Introduction: How to Make Mini Radar | Arduino Based

About: Electrical engineer by profession

$2 for 10PCBs (24 Hour Fast Build):

Hello friends in this video I have made a Mini compact Radar with display, for that I have used HC-SR04 ultrasonic sensor, this sensor emit ultrasonic sound which came back to sensor after reflecting from an object,

all the data visualization is displayed on 1.8" ST7735 display, if any object detect by radar it'll show in display in red line.

For this project I have develop a custom made PCB and get it manufactured from

JLCPCB is one of the top leader in PCB manufacturing.

Step 1: Video

Have a look to this complete tutorial video

Step 2: Material Required

There is four main components of this project

Arduino nano is the braing of our project

HC-SR04 is ultrasonic sensor this sensor emit ultrasonic sound waves which human can't listen , this sensor generate some value in proportion to the reflected ultrasonic sound waves from the object, on this we can also tell the distance of object from the sensor.

SG90 micro servo is used to rotate ultrasonic sensor in 180 deg

ST77535 display is our monitor to visualize all data on screen

Arduino nano :-

HC-SR04 ultrasonic sensor :-

SG 90 Servo :-

1.8" ST7735 Dispaly :-

Step 3: Circuit and Code

Code and other details are found on the link

Step 4: 3D Files

Complete 3D files will be available at thingiverse

I have a Tevo Tarantula printer i have printed all parts on dark green PLA at 50 % infill

After printing all the parts or you can design your own model

if you don't have access to a 3D printer then you can use material like acrylic sheet or cardboard sheet.

Do the wiring as shown in circuit drawing and load the code to arduino.

You radar is ready to work if you face any problem please feel free to comment below

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