Far as I know in the market with high-powered lasers are sold in this application DVD burner laser a plastic piece on the burning writing used in any circuit does not need only laser + end 5w 50 or 100 ohms between the resistor is connected. Author burning from 5 inches away doing your job, but if I remember correctly from the bubble burst, there were those longer distances 🙂
Source: http://www.smety.webz.cz/laser.html
Published: 2012/05/20 Tags: simple circuit projects
SD Card Voice Application MSP430
In practice, the MSP430F2012 MSP4430 series used (instead may MSP430F2013) via sd card is being processed audio files MSP430 PWM, SPI signal processing, filtering and so on. set a good example in the circuit made ​​a 5-page narrative of the eagle pcb, diagrams and drawings II project, code files given ..