As you continue to explore Arduino projects (and Raspberry Pi projects in other courses) you'll come across lots of styles of circuit diagrams. Occasionally you'll see the terms circuit diagram and ...

Sound Sensor with Arduino UNO – Connection Diagram Now that we have a complete understanding of how a Sound sensor works, we can connect all the required wires to Arduino as shown below. Connecting ...

The Power Supply schematic includes a 5vdc Sensor regulator. This reduces the load (and heat generated) on the Arduino on-board linear regulator, and also allows more effective input protection by ...

Learn to build an RFID based attendance system using Arduino with step-by-step instructions, circuit diagrams, and complete code. This $35 DIY project replaces expensive commercial systems with ...