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• Another Fried Launchpad

  lageos • 10/19/2014 at 14:53 • 0 comments

  One call for caution, the MSP430 launchpads are great and inexpensive but you have to be careful if using it for programming external tools (ESD, voltage levels).

  Therfore a little hold on my project :)

  The good thing is a launchpad isn't expensive and delivery is free from https://estore.ti.com
  

• Temp Control Running

  lageos • 10/15/2014 at 17:23 • 0 comments

  After some time waiting for my PCB (got it via dirty pcbs) I was able to start the first project: a simple temperature controler.

  A connected DS18B20 sensor determines the temperature and the microcontroler controls an external relais and subsequentially a peltier element.

  Currently in development is to set the processor in low power mode i.e. use interrupts and pwm for controling the relais.

  Next steps are to use a 8 pole dip switch to set the target temperature (fits nice in the breakout and avoid the need of an display) and uprgrade to a MOSFET or SSR.

  But it already works for keeping the coffee warm :)

  If you're interested the code (code composer studio project) as well as the board layout is available at github (encountered no problems yet which makes me proud for the first eagle desing I made).

  You can even order the board dircetly via:

  http://dirtypcbs.com/view.php?share=1062&accesskey=fa772e16543f8e868555ccbc2bad097e

  Although I have to admit the silkscreen is not very informative and I would also flip perhaps the order for the voltage regulator.
  

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