Wireless remote control is a device that remotely controls equipment through wireless signals, mainly used to control the lifting and lowering of cranes and other equipment,
infrared remote control
Working principle: Using near-infrared (wavelength of about 940nm) to transmit signals, it is necessary to keep the transmitting end aligned with the receiving end and unable to penetrate obstacles.
Features:
Short transmission distance (usually ≤ 7 meters)
Strong ability to resist electromagnetic interference
Circuit debugging is simple and widely used in household appliances such as televisions and air conditioners.












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