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Old

Thinking of my favorite martian.

Posted 07-25-2013 at 04:18 PM by peonuser

More experimentation with ota hdtv antennas. Decided to try this one: http://www.instructables.com/id/Spiral-antenna/
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Old

Better days coming hopefully.

Posted 07-16-2013 at 11:14 AM by peonuser

Started working with some Arduino circuits. Digital, analog and pwm. Built the tv out interface, but it does not work with ethernet ugh. Had a real nice project planned. in any case I was able to do web page scraping. Installed the ide for Arduino on the laptop.

Changed the root password on the Beagleboard.

Already had motion working on the RPi. The RPI basically only uses digital. Might experiment with r2r before getting some adc and dac chips.

Playing...
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Old

Autoharp

Posted 06-27-2013 at 06:49 PM by peonuser
Updated 07-16-2013 at 11:25 AM by peonuser

Just like a regular autoharp, all you have to do is press a key for the chord sounding.

$ autoharp.sh

************************
* Mom's autoharp *
************************
* [1] C major *
* [2] A minor *
* [3] G major 7th *
* [4] F major *
* [5] D minor *
* [6] E minor *
* [7] E major 7th *
* [8] A major 7th *
* [9] C major 7th...
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Old

oops more time on the arduino.

Posted 06-27-2013 at 06:42 PM by peonuser

Oops forgot to talk about the rs232 last time. have a rs232 to ttl converter, but have not attached it yet. Pinouts were not documented well. May just get a regular shield and take the easy wy out.

Taught the Arduino how to do page scraping from a web page. Going to do a web page on a local server that the arduino can use to send to a monitor via TV.out. Great for a retail application.

Put minibasic on the arduino to play with.

Do not really use flash,...
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Old

This in That. Using the arduino with the rs232 daughterboard

Posted 06-20-2013 at 12:46 PM by peonuser

Using the Arduino for proects. simplest lately was to project a simple web page so that I could take down the internal web server without the users not knowing what was going on. Sort of an under construction page is delivered. Next project is to interface an old composite monitor and use it for displaying messages that can be updated via ethernet remotely.

Installed adosbox on the Nexus 7. Running a lot of my old qbasic programs such as a spreadsheet on it. Not gui, but sure is practical...
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