Simple Arduino Project for beginners😊

Video post on LinkedIn: https://www.linkedin.com/posts/ilyalo_define-define-arduino-activity-7210206992634687488-UqO2/

What do we need: ✅ 1) Arduino IDE

Setting up: Tools -> Board -> SET AS -> Arduino Nano Processor should be -> ATmega328P(old Bootloader)

✅2) HC-SR04- Ultrasonic Range Finder ✅3) Arduino Nano ✅4) Arduino Breadboard ✅5) LED Patterns

🔥🔥🔥 The HC-SR04 Ultrasonic Sensor is a still popular choice for measuring distance in robotics. With the ability to measure distances up to 400 cm, this sensor provides accurate readings that are displayed in the Arduino port monitor in centimeters.

🧠🧠 Let's break the idea how does it work? The magic lies in sound waves. The sensor's transmitter emits sound pulses at a frequency higher than 20 kHz, which is beyond the range of human hearing (Human infants can actually hear frequencies slightly higher than 20 kHz, but lose some high-frequency sensitivity as they mature, the upper limit in average adults is often closer to 15–17 kHz). These ultrasonic waves travel through the air, and when they encounter a solid object, they bounce back towards the sensor. The receiver then picks up these reflected waves.

By calculating the time it takes for the sound waves to travel to the object and back, the sensor can determine the distance with a good accuracy.