SYD1230 Red Dot Laser Diode Module – 5V 650nm 5mW Adjustable Focus Laser for Arduino in Pakistan

Overview 

The SYD1230 Red Laser Module is an all-in-one optoelectronic component that integrates a 650nm laser diode, a copper casing, and a focusing lens. It is engineered to project a tight, concentrated “dot” target rather than a line or crosshair. Because it runs on a standard 5V logic level, it can be triggered directly via an Arduino digital output pin, relay module, or transistor switch, making it an excellent choice for DIY tripwire alarms, automated target systems, and non-contact positioning tools.

Key Features 

• Adjustable Focus: The threaded plastic lens head can be twisted to focus the laser dot to its sharpest possible point over varying distances.

• Direct Microcontroller Drive: Draws low current (~40mA), allowing it to be safely powered and switched by most 5V microcontroller development boards.

• Industrial Copper Housing: Enclosed in a heavy-duty copper shell that acts as a mini heatsink, ensuring stable light output and longer diode life.

• Color-Coded Lead Wires: Pre-stripped 2-wire interface (Red for Positive, Black for Ground) for immediate breadboard or solder installation.

Technical Specifications 

Popular Project Ideas 

• Laser Tripwire Security: Pair it with a Light Dependent Resistor (LDR) or Photoresistor module to create an invisible home security perimeter.

• Laser Tachometer: Point the laser at a spinning wheel with a reflective strip to measure high-speed RPM non-contactly.

• Cat Toy Automation: Mount it to a dual-axis pan-and-tilt servo kit to code an automated, unpredictable pet toy.

Safety Warning 

This is a Class 3R/3B equivalent low-power laser component. While it is safe for general hobbyist experimentation, never look directly into the laser beam or point it at people’s eyes, reflections, or moving vehicles.