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  • TI Hercules LaunchPad: using an SD Card Part 3

    I'm about to close a long outstanding task: Make SD Cards work on a Hercules LaunchPad. I've done several half-baked attempts since November 2013. Thanks to persistence (not mine, martinvalencia 's), it's finally working now. This last part of the blog…

  • I am looking for a simple excel spreadsheet to calc. transformers, no. of turns, power etc.

    I am looking for a starter spreadsheet excel '2003' prefered to calculate transformers (home made) small amps and volts. These are for my experiments and I want to be as accurate as possible. I also am looking for the same for 555/556 ic's for timing…

  • ThereminLCF2.xls

    This spreadsheet allows crude computation of inductor and capacitor values for Theremin oscillators and equalizing coils.
    • ThereminLCF2.xls

  • Gobetwino with Open Office

    neilk gave me the idea of logging greenhouse temperature data into a spreadsheet, so I did a little more investigating into how this would work with Gobetwino. I have a little greenhouse not too far from the house, so I thought this might be a neat thing…