The TSOP0038 is an infrared receiver tuned to receive IR of frequency 38 kHz only. It is perfect for making obstacle sensors and reading signals from most IR remotes(TV, AC, Home Theatre Remotes, etc). When used as a receiver in distance sensors, it provides better performance as it allows better reception and protection from ambient light compared to other IR receivers. It can be used to read signals of most IR Remotes. Libraries are available for all popular microcontrollers, Arduino and Raspberry Pi to read the button pressed on the remote. Great receiver for making wireless projects, robots, home automation systems, etc

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