SunFounder ESP32 Starter Kit
5.24 IR Receiver
IR Receiver
• OUT: Signal output
• GND: GND
• VCC: 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 commu-
nication. 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
740 Chapter 5. Learn about the Components in Your Kit
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