MITCHELECTRONICS Light Alarm Project Kit

The MITCHELECTRONICS Light Alarm Project Kit is a simple yet highly educational electronics project designed to trigger a buzzer alarm when the onboard photodiode detects an excess of light. Perfect as a classroom example, this kit is an excellent tool for learning about how photodetectors work and how they trigger electronic circuits.

The circuit utilises a photodetector to convert light into an electrical signal, alongside a comparator that checks whether the light level is above the set threshold. An onboard potentiometer allows for easy adjustment of the light sensor's sensitivity, providing flexibility for different environments and light conditions.

A key feature of this detection circuit is that it is latched, meaning it will remain triggered until manually reset. A dedicated switch is included to reset the circuit after a successful detection. Supplied in kit form, this project is ideal for beginners or as soldering practice, making it a great introduction to basic electronic components and circuit assembly.

Key Features

• Triggers a buzzer alarm when excessive light is detected
• Uses a photodetector and comparator circuit
• Onboard potentiometer for adjustable sensitivity
• Latched detection circuit with a reset switch
• Requires a separate 5V power supply
• PCB Dimensions: 34 x 68mm