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boot

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MIDIbox Newbie

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  1. hmm I was quite surprised when I remeasured the potis with a multimeter and the values between the "wipe pin" (in the poti schematic the one in the middle) and the other two have changed drastically. Is this normal? I have additionally added a sketch of my setup. The four parts at the top are some potis. The middle pin is thought to be connected to the AIN.
  2. Hi. I have two relative easy questions: First I built an array of potis like it is described in the documentation. My question is now: Since all potis are arranged in parallel order the resistance of the 10kOhm potis doesnt vary linear like they do when measured a single one (this comes from the rule of resistance behaviour when resistors are arranged parallel). My question is now if the software considers this. I mean the range and the behaviour of each poti is very sensitive to the number of potis used. Does the software recalculate this into MIDI signals by knowing the number of potis? Second: I bought potis with a center detent. Unfortunately I recognized that in this detent the resistance values vary from 4.7 up to 4.9 kOhm. The question is now how sensitive or how big the resolution of the AIN is. Am i getting problems using them as EQs? Best regrads boot
  3. Am I wrong or is here a ready PCB for the buttons: http://www.watterott.com/Button-Pad-4x4-Breakout-PCB 9 Euro. Sounds fair for me...
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