The guide explains how to connect a relay module to an Arduino for controlling high-power devices like lights and motors. It covers types of relays, their working principle, applications in IoT and automation, and safety tips. QKZee Technologies in Lahore offers components and guidance for students’ electronics projects.

The IR receiver module detects infrared signals, used in automation, IoT, and control systems. It operates by capturing signals from remote controls, integrated with platforms like Arduino. Common types include TSOP1738, VS1838B, and HX1838. QKZee Technologies in Lahore offers components and support for projects, enhancing learning in electronics engineering.

A thermistor is a critical component in electronics, used for temperature sensing across various applications, including IoT projects, battery protection, HVAC systems, automotive sensors, and home appliances. They function through resistance changes with temperature, featuring NTC and PTC types. Despite limitations, thermistors are favored for their sensitivity and affordability in student projects.

A MOSFET (Metal-Oxide-Semiconductor Field-Effect Transistor) is crucial in electronics, acting as a switch or amplifier. Its three terminals—Gate, Source, and Drain—enable current control via voltage. Widely used in automation and projects, MOSFETs are pivotal for efficiency and functionality in various applications, ensuring precise electrical management and integration.