LDR Sensor, LED Light, IR Sensor, 5V Realy, DC Motor, 9V HW Battery, 7 Segment Display, Flame Sensor, Buzzer, Ultrasonic Sensor, RGB LED, Servo Motor, Rain Sensor, Door Lock, Stepper Motor, L298n Driver, Push Button, Jumpers.
1. Street Light Automation
Automated Street Lighting System will automatically switch the street light ON and OFF based on the amount of sunlight present using the LDR sensor. By this technique power wastage will
get reduced. Key Words: LDR sensor, LED's, Raspberry Pi.
2. IR with Motor
IR with Motor is if any obstacle in front of IR sensor it will detect and motor will be Turn ON. By this technique automatic door open. Key Words: IR Sensor, Relay, 9V Battery, DC Motor.
3. Seven Segment Display
We are going to do Raspberry Pi 7 segment display interfacing. Seven Segment displays are the cheapest for a display unit. A couple of these segments stacked together could be used to display temperature, counter value etc. We will connect the 7 segment display unit to GPIO of PI and control them to display digits accordingly. After that we will write a program in PYTHON for seven segment display to counts from 0-9 and resets itself to zero.
4. Fire Alarm
The embedded systems used to develop this fire alarm system are Raspberry Pi. The key feature of the system is the ability to an alert when a fire is detected. When the presence of smoke is detected, the Buzzer will be ON.
5. Ultrasonic Distance Measurement
Ultrasonic Distance Meter Using Raspberry Pi 3. Ultrasonic ranging module HC-SR04 provides 2cm to 400cm non-contact distance measurement range. Its accuracy can reach ±3mm with a cycle period of 50ms, which is the minimum time delay recommended before measurements are taken.
6. Ultrasonic sonar/Radar Monitor project
Ultrasonic ranging module HC-SR04 provides 2cm to 400cm non- contact distance measurement range. Its accuracy can reach ±3mm with a cycle period of 50ms, which is the minimum time delay recommended before measurements are taken. If any obstacle in front of ultrasonic sensor the distance is less than 20cm Buzzer will be ON.
7. Traffic Light Control
Here the Raspberry pi 3B+ is interfaced with IR Sensor to detect the vehicles, Camera to capture the vehicles on the road and the Motor which is connected to IR sensor used to avoid the vehicles crossing the road during red light. … pi, the vehicle count is measured and accordingly the traffic will be reduced.
8. LED Blinking
In this tutorial of PI series, we will understand the concept of writing and executing programs on PYTHON. We will start with Blink LED using Raspberry Pi. Blinky is done by connecting an LED to one of GPIO pins of PI and turning it ON and OFF.
9. RGB LED
In this tutorial, we're going to be using an RGB LED. The R, G, and B stand for red, green, and blue, respectively, and the single RGB LED actually contains three LEDs within the single bulb. These are the primary colors for light; that is, you can theoretically create any color of light using some combination of these three. Mixing pure red with pure blue will result in magenta, blue and green in cyan, while red and green make yellow and all three make white. Different hues can be made by mixing different intensities of the three primary colors. In reality, we will find that honing in on a particular hue with the Pi will take a bit of finessing and might not always work.
10. Rain Sensing automatic wiper
Today’s car wipers are manual systems that work on the principle of manual switching. So here we propose an automatic wiper system that automatically switches ON on detecting rain and stops when rain stops.
11. Automatic street light intensity
In this project, I will show you how to design and build a simple but effective circuit called Auto Intensity Control of Street Lights using Raspberry Pi. Since the concept of this project is to consumption of energy, using LEDs as the Street Lights would be the obvious choice.
12. Automatic controller for Window curtain Opener and closer
This circuit will open and close the curtain of your home and office just by pushing a switch. So with the help of this unique circuit, we do not need to move from one place to open and close the curtain. This circuit is used for household use, particularly for smaller doors and windows. Due to its small size and readily available components, it can be effortlessly fixed with a curtain.
13. LED Brightness control using PWM
Python programming in Raspberry Pi, which you can control the LED Brightness using PWM on the GPIO Pins. As Raspberry Pi beginners you will learn how to use PWM for the GPIO pins of Raspberry Pi, This project makes you control the LED Brightness using PWM by increasing and decreasing the Brightness of a LED.
14. Automatic Door Release
No matter what the automatic means of smoke/fire detection you use, the release of one or more smoke doors is usually accomplished through an electromechanical device that holds the doors open until smoke is detected. When detection occurs, the result is the mechanical or electromagnetic release of the door(s).
15. Speed control of dc motor using PWM Raspberry Pi
Pulse Width Modulation (or PWM) is a technique for controlling power. We use it here to control the amount of power going to the motor and hence how fast it spins. The diagram below shows the signal from the PWM pin of the Raspberry Pi. Every 1/500 of a second, the PWM output will produce a pulse.