Recent content by j_dunavin

Fixed! Moved all potentiometers to the 3.3v bus, everything works properly now. Thank you!

I have it wired based on this description of lots of potentiometers and multiplexing : https://www.pjrc.com/teensy/td_midi.html There he shows the pots being run off of the 5v bus . But it’s not difficult to switch them to the 3.3v bus on my board, i could try that later tonight

I am building a large midi board with 21 potentiometers, 28 buttons, eight encoders and two touch inputs. The potentiometers and buttons are multiplexed and everything seems to be working correctly. I can use the serial monitor and see all the buttons, and CC notes with the potentiometers. The...

I don't know enough to say the fix for sure, but I would guess that Delay(10); is the cuprite

Ok taking a closer look at your code. Your button one is saying IF it’s high do something. Well it’s always held high so the code never moves on to the next step. Try saying if the button goes low, which is really what your after. Just try replacing all your Highs with Lows. I could be totally...

pretty new here myself, but I believe the problem resides in all the IF statements. I think if you had case statements for all the buttons, it would work better. What I mean is that it doesn't know to also read these other switches at the same time.

I am working on a larger MIDI controller with multiplexed switches, potentiometers, encoders, touch input, and back light switches. The switches are on a ws2812 led string, and run via this non blocking library: https://www.pjrc.com/non-blocking-ws2812-led-library/ So far everything is working...

are you using hold up resistors on the encoder lines? Not sure if it's THE fix, but just curious.

I am by no means an expert, but I was working with another project that also had a wide voltage range, but was only looking for an on or off, high or low signal. I did some research and came to the conclusion that an op amp comparator circuit was what I needed to buffer the signal. There are...

maybe one of these guys in line??? http://www.holtic.com/products/3093-hi-8450-hi-8451.aspx

Is it possible to read Arinc 429 on the Teensy's RX and TX pins? Even if there would be some sort of extra hardware involved I would like to know. thanks https://en.wikipedia.org/wiki/ARINC_429

using this as an example: https://www.pjrc.com/teensy/td_midi.html Paul shows how to multiplex many knobs and buttons. Can I simply connect 4 rotary encoders to one 74HC4051 chip, then define those pins for the encoders? I have many encoders I would like to connect, but it takes so many pins on...

Looking to wire multiple encoders. Would this example of Common Bus Encoders work to send out midi signals? https://github.com/j-bellavance/CommonBusEncoders/blob/master/tutorial/tutorial.pdf

Ya, there's no white here, just RGB. I like the calling it out deal. Perhaps I could call em out as Red, and Red 1 for example. I'll try it out in my test I'm running

I am doing some testing with this library as it will be part of my MIDI controller project. https://www.pjrc.com/non-blocking-ws2812-led-library/ Apparently this diffused neopixel LED https://www.adafruit.com/product/1938 Has the red and green backwards from normal WS2812 strips. The Adafruit...