Using this simple wireless switch circuit you can avoid the dangers of having physical contact with the switches. In this project we are going to show you how to make a wireless circuit using ldr lm741op amp ic and 4017 decade counter ic.
Relay Electrical Switches Remote Controls Wireless Light
Wireless light switch circuit. The basic wireless light switch kit includes a rf radio frequency transmitter that is powered by the press of the switch and can be surface mounted with screws or adhesive. Worked first time and even after turning off breaker multiple times the switch and receiver remained paired. The included receiver is wired between the light fixture and the power source. Installed wireless switch on a closet ceiling pull chain light a couple days ago. As the wiring could be confusing to more than a few took a. Two easy steps for installation.
Current consumption is. This wireless light switch is very stable and sensitive compared to other ac appliance control circuits. Circuit design of wireless switch. The ir rays transmitted by ir led1 is detected by the phototransistor to activate the hidden lock flush system hand dryer etc. This transmitter sends wireless signals that command the receiver to turn a device off or on. Wire the 3 wire relay receiver to your light or fan and mount the switch to a surface screw in or adhesive or.
A wireless light switch is a light switch that commands a light or home appliance to turn itself off or on instead of interrupting the power line going to the light fixture. Ca3140 operational amplifier 1 photo transistor l14f1 1 ir led 1 component description. Watched a chinese installation video on youtube and it was not that helpful due to extra wires used in the demonstration not to mention i dont speak chinese. A radio receiver is typically wired or screwed into a fixture or device wired or otherwise connected to the electrical system of the building or plugged into an outlet. In this circuit all you need is to pass your hand above a simple light sensor the. The radio receivers memory is programmed by any.
When you take your hand over the ldr first time the light will turn on and when you take your hand over the ldr second time the light will turn off. We know that. The wireless light switch circuit described here requires no physical contact for operating the appliance. So today we are building a simple wireless switch circuit in which there is no need of physical contact with the switch just one has to take his hand over the switch and it turns onoff the light. You just need to move your hand between the infrared led ir led1 and the phototransistor t1. There are different ways to communicate between the switch and the fixture.
It is simple compact and cheap. Circuit principle the main principle of this wireless switch circuit is in the functioning of ldr lm741 op amp and a cd4027 jk flip flop ic. Wireless light switch circuit diagram. It is a bimos operational amplifier that combines the features of bipolar and mos technologies. The supplied block diagram in the acegoo package instructions was more helpful.
Gallery of Wireless Light Switch Circuit
