Archive for date: January 21, 2012

An Arduino powered IBM PS/2 Morse Keyboard

January 21, 2012 | Amateur Radio, Arduino | By: Mark VandeWettering

I’ve been trying to do a bit more Arduino programming and interfacing lately. Nothing too difficult, but just trying to expand my junkbox and my skills so that I can quickly prototype new ideas and expand the kind of projects that I can tackle in the limited time that I seem to have for playing […]

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Interesting discovery regarding a junkbox piezo element…

January 21, 2012 | electronics | By: Mark VandeWettering

I was tinkering with a small electronics project (article and video to come) and needed a sound output. Digging around in my junkbox, I found one of these piezo speakers, and decided to use it, driving it with a square wave from my Arduino: Piezo Element 1500-3000Hz – RadioShack.com My initial test was supposed to […]

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