Indoor Motion Sensor Light Switch


A motion sensor light switch differs from the traditional light switch in many ways, right from its usage to reliability and safety. The most fundamental use of a motion sensor light and switches is it detects the movement of the individual and automatically turn on and off the light. It monitors the presence of an individual by different techniques, which we will read in the next paragraph. But, now the motion sensor for lighting control devices become more reliable, common and affordable, and can be used in our day to day life. Indoor motion sensor light switch also comes with a range and sensitivity adjustment.

In order to properly detect the presence of a human being or any living thing inside a room, the motion sensor can take advantage of several types of technologies. it can be a sensor which measures the infrared radiation (PIR sensor – Passive InfraRed sensor). As everything emits a certain level of IR radiation, this IR radiation is more in case of living things like human being and animals. So, it is quite easy to sense it using these PIR Sensors. Automatic motion sensor lights basically detect the major difference of IR radiation emitted when a person passes through the sensor. Many motion sensors for lighting also uses the ultrasonic technology in order to detect the changes near him.

Since we are in 2018 and the concept of a smart home is intended worldwide. Everybody wants to go smart in every field so, why not to start with smart switches. Many smart light switches are now getting connected with smartphones and WiFi routers/hubs using WiFi so that they can be controlled over the Internet from anywhere on this globe (wifi motion sensor light). The indoor motion sensor switch wiring is also very simple and straight anybody can connect it. Any person can very easily connect it himself in his home. So, things are getting changed and you also need to change. Go for these motion controlled light switch, voice-controlled switch, wifi enabled switch at an affordable price below.

Now coming to the advantages of these smart switches.

  • Your electricity bill is definitely going to reduce.
  • Safety for your children. As there is always a risk of getting an electric shock while switching off the light with your hands. And when you use the smart switch you need not to touch the on-off switch with your wet hands.
  • Smart approach. Your guest and family members will definitely like it.
  • If you are using a wifi compatible switch, you can control it from a remote place. Suppose you forget to switch off the lights of your bathroom. You can do it from your office also.
  • Can be voice controlled using Alexa or Google home devices.
  • Android and IOS apps are also available to control the switch using smartphones.

Now coming to my motion controlled light switch. I am using it in my bathroom for the last 6 months and it is performing great till now. It is a self-customized smart switch having a PIR sensor. First of all, I will show you how it looks?

pir motion sensor


As you can see the sensor is only visible outside so that it can sense the presence of an individual. This the picture of interior motion activated light switch installed in my bathroom. This automatic motion controlled light switch utility suits best for the bathroom. As we need light in our bathroom even in daytime. If you will install this switch in your balcony then during the daytime also when you visit your balcony the light will glow. Which is the wastage of electricity. So, it is my advice to use it in the bathroom. It is basically a motion sensor light for bathroom, or the place where you need light every time let it be day or night.

You can also see a video uploaded by me on Youtube, how to install a motion sensing light switch. Here is the link.

How to wire a sensor light?

Motion detector lighting control wiring is very simple. Movement sensor switch uses 12 v DC (in my case) for its working. So, it is having a 12 v adapter connected inside the switchboard. And it has only two wires which go to the manual switch which is already connected in the board to switch the light on and off manually. So after the connection, you can use the automatic sensor as well as manual toggle switch also to operate the bathroom light. Remember to switch off the manual toggle switch in the off position when using smart motion detector (sensor) for operation. Actually, both the switch manual and automatic sensor switch is connected in parallel. It is a simple indoor motion sensor light switch which is very easy to use. You can even use it in outdoor/indoor motion sensor light switch control projects.

How to install a motion sensor light switch?

For complete details of the sensor, its installation and its circuit diagram with components you can go through this video.

If you need to have this small motion sensor switch kindly contact me at [email protected] You will be getting it in approx 10$. It is highly reliable and small in size as you can see how it gets fitted inside the switchboard of my bathroom.