Infrared Receiver¶
IR Receiver¶
S: Signal output
+: VCC
-: GND
SL838 is a small receiver for infrared remote control systems. It contains high speed and high sensitivity photodiode and preamplifier, and is packaged with epoxy resin to form infrared filter, Its main advantage is that it hasreliable function even in the disturbed environment.
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¶
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
Infrared Receiver (Basic Project)
GAME - Guess Number (Fun Project)