Author Archives: Daniel O'Malley

New Blog

Hey folks, This blog is no longer active. If you still want to see what I’m up to head over to dlukeomalley.com. See you there! – Luke Advertisements

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VU Meter – First Audio Test

The VU Meter works and has more or less been validated. I need to make a few more measurements but I’m fairly confident in the circuit at this point. Next step is to add a peak detector to the input … Continue reading

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VU Meter Prototyped and Working

Last night we built a fully functional prototype of the circuit and it worked without any hitches. We limited the number of LEDs for testing; only 30 LEDs were used for output display versus the planned 50. We still need … Continue reading

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VU Meter Revision (v1.1)

  I made a few minor tweaks to the board. The most notable change is reducing the number of capacitors and using two different types (ceramic and tantalum) with different capacitances. I also rerouted traces to make the printing and … Continue reading

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The VU Meter Makes Its Return

I was finally able to give some attention to the VU Meter discussed back in January. The concept is based around the LM3916 chip produced by National Semiconductors. I still have to review the circuit and have another set of … Continue reading

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Personality Core: Part 3

The shell of the bot was the main the thing to come out of this summer. Life and work kept me busy and the amount of time I was able dedicate to this project was limited. The shell of Wheatley … Continue reading

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Personality Core: Part 2

A lot of progress has been made on this project since my last post. The designs I included before do not represent, in any way, the finalized design. I’ve begun to collect all of the parts and will begin building … Continue reading

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