- #31
neanderthalphysics
- 53
- 6
OK, how would you improve it?
Hacked pulsed laser driver using Arduino
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SUMMARY
This discussion focuses on hacking a 5mW green laser pointer to pulse using an Arduino signal. The user initially attempted to drive the laser with an NPN transistor but encountered issues with the circuit configuration. Key recommendations include using a MOSFET instead of an NPN transistor to avoid voltage drop issues and ensuring proper connections between the laser, batteries, and Arduino. Safety concerns regarding laser usage are also emphasized, particularly the potential for eye damage from overdriving the laser.
PREREQUISITES- Understanding of Arduino signal output and basic electronics
- Familiarity with NPN and MOSFET transistor operation
- Knowledge of laser safety standards and risks
- Basic circuit design and troubleshooting skills
- Research MOSFET driver circuits for laser applications
- Learn about laser safety ratings and protective equipment
- Explore Arduino libraries for controlling pulse width modulation (PWM)
- Investigate the differences between NPN and MOSFET transistors in circuit design
Electronics hobbyists, Arduino enthusiasts, and anyone interested in laser applications and safety precautions in electronics projects.
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