Practical Usage

Category: Electronics

  • VC-1: Volume Control Beta

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    rt
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    The VC-1 is. On the left, the Silonex Audiohm opto-couplers (OC) with the electronic drivers. it has been described here. On the right, the line-buffer/impedance-controller described there. It works as expected, using two digital pins on the Arduino micro-controller to change the volume. Partial specifications I use 2.2 Mohm metal film resitors as a voltage…

  • Making my own PCB: An exercise in frustration

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    rt
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    I decided a few weeks ago that I would make my own circuit boards (PCB) for a while. At least for the first Beta. I succeeded, but the time and money invested make it a very “not profitable” adventure. I had to deal with nasty chemicals, capricious sensitized copper coated boards, unfriendly software and a…

  • Griffin Stompbox: A review

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    rt
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    Update 16/1/31: Nothing left of this device on the Griffin site. I guess it has been retired (deprecated) Since I develop pedal boards, I thought I’d give the Griffin Stombox a try. To see what others are up to. The idea makes sense. A pedal board to control effects on the iPad. Sadly, there are…

  • Alesis iO DOCK: A review

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    rt
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    There will be no un-boxing. Sorry, but there isn’t much in the box. Actually, I won’t do much functionality review today. In this first review, I am more interested in what is INSIDE the Alesis iO DOCK. The Alesis IO Dock The left side is for midi connection.Midi in-out and Midi USB. The iO DOCK…