I need a total of 20 digital buttons on my setup. I saw this video:
where this dude hooked up one side of the button to the analog +, and on the other side he attached 2 wires, one going to the #, and the other connecting to a resistor and then to the -.
So, I cut off the resistors and wired the buttons to the + and - on the analog block and set those analog lines to "btn" in the Config, and I turned on the "flip" so I get 127 when I press the button and 0 when I let it up. I've got IDs 3,4,5, and 6 (MID notes 67, 68, 69, and 70 respectively) in the analog block set this way.
But, when I press one of the buttons the blue LED on the Brain JR goes out as long as the button is held (not sure if that's a problem), and the MIDI input shows activity for all 4 notes, no matter which button I press (e.g. if I press button 3, I get "note 70 127 ch 3, note 69 127 ch 3, note 68 127 ch 3, note 67 127 ch3 and upon release I get note 67 0 ch 3, note 70 0 ch 3, note 69 0 ch 3, note 68 0 ch 3)
Is there a way to get the Brain Jr. to handle these as discrete notes for each of the buttons?
Thanks for the help - I'm pretty new to all this and it's been fun working on the little mysteries.
Comments
Ok, i got everything wired up exactly as described and it's still not working right for me. I'm finding that the button signal works about 1 out of every 50 button pushes, and the signal is sent very slowly - it lags the button push (and release) by somewhere between 2-5 seconds. The other 4 pots hooked up to my analog inputs are sending just fine with no lag. I tried setting the buttons to "pot" and "btn" just in case there was an issue there, but it didn't seem to improve the situation. I really don't understand what's going wrong but it seems like I'm close to the solution. Any help is appreciated!
The blue light is no longer going out
I've tried all four of the buttons on various analog inputs with the same behavior.
Figuring that the problem must be related to the resistors I was using, I did some un-soldering and re-soldering, and replaced what I had with 10K Ohm 1/8W and put everything back together to see if things would work differently.
OK - I've triple-verified that I've got the button sides wired as described above.
OK, this is really starting to get Twilight Zoney on me here.
I'm not sure if this was ever resolved, but I am having the same problems as unclenoah. When I try to use the btn mode with the analog headers I can't get any response. It even fails when I do a direct wire test. I can get response in the tools window in pot mode though. It makes me wonder if the brain jr may be malfunctioning. I have two brain jrs and am using momentary switches with 10k pots on the analog headers on my 2nd brain without any problem so I at least know my wiring is correct.
Slightly abused may have been an understatement... Im pretty sure I messed this brain up at some point. I think I'd best just replace it.
Hey Tor! I'm glad to know at least I'm not alone with this issue. I've not been able to resolve it, and I've been thinking I'm just going to reconfigure my controller design to include more analog controls and forget about trying to add these additional digital buttons. If you figure any of this out, please let us know!
2 years later and still no answers to all this. I'm figuring I'm going to just give up on this particular configuration effort and re-work my controller build. It's really too bad, though, because I would like to know what's gone on here - it seems really unusual, and I'd like some answers just for my own peace-of-mind.
Hi Unclenoah,
Hi support! Thank you so much for the response!