All About Make a Car Parking Sensor Using Arduino

All About Make a Car Parking Sensor Using Arduino

In today’s fast-paced world, navigating busy roads and finding suitable parking spots can be a daunting task for drivers. This is where car parking sensors come into play. These small devices use technology to help drivers safely maneuver their vehicles into parking spots. In this article, we will be discussing how to make a car parking sensor using Arduino, a popular open-source electronics platform. With step-by-step instructions and a list of required materials, you will learn how to create your own parking sensor and add a useful feature to your vehicle. So, let’s dive into the world of Arduino and explore the process of making a car parking sensor.

How to Make a Car Parking Sensor Using Arduino?

In today’s busy world, parking spaces are becoming more and more scarce. It can be frustrating to drive around aimlessly, searching for an available parking spot. This is where a car parking sensor comes in handy. In this tutorial, we will show you how to make a car parking sensor using Arduino, so you can easily find a parking spot without the hassle.

Materials needed:
– Arduino
– Ultrasonic sensor (HC-SR04)
– Breadboard
– Jumper wires
– LED lights
– Resistor (220 ohms)
– Buzzer
– USB cable
– Computer

Step 1: Gathering Components and Setting Up Arduino
First, gather all the materials needed for this project. This includes the ultrasonic sensor, breadboard, jumper wires, LED lights, resistor, and buzzer. Make sure you have an Arduino board and the necessary software installed on your computer.

Step 2: Connecting Components to Arduino
Next, connect the components to the Arduino board. The ultrasonic sensor has four pins: VCC, GND, TRIG, and ECHO. Connect the VCC pin to 5V on the Arduino, the GND pin to GND, the TRIG pin to digital pin 11 and the ECHO pin to digital pin 12. Connect the LED lights to digital pins 2, 3, 4, and 5, and the buzzer to digital pin 7. Use the resistor to connect each LED to GND, so they don’t burn out.

Step 3: Writing the Code
Now it’s time to write the code for the car parking sensor. Open the Arduino IDE and create a new sketch. Name it as “Car_Parking_Sensor”. Copy and paste the following code:


#define TRIGGER_PIN 11
#define ECHO_PIN 12
#define MAX_DISTANCE 400
#define LED_LEFT 2
#define LED_MID_LEFT 3
#define LED_MID_RIGHT 4
#define LED_RIGHT 5
#define BUZZER 7

void setup() {
// put your setup code here, to run once:

void loop() {
// put your main code here, to run repeatedly:
unsigned int cm = sonar.ping_cm();

if (cm < 30) { tone(BUZZER, 440); digitalWrite(LED_LEFT, HIGH); digitalWrite(LED_MID_LEFT, HIGH); digitalWrite(LED_MID_RIGHT, HIGH); digitalWrite(LED_RIGHT, HIGH); Serial.print("Parking Spot Taken"); } else { noTone(BUZZER); digitalWrite(LED_LEFT, LOW); digitalWrite(LED_MID_LEFT, LOW); digitalWrite(LED_MID_RIGHT, LOW); digitalWrite(LED_RIGHT, LOW); Serial.print("Parking Spot Available"); } delay(100); } Step 4: Uploading the Code After writing the code, you need to upload it to the Arduino board. Connect the USB cable to the Arduino and your computer. Select the correct board and port from the "Tools" menu in the Arduino IDE. Then click on the "Upload" button.

How to Set Up a Car Parking Sensor in Your Car?

Have you ever struggled with parking your car in tight spots or reversing into a parking spot? It can be frustrating and even dangerous if you can’t see the obstacles behind you. This is where a car parking sensor comes in handy. A car parking sensor, also known as a backup sensor, is a device that helps drivers detect obstacles while backing up or parking their car.

In this blog post, we will guide you through the steps on how to set up a car parking sensor in your car.

Step 1: Gather the necessary tools
Before starting the installation, make sure you have all the necessary tools. These might include a drill, drill bit, screwdriver, electrical tape, and wire strippers. You will also need to have your car manual handy in case you need to locate certain parts of your vehicle.

Step 2: Choose the type of parking sensor system
There are two types of parking sensor systems – electromagnetic and ultrasonic. Electromagnetic sensors use magnetic fields to detect objects, while ultrasonic sensors use sound waves. Both systems have their pros and cons, so choose the one that suits your needs and budget.

Step 3: Find the perfect location
The ideal location for installing your parking sensor is at the rear of your vehicle, near the bumper. This will give you the best view of obstacles while backing up. Refer to your car manual to find the perfect spot for installation.

Step 4: Mount the sensors
Using a drill and a drill bit, create a hole in the designated area for each sensor. Then, insert the sensors into the holes and secure them in place with the provided screws. Make sure the sensors are aligned and facing downwards for optimal performance.

Step 5: Connect the wiring
Connect the sensors to the control module using the wiring harness provided in the kit. You may need to use wire strippers to connect the wires correctly. Secure the connections with electrical tape to prevent any damage.

Step 6: Install the display unit
The display unit is the device that will alert you when an obstacle is detected. It can be mounted on your dashboard or windshield using suction cups. Make sure it is within your reach and in a visible location.

Step 7: Test the system
Before finishing the installation, it’s important to test the system to ensure everything is working correctly. Start your car and put it in reverse. The display unit should turn on, and you should hear a beep or see a visual indication when an obstacle is detected. If everything works as expected, you can proceed to the next step.

Step 8: Secure the wires and clean up
Secure the wiring using zip ties and make sure they are not hanging loose. This will prevent any damage or interference while driving. After that, clean up any debris or excess wiring that might be lying around.

Congratulations, you have successfully installed a car parking sensor in your vehicle! With this device, parking and reversing will be much easier and safer for you.

In conclusion, installing a car parking sensor can be relatively easy with the right tools and knowledge. However, if you are not confident in your DIY skills, it’s always best to seek professional help. Driving with a parking sensor can give you peace of mind and improve your overall driving experience.


In conclusion, making a car parking sensor using Arduino is a cost-effective and fun DIY project that can significantly improve driving experience. With the step-by-step instructions and simple coding, anyone can create their own parking sensor using readily available materials. Not only does it enhance safety and convenience during parking, but it also allows for customization and further improvements. With the continuous advancements in technology, the possibilities for incorporating Arduino in various projects are endless. So, why not give it a try and make your own car parking sensor today?

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