![]() A4 landscape clear Perspex Stand-Up Sign Holder (like this), quantity 1.Wooden base board, A3 or larger and ~20 mm thick, quantity 1.USB Pen Drive - to put the MIDI files on.8 Channel 5V Relay board (like this) for the myRIO to control when the solenoids are energised.I wanted to be able to play 4 notes at a time, so went for a 5A model to give myself enough current. I went for these (12V 1A, 10mm stroke) - you want something with a reasonable stroke so you can accurately lift the chimes away from the ice. ![]() they retract a plunger when a current is passed through them, rather than pushing it out. You'll need this to be able to run the LabVIEW code that I have written.
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