Hello,
May I ask your most appreciated attention for my DIY organ-challenge?
I'm thinking for quite a while about making a 3-manual organ console for playing Hauptwerk samplesets.
I would like to use old keys (from old harmoniums) or make them myself.
The keyboards should be velocity sensitive (as I learned some samplesets are velocity prepared).
I would like using LEDs and phototransistors (2 per key for velocity sensing) to detect the travel of the key, midifying these signals by a microcontroller.
My questions:
I've browsed the internet a bit, but couldn't find any practical indications how to accomplish this.
Do some of you have any advice, recommendations, perhaps even (DIY-)manuals? More specific I would like to know which microcontroller(s) fit(s) my wishes (for 3 manuals and pedal; Olimex A20?) Also I would like to learn the right way(s) to connect the LEDs, the phototransistors en the microcontroller (matrices? and how to do it?).
I only have rudimentary knowledge of electronics (i.e. I know actually Ohm's law and I have soldered components sucesfully onto a circuitboard).
8 years ago I've already posted questions on this subject (viewtopic.php?f=15&t=13550) I very much appreciated your reactions. Today my questions are more specific. For now I would like to continue this project and hope you would help me further once again.
Kind regards,
Fransbart, the Netherlands
May I ask your most appreciated attention for my DIY organ-challenge?
I'm thinking for quite a while about making a 3-manual organ console for playing Hauptwerk samplesets.
I would like to use old keys (from old harmoniums) or make them myself.
The keyboards should be velocity sensitive (as I learned some samplesets are velocity prepared).
I would like using LEDs and phototransistors (2 per key for velocity sensing) to detect the travel of the key, midifying these signals by a microcontroller.
My questions:
I've browsed the internet a bit, but couldn't find any practical indications how to accomplish this.
Do some of you have any advice, recommendations, perhaps even (DIY-)manuals? More specific I would like to know which microcontroller(s) fit(s) my wishes (for 3 manuals and pedal; Olimex A20?) Also I would like to learn the right way(s) to connect the LEDs, the phototransistors en the microcontroller (matrices? and how to do it?).
I only have rudimentary knowledge of electronics (i.e. I know actually Ohm's law and I have soldered components sucesfully onto a circuitboard).
8 years ago I've already posted questions on this subject (viewtopic.php?f=15&t=13550) I very much appreciated your reactions. Today my questions are more specific. For now I would like to continue this project and hope you would help me further once again.
Kind regards,
Fransbart, the Netherlands