engrssc wrote:Due to the compact size of the LITSW, and with proper planning you can mount the board on or near the c/a piston rail given physical space. Then only the small 4 conductor cable connects to the Master Controller. This 4 conductor cable carries power for both the piston switches and the LEDs. As well, the logic for 24 lighted pistons.
Something to consider is the length of the 4 conductor connecting cable when you order a LITSW. The LITSW will not power incandescent 5 V lamps found in some lighted pistons - only LEDs with no more than 3ma draw. I have replaced the incond lamps with LEDs without an issue. I add a 1K, 1/8 W resistor in series between the LITSW and the LED. There is a single common lead for both the switch and the LED. Nothing says you need to use only white LEDs BTW.
That's a good point. I am still thinking about how I can sort my buttons to place LITSW as good as possible. That's not easy.
I already have lighted LED switches, so I don't have problems with high current.
Pistons with colored LEDs is a very good advice, thank you!
[quote"engrssc"]
Lighted stops use different boards, also easy to configure.
[/quote]
I actually don't quite understand what you mean. I guess you mean that I should use one (or two, ...) LITSW only for pistons and one (or two, ...) only for stops. Is this in order to keep it clean without chaos? Or is there a more important reason?
engrssc wrote:Another "thing", I have used laser printed .5 inch diameter (black or colored lettering on clear) labels for pistons. The advantage is the label can be changed/replaced if you change the configuration. The option is, of course to use engraved pistons. I've got some laser printed labels on a regularly used instrument's pistons, still in good condition after a couple years. There are a few "tricks".
I use laser printed labels as well which I cut out to fit inside (under) the front cover. Works perfect
engrssc wrote:If you don't use scoped pistons, the LED will only stay lit as long as you hold the piston in.
Oh, thank you very much for pointing this out. I haven't been aware of this!
dcaton wrote:When I was planning out my HW console conversion, I went through the same exercise trying to figure out what additional buttons/pistons I wanted to add for HW-specific functions. I wanted to figure this out before I ordered MIDI boards so I could order everything at once and make sure it all worked together (I also use Roman Sowa's midi hardware).
Despite reading the HW manual over and over and creating lots of spreadsheets with button layouts, I never came up with something I was comfortable with. I'm modifying an existing pipe organ console with limited space for additional controls. Any buttons I add require holes to be drilled, and once holes are drilled I can't change my mind and move things around.
This is exactly my situation right now! Once the holes are drilled there is no way to change it (without it looking stupid).
dcaton wrote:Finally I gave up on that and came up with another idea. I decided to create an "organ controller" using a RaspberryPi and a small touchscreen display. The pi has a USB midi adapter and is connected to one of the in and out ports on my MOTU MicroLite, so it receives all midi messages flowing through the system, as well as being able to generate midi messages on its own. I can create any number of interfaces on the touch screen to display messages from HW and to send commands to HW. If I don't like something I can easily change it, and if future versions of HW add a feature I want to control I can add it, without having to figure out where I would mount more physical buttons.
In addition, the pi also controls relays that turn on/off the main computer, controls power to the 12v dc power supplies, the console lights, the speakers, etc. Also, I plan on having it drive four led bargraph displays for swell shoe and crescendo indicators.
I started this project about 2 1/2 years ago, but it's been on hold for 2 years as I moved and other things took priority. I just recently pulled it all out of the box and started working on it again, so I don't have anything at this point I could share. If you have any programming skills though, it isn't that hard of a project to put together.
This sounds awesome! I am actually familiar with programming with python and C++ (but not using it as much now as I used to some years ago). I might consider this. I would be happy if you message me when you are able to finish it.
I like the idea of the LED bargraph displays.
I want my pistons and registers as physical buttons. But your method sounds like a really awesome possibility to take care for other buttons and messages! Thank you for this input.
larason2 wrote:If you’re not sure how to group the buttons, I would arrange the buttons the way they are on a typical console. For pistons, under the keyboard rails, a number of pistons immediately underneath, and 2-3 pistons at either end for either octave, floating divisions, or stepper forward/back. For the stop selection, you could have them either side or above the keyboard, in any of the various traditional ways. You can use a stop selector for couplers or stops, so they are pretty multi purpose. My personal preference is to have either a lighted momentary button, or a standard momentary button linked to an LED for stops. They are inexpensive, LED’s last a long time without burning out, and it can instantly change without needing a lot of things to move. Any further buttons or Displays you can add later, when you’ve had a chance to use your machine for a while, and determine what you really need. All the best with your project!
Thank you very much for your advice. I will use them if I am uncertain