Infrared Receiver Module
Please note: We now sell a 37 sensors kit that includes this module and many others.
This is an infrared remote control receiver with a built-in demodulator. It demodulates infrared signals based on the common 38kHz carrier frequency that is widely in use by infrared TV/hifi remote controls.
The output is a serial stream corresponding to the remote control data received. You'll need to hook this module up to an Arduino or Raspberry Pi to act on the incoming data.
To use this module to receive remote control data on a Raspberry Pi, see this tutorial: