IoT Lab Experiment 2 | Interfacing SPDT Relay with Arduino | VTU 7th Sem BCS701
In this video, we demonstrate Experiment 2 of the Internet of Things Laboratory (BCS701) for VTU 7th Semester (22 Scheme) — Interfacing an SPDT Relay with Arduino.
🔹 Objective:
To interface and control an SPDT relay using an Arduino, and understand how relays act as electrically operated switches in IoT applications.
🔹 Concepts Covered:
Working of SPDT relay
Relay coil, common (COM), normally open (NO), and normally closed (NC) terminals
Driving a relay using Arduino digital output
Safety precautions while using electromechanical relays
Real-world IoT switching applications (home automation, appliances, etc.)
🔹 Tools Used:
Arduino UNO
SPDT Relay module
Jumper wires
External power source (if required)
👨💻 Code Explanation:
Simple and clean Arduino program to toggle the relay at fixed intervals.
📚 Subject: Internet of Things Lab (BCS701)
🎓 Scheme: VTU 22 Scheme – 7th Semester
📺 Channel: VTU Debug
#IoTLab #BCS701 #VTU7thSem #SPDTrelay #IoTprojects #Arduino #HomeAutomation #EngineeringLabs