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MaiTech 1-CH 5V Infrared Remote Relay Module - Deep Blue
LED light on if wired correctly£¬ and module works properly after 5s£¬ relay works too; Relay on / off by pressing S1 and indicator will on or off too; Relay will shift to on / off by pressing IR remote control after successfully learned£¬ and the indicator light will on or off. Remote control learning: There are two methods of operation: 1£¬ Press and hold S1 button for 5 seconds£¬ the indicator LED1 turns on£¬ and get into the learning state; Then release the button S1£¬ and press the remote control button£¬ the indicator flashes which means that learning has been successful. 2. The infrared receiver with the remote control at the module£¬ press any key on the remote control for 10 seconds£¬ the indicator LED 1 brighten£¬ it means entering learning state£¬ and then press the remote control button£¬ the indicator flashes£¬ which means that learning has been successful (long press LED 1 to cancel learning state or auto exit by waiting for 30 seconds); Note: The vast majority of home appliances remote control can be studied to identify£¬ not including non-38KHz remote control of air conditioning.