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hpieren / Piattuino

MIDI controlled plate robot
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Is it possible for support more than 30 solenoids? #1

Closed seandoyle closed 5 years ago

seandoyle commented 5 years ago

Hi - this is a wonderful project!

Is it possible to support more solenoids? I'm not not familiar with the Arduino Mega's limits. When I look at the pinout it looks like you're using almost all of the digital pins. Is there a simple way to get more? My brother in law was interested in making a device like yours that would span 3-4 octaves. Perhaps there is some way to use two boards responsible for different parts of the MIDI range.

Thanks so much for posting this project!

hpieren commented 5 years ago

Hello there, thanks for your respect for my Piattuino project. Regarding your question, yes you easily use another output concept with the famous 74HC595 shift register. Here some examples:

https://www.arduino.cc/en/tutorial/ShiftOut https://www.arduino.cc/reference/en/language/functions/advanced-io/shiftout/

https://www.hackster.io/MoKo/arduino-controlled-piano-robot-pibot-641a06?utm_source=Hackster.io+newsletter&utm_campaign=29fda74899-EMAIL_CAMPAIGN_2017_07_26&utm_medium=email&utm_term=0_6ff81e3e5b-29fda74899-141333493&mc_cid=29fda74899&mc_eid=407c225f28

I also use this concept in another project: http://www.semprevacanze.it/deutsch/vizulu/ArdaSolSchematics/ArdaSolMonitor001.pdf

Hope this helps you. Kind Regards Heinz