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Using the Launchpad as an Iambic Keyer

Posted on Saturday, April 23rd, 2011 in MSP430 by the machinegeek

Rob K1WAW was trying to sharpen his Morse code skills and wanted to use an Iambic Keyer. He built this prototype which connects the left and right paddle of the telegraph key to pins on the MSP430 Launchpad, which is programmed to produce the dot/dashes and output it to a speaker at an audio tone of 781.25Hz. (There’s an RC filter and a transistor connected to audio output.)

The code and comments are found in this post.

Via Four-Three-Oh!

This entry was posted on Saturday, April 23rd, 2011 at 7:00 pm and is filed under MSP430. You can follow any responses to this entry through the RSS 2.0 feed. You can skip to the end and leave a response. Pinging is currently not allowed.

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Recent Comments

  • Craig B: Shouldn't the default be 00xxx010? Note that bit 0 appears out of order in the documentation. In that case I think the initial value is...
  • JJM: From the datasheet extract you are showing, the power up status should be 00xxx010, not 000xxx01. Bit numbering is misleading since 'measurement resolution' is apparently...
  • Jan Ciger (@janoc200): Hmm, that could actually explain why the three sensor IMU breakout I have bought a few years ago had all sorts of issues - I...
  • Travis: Is it preset to the windows 3 fingered salute?
  • Glenn: What a cool idea !