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Basic Calculator in C Language Basic Calculator using C Language 🧮 Leave a Comment / Programming / By mismail78p@gmail.com Below is the complete code for a **Basic Calculator** in C. This program can perform Addition, Subtraction, Multiplication, and Division. To compile & play with it online use link: Programiz C Online Compiler #include <stdio.h> int

Arduino UNO: Temperature Sensor (LM35) Arduino UNO: Temperature Sensor with LM35 🌡️🔌 Level: Beginner – Requires simple code. 🧰 Components Required: 1 x Arduino UNO 1 x LM35 Temperature Sensor Breadboard Jumper Wires 🔌 Circuit Connection: LM35 Pin 1 (VCC) → connect to Arduino 5V LM35 Pin 2 (Vout) → connect to Arduino A0 LM35

Arduino UNO: Buzzer ON with 3.3V Arduino UNO: Buzzer Sounds with 3.3V and GND 🔋🎵 Level: Super Beginner – No code needed! 🧰 Components Required: 1 x Arduino UNO 1 x Buzzer (Piezo or simple) Breadboard Jumper Wires 🔌 Circuit Connection: Positive pin (+) of buzzer → connect to Arduino UNO 3.3V pin Negative pin

Arduino UNO: LED ON with 3.3V Arduino UNO: LED Lights Up with 3.3V and GND 🔋💡 Level: Super Beginner – No code needed! 🧰 Components Required: 1 x Arduino UNO 1 x LED (any color) 1 x 220-ohm Resistor Breadboard Jumper Wires 🔌 Circuit Connection: Big leg (positive) of LED → connect to one side

🕌 Masjid Sensor Project with Arduino This project uses an Arduino Uno and an ultrasonic sensor to detect when someone enters or exits the masjid. When triggered, it plays the appropriate dua (supplication) using a speaker and DFPlayer Mini. 📷 Circuit Diagram 📦 Components Used: Arduino Uno HC-SR04 Ultrasonic Sensor DFPlayer Mini MP3 Module MicroSD