control and infrared transmission.

Infrared, or IR, communication is a popular, low-cost, easy-to-use wireless communication technology. Infrared light has a slightly longer wavelength than visible light, so it is imperceptible to the human eye - ideal for wireless communication. A common modulation scheme for infrared communication is 38KHz modulation.

  • Can be used for remote control

  • Wide operating voltage: 2.7~5V

  • Internal filter for PCM frequency

  • TTL and CMOS compatibility

  • Strong anti-interference ability

  • Compliant RoHS

Remote Control

../_images/image186.jpeg

This is a Mini thin infrared wireless remote control with 21 function buttons and a transmitting distance of up to 8 meters, which is suitable for operating a wide range of devices in a kid’s room.

  • Size: 85x39x6mm

  • Remote control range: 8-10m

  • Battery: 3V button type lithium manganese battery

  • Infrared carrier frequency: 38KHz

  • Surface paste material: 0.125mm PET

  • Effective life: more than 20,000 times

Example