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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.com
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 :- https://amzn.to/2Eq3tSK
HC-SR04 ultrasonic sensor :- https://amzn.to/2SEU4vQ
SG 90 Servo :- https://amzn.to/2NG807N
1.8" ST7735 Dispaly :- https://www.aliexpress.com/item/NEW-1-8-inch-4-IO...
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