How to use rf remote control vibrator call / remind someone?

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How to Use an External Limit Switch with a Linear Actuator

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An  external limit switch  is a very handy and cost effective means of controlling the travel of a  linear actuator . Here we will go over how to use an external limit switch with a linear actuator. Most electric linear actuators are made with built-in limit switches. This means you are able to adjust the travel of the stroke to your precise desired position. Not all linear actuators are built limit switches. So what do you do when the linear actuators stroke is longer than you need? Installing an external limit switch is the simplest and most affordable method to control the travel in electric linear actuators where the limit switch is either non-adjustable or non-existent. There are three ways to control the stroke: Limit extension Limit retraction Limit both extension and retraction What is a Built-In Linear Actuator Limit Switch? All our linear actuators have internal limit switches at the fully extended and retracted positions. These limit switches ensure that when ...
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What is Toggle / Momentary / Latched 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. You need to press and hold the button of remote to make the blind or door open/close. 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. Information from: htt...
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Waterproof 2 Channel 12V Toggle Remote Control Module

A brand new 2 channel 12V toggle remote control kit (S2RX-DC12 & C-2) is promoting now. The receiver is installed in a black waterproof case. Six colors‘ wires are connected inside terminals of the receiver. Wires are bound together and stuffed in black connection wire.The connection wire outside of the case is 20 cm. Wireless control 12V electronics including lights, LEDs, relays, dc motors and other low current devices.You can control receiver with transmitter (remote control) from any place within a reliable distance; the wireless RF signal can pass through walls, floors and doors. This video aims to show you how to control 2 led lamps. Wires: Red    =  Input +12V Black  =  Input Ground (-) Yellow =  Output 1 +12V Brown  =  Output 1 Ground (-) Blue   =  Output 2 +12V Green  =  Output 2 Ground (-)
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