How to Make Automatic Stair Lights Controller

Introduction

Staircase lighting has always been a crucial factor in enhancing the safety and ambiance of your home. However, it can sometimes be inconvenient to have to turn on and off stair lights manually every time you go up or down the stairs. This is where the Automatic Stair Lights Controller comes in. In this article, we will explore how to make this DIY project and all the necessary components you need.

Explanation of Automatic Stair Lights Controller

Arduino Nano

What is Arduino Nano? Arduino Nano is a microcontroller board that comes with the Atmega328P microcontroller chip and has been designed for the prototyping of electronic devices. Arduino Nano is a small-sized board, measuring only 45mm x 18mm, which makes it easy to use and store. It is also affordable, making it one of the most popular boards when it comes to building DIY projects.

ULN2803 IC:

A ULN2803 IC is a high-current transistor array that comes with eight channels. It allows powering up relays, switches, and other high-current peripherals without the need for individual drivers. ULN2803 ICs are used in circuits that require more than eight transistor switches. With high power handling and compatibility with various microcontrollers, it has made it one of the go-to ICs for DIY enthusiasts.

HC-SR04 Ultrasonic Distance Sensor Module:

The HC-SR04 Ultrasonic Distance Sensor Module is a distance-measuring device that uses ultrasonic waves to detect obstacles. It sends out a sound pulse that bounces off an object and returns to the sensor, allowing the module to measure the distance of the object. The HC-SR04 Ultrasonic Distance Sensor Module is a cost-effective solution for distance measurement, making it perfect for DIY enthusiasts.

How to Make Automatic Stair Lights Controller — **Automatic Stair Lights Controller**

Circuit Diagram of Automatic Stair Lights Controller

This project can be designed using a few basic components. The circuit diagram of this project is shown below.

How to Make Automatic Stair Lights Controller Circuit Diagram — **Automatic Stair Lights Controller Circuit Diagram**

How to Make Automatic tair Lights Controller Block Diagram — **Automatic tair Lights Controller Block Diagram**

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Components List of Automatic Stair Lights Controller

Following is the list of all components used in this project:

1 X Arduino Nano
2x HC-SR04 Modules
1 X ULN2803 IC
8X LEDS
8X 100R Resistors
8x 5V Relays
1 X 2 Pin Terminal Block
21x 3 Pin Terminal Block
JUMPER WIRES

Project Zip File:

Gerber File:

Building Project of Automatic Stair Lights Controller

How to Make an Automatic Stair Lights Controller using Arduino Nano?

The Automatic Stair Lights Controller using Arduino Nano is a simple DIY project that requires the above mentioned components.

Step 1: Connecting the HC-SR04 Ultrasonic Distance Sensor Modules:

Connect two HC-SR04 Ultrasonic Distance Sensor Modules; one at the bottom of the stairs, and the other at the top of the stairs using jumper wires as shown in the circuit diagram above.

Step 2: Connecting the Arduino Nano:

Connect the Arduino Nano to the HC-SR04 Ultrasonic Distance Sensor Modules and the ULN2803 IC using jumper wires as shown in the circuit diagram provided above.

Step 3: Connecting the LED’s and Resistors:

Connect the LED’s and resistors to the ULN2803 IC, and ensure that the polarity is correct.

Step 4: Coding:

Using the Arduino IDE, program the Arduino Nano to turn on the LED’s when there is no movement on the stairs, and turn off the LED’s when there is movement detected on the stairs. Link of the project code file is already given above for download.

Step 5: Testing:

Test the circuit to ensure that everything is working correctly. Walk up and down the stairs and observe whether the lights turn on and off accordingly.

Conclusion of Automatic Stair Lights Controller

Building an Automatic Stair Lights Controller using Arduino Nano is a fun and easy DIY project that can enhance the safety and ambiance of your home. The components used in this project, such as the Arduino Nano, ULN2803 IC, and HC-SR04 Ultrasonic Distance Sensor Modules, are affordable and easily accessible, making it perfect for DIY enthusiasts. With some programming skills and a little bit of creativity, you can customize the code and add additional features to the Automatic Stair Lights Controller.

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For more project and circuit diagrams, you can go through the Schematics in the main menu where you can watch many interesting projects and circuit diagrams like audio amplifier circuits, voltage booster circuit, battery charger circuit and timer circuits etc., which are all beginner circuit projects. Feel free to check them out!

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