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Wireless control of air conditioner by detecting the opening and closing of windows

Posted by CaryRS on

Working Principle: This wireless remote control system (model 0020524) consists of a remote control (CB-2N) and a receiver (S1PU-DC). You can use this transmitter and the receiver to remotely control a device by the normally open contact of another device. Such as sensor automatic control system. You can connect a sensor to this transmitter and connect an AC or DC device to the receiver, then the device will automatically turn on or off through the sensor. When the sensor is activated, the transmitter automatically emits a wireless signal ON. When the receiver receives this wireless signal, it will activate its...

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How to select relays and transistors as switching elements?

Posted by CaryRS on

Relays and transistors are the two most common electrically actuated switches used in electronics; however, they are not perfect replacements for each other. Relays and Transistors Unique Characteristics Relays and transistors are multi-terminal devices that provide switching functions. In both components, switching is actuated by applying an electrical voltage/current, but the exact mechanism by which current is allowed to flow through the switch is different in relays and transistors. Relay switching: A relay is a mechanical switch triggered by using an electric current to generate a magnetic field near an armature. A magnetic field is generated in a coil, which...

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What is a Dry Contact?

Posted by CaryRS on

A dry contact (also known as a volt free contact or potential-free contact) is defined as a contact in which power/voltage is not directly provided from the switch but is instead always being supplied by another source. Dry contacts are known as passive contacts, as no energy is applied to the contacts. Dry contact simply operates like an ordinary switch that opens or closes the circuit. When the contacts are closed the current flows through the contacts and when the contacts are opened no current flows through the contacts. It can be referred to as the secondary sets of contacts...

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How to use the 5000 meters long range normally open dry contact triggered wireless remote control switch ?

Posted by CaryRS on

This receiver is a super long range remote switch. It is developed by LORA (Long Range) wireless communication technology, so it has ultra-long working distance, ultra-high receiving sensitivity, superior anti-interference ability, and smaller power consumption. It uses a transceiver chip to implement bidirectional communication, with a transmitter CC-2N to form a wireless control system. Its ideal working distance is up to 5 kilometers, which is an excellent device for remote control and long-distance communication. This transmitter CC-2N is a special long range remote control with normally open contact trigger, and it can be triggered by a dry contact instead of...

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What is a remote control socket?

Posted by CaryRS on

Remote control socket claims again power socket and switch socket, refers to the insertable seat of one or more circuit connections, can insert various wiring by it, is convenient to connect with other circuits. The power socket is an electrical device that provides a power interface for household appliances. It is also an electrical accessory that is used more in residential electrical design. Remote control sockets are generally divided into two types, one is wireless socket and the other is infrared socket. infrared socket Infrared is a wireless communication method that can transmit wireless data. Since its invention in 1974,...

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