Ultrasonic alarm system for arduino

Welcome to SIN IoT Project 🔧 SIN = Smart IoT Network We build real-world projects with Arduino, ESP32, and Raspberry Pi. No boring theory. Only hands-on DIY Tech, Robotics, Drones, Smart Home & AI. *What you'll learn here:* ⚡ Arduino Tutorials for Beginners 📡 ESP32 WiFi, Bluetooth & IoT Projects 🥧 Raspberry Pi AI, Automation & Coding 🚁 DIY Drones & Robotics from Scratch *New videos every week.* Subscribe and build smart with us. *Business Inquiries:* [email protected] *Instagram:* @siniotproject #Arduino #ESP32 #RaspberryPi #IoT #DIYTech #robotics code link= 1.10cm Alarm Code: https://dev.to 2. 50cm Security System: https://projecthub.arduino.cc 3. Wiring Diagram: https://howtomechatronics.com