Application environment Remote control switch, receiver module, motorcycles, automobile anti-theft products, home security products, electric doors, shutter doors, windows, remote control socket, remote control LED, remote audio remote control electric doors, garage door remote control, remote control retractable doors, remote volume gate, pan doors, remote control door opener, door closing device control system, remote control curtains, alarm host, alarm, remote control motorcycle remote control electric cars, remote control MP3. Product Description [Receiver module ] Product Model: RX480-E4 Working Voltage : DC3.3~5V Quiescent Current : 5mA Output current : 10 mA Working Frequency: 433MHz Receive Sensitivity: -108dB Receive Distance: 15 meters above Frequency band: 0.2MHz Working Temperature : -25~75 Working mode: Momentary Mode , self-locking (Toggle-Mode of the 4 Channels) , interlocking The output: 4 channel CMOS level signal Corresponding to the remote control ABCD 4 buttons. Pins Instruction GND : ground or negative pole +V : DC3.3~5V input D0: Data output D1: Data output D2: Data output D3: Data output VT: Output Package included:1pcs How To Programming: 1. Delete existing data: Press learning button 8 times (on the receiver. Response: LED flashes 7 times. 2. Learning remote code: press learning key (on the receiver once, twice or three times (see below). LED turns on: learning mode is active. Press any button of the remote control. LED indicator flashes three times: learning successfully completed. 3. Test: after the above operation , the receiver board can be controlled by the remote control . More transmitters with different IDs can be learned and stored additionally, starting with step 2. A mixture of different modes is possible. Button usage (sets mode and starts pairing process): Press once (on the receiver : Inching mode (Momentary Mode) Press twice (on the receiver : self-Lock Mode (Toggle-Mode of the 4 Channels) Press three times (on the receiver : interlocked mode (selected channel active and be cleared, if another channel becomes active) (This instructions is provided by Manfred, thanks to Manfred)