The most standard entry into the world of automation is with a smart lighting system. Are the "Internet of Things" and Home Automation just lingos? In this project check out how we can bring home automation onto our finger-tips in our daily routine to make life much easier!
Here we use the Blynk app which is a mobile application designed to control electrical appliances. The article provides step by step instructions involved in this interfacing which is pretty simple, starting from the list of electronic components required.
Apparatus Required:
The list provides all the hardware and software components required for the interfacing are as follows.
Hardware components:
1.LDR Sensor:
This is a cadmium-sulfide cell works based on the principle of Photoconductivity. It is basically a resistor whose resistance value changes depending upon the intensity of light. When the light falls on the surface of the senor, material conductivity varies as a result of which resistance also varies.

Buy the LDR Sensor module from here.
2. Raspberry Pi 3:
We are using #Raspberrypi to connect with the LEDs, the #LDR sensor, and display the output. It contains several I/O pins using which we can connect the module and then by coding the Raspberrypi, we will receive the commands/signals that are sent from the mobile. This powerful credit-card-sized single-board computer can be used for many applications and supersedes the original Raspberry Pi Model.

Buy Raspberry Pi 3B+ from here.
3. Jumper wires:
These are simple connecting electrical wires, that are used to connect the ends without any soldering. The male wires have ends that can be connected to other ends and the female wires are the ones that have the receiving end. Grouping these wires a cable can be formed.

Buy Jumper wires from here.
4. USB Cable:
This USB cable is used to connect the Raspberry Pi to the power supply. It also helps in the transmission of data.

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