How to Realize the Light Switch Control for TV

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Short Description of Toggle / Momentary / Latched Working Modes

Generally there are three working modes for rf remote controls: toggle, momentary, latched. Toggle mode is used most often. Controlling lamp, for example, press the button of remote, turn on the lamp; press the button again, turn off the lamp. Momentary mode can be set to control rolling blind or rolling door. Press and hold the button of remote, open the blind or door; release the button, close the blind or door. Both toggle and momentary mode are motivated by single relay, which means you can work these two modes with single button remote. As regards the latched mode, it is motivated by relay group. For relay group, only one relay will be on at a time, e.g. press remote button A, relay A will be on, and relay B will be off; press remote button B, relay B will be on, and relay A will be off. To be more specific, when you control the lamp by latched mode, you should prepare at least two buttons remote. Press button A, the lamp is on; press button B, the lamp is off. Online s
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Remote Control Electromagnetic Lock

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Electromagnetic lock is a locking device that consists of an electromagnet and an armature plate. The principle behind an electromagnetic lock is the use of electromagnetism to lock a door when energized. Essentially it consists of an electromagnet attracting a conductor with a force large enough to prevent the door from being opened. That is to say, if only we could cut off power supply and make electromagnet force between electromagnet and armature plate to disappear, the door would be opened. Furthermore, we just try to use a direct dc output momentary remote and one button transmitter to cut off electric power to open the door. The following demonstration will show. At first, we prepare material. The wiring When we supply power to electromagnetic lock, electromagnet will attract armature plate through magnetic force. The door is locked. When we press button, the power supply will be cut off. The door is open as soon as electromagnetic lock unlock instantly. What’s more, t
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How to Make Motor Rotate in Positive and Reverse Direction by High Power Remote Control

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We are going to demonstrate that our 30 A high power remote controller controls high power motor to rotate in positive and reverse direction. This kind of controller is activated by dc 12v power supply with 30 A current output of each relay. It is very favorable for high power device. It also has four working modes including toggle mode, momentary mode, latched mode as well as momentary + toggle mode. First of all, let’s see material preparation. 1 x 2 channel dc high power remote control receiver (S2PU-DC12) 1 x 2-button remote transmitter (C-2) 2 x dc12v power adapters Some lines Secondly, see the wiring diagram below, B is normally open terminal; C is normally closed terminal and A is common terminal. Connect terminal C to the positive and connect terminal B to the negative. Terminal A is supposed to be connected to the motor. Note: The Power supply of receiver and motor must be provided individually in order to avoid interference between them. Switch on the power O
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