Tag Archives: hack

Arduino 101 meetup prep – day 5 – optical limit switches

15May2009 – old stuff that may still be useful Somebody was asking about limit switches today.  We were talking about driving motors and my upcoming Arduino 201 – Get Motorin’ (May 23) meetup and he mentioned one of his applications … Continue reading

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Arduino 101 meetup prep – day 2 – twirly knobs

5May2009 – old stuff that may still be useful This salvaged bit with 5 pots was from a Sony monitor I believe. It was another straight-forward reverse-the-board job…

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Arduino 101 meetup prep – day 1 – LCD display

4May2009 – old stuff that may still be useful Thought I should figure out a few things about this Duemilanove board before the Friday meetup.  To that end I rummaged through my lab to collect a bucket of parts that … Continue reading

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Arduino 101 meetup prep – day 4 – reflective infrared sensor

7May2009 – old stuff that may still be useful Here’s a reflective infrared light sensor I salvaged from a printer.  In that application they are typically used to detect the presence of paper, which is way more reflective than the … Continue reading

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Arduino 101 meetup prep – day 3 – piezo!

5May2009 – old stuff that may still be useful By request: hooking up a piezo buzzer to the Duemilanove to make sound.  A piezo element is just a bimetallic sandwich, usually circular and stuffed in a small case, that bends … Continue reading

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