This time, infrared signal transmitter modules will be introduced, in fact, they play an important role in our daily lives. Nowadays such a device is widely used in many household appliances, such as air conditioners, TVs, DVDs, etc. It is based on wireless remote sensing and a kind of remote control, and it is necessary to study its principle and how to use it. Infrared emitter and infrared receiver tubes are devices that directly convert electrical energy into near-infrared light, belonging to the diode class, and the infrared emitter diode sends out a modulated signal.
