Arduino Radar System | LED Distance Indicator with Proximity Alert #arduino #arduinoproject

​🛠️ Connection Details (Circuit Guide)
​1. Ultrasonic Sensor (HC-SR04):
​VCC ➡️ Arduino 5V
​GND ➡️ Arduino GND
​Trig ➡️ Digital Pin 12
​Echo ➡️ Digital Pin 11

​2. LED Setup (10 LEDs):
​Connect the Longer leg (Anode +) of each LED to a 220-ohm resistor, and then connect each resistor to Arduino Digital Pins: 2, 3, 4, 5, 6, 7, 8, 9, 10, and 13.
​Connect the Shorter leg (Cathode -) of all LEDs directly to the Arduino GND rail.

​3. Power:
​Connect the Arduino Uno to your PC/Laptop via USB cable to upload the code and power the system.

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