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Type: Posts; User: tenorjazz

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    I have run into a bit of a problem and was...

    I have run into a bit of a problem and was wondering if anybody can shed some light about what's going on. In my project I have banks of 8 rotary encoders where the +v and ground are wired in series....
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    What I am building is a "performance" controller...

    What I am building is a "performance" controller for Ableton Live. If all goes as planned it should be able control 32 channels of clips(audio or midi) plus 8 extra hardware/software synths...
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    Wow, I think I am beginning to understand. Thanks...

    Wow, I think I am beginning to understand. Thanks again.

    I should be able to start coding again later tonight and try all this stuff out. Maybe by tomorrow I will have a whole new and much better...
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    By the way, you are right on how I was doing the...

    By the way, you are right on how I was doing the looping and once I had all the Encoders and buttons and things loaded there would 9-10 times that many calls to do the job. It would certainly be...
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    Thanks so much for all the information, it...

    Thanks so much for all the information, it certainly is making things clearer. I think I understand how to get the state of the pins on each poll and will try to code some things this afternoon to...
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    You are one step ahead of me!!

    You are one step ahead of me!!
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    Most of what you said about interrupts went over...

    Most of what you said about interrupts went over my head, maybe something to learn about in the future, but in a bit of a time crunch right now. I will look at the Wire library and see if I figure...
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    Thanks a ton!! tonton81, that works. That...

    Thanks a ton!! tonton81, that works. That explains a lot on why some of my other projects gave me troubles.

    While I have this thread going might as well ask if anybody can help me code this...
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    More Info: I grounded all the unused data pins...

    More Info:

    I grounded all the unused data pins on the MCP, just to make sure that wasn't the problem, it didn't help.
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    The reset pin should be pin 18, just above the...

    The reset pin should be pin 18, just above the address pins. I have it connected to 3.3v of the Teensy, which is also tied to VCC (Pin 9 or VDD on the MCP data sheet). See the attached photos.
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    Here is a picture of the MCP address matrix. The...

    Here is a picture of the MCP address matrix. The MCP base address is 20 and goes to 27.

    13970

    Yes I am running I2C, I need every available pin I can manage to find.

    I was reading an article...
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    Teensy with Encoders and MCP23017

    Any help or ideas are greatly appreciated!

    I am working on a project that has me reading 25 rotary encoders with buttons, controlling 32 LEDs, reading 16 "stand alone" buttons and reading 2...
  13. Operator Error!! Turns out there are 2 versions...

    Operator Error!! Turns out there are 2 versions of this screen and I bought the Non-Touch version of the screen.
  14. Sorry the picture isn't that clear, both wires...

    Sorry the picture isn't that clear, both wires are going to pin 13.

    I am fairly certain I have it wired like Paul's example (see first post), I have rechecked it 5-6 times, but if somebody see's a...
  15. Trying to get the Color 320x240 TFT Touchscreen, ILI9341 to work

    I am trying to the PJRC's color Touchscreen to work. This is my first attempt at getting a Touch Screen working.

    I am using a Teensy 3.2.

    Wired it like it says on PJRC's site:...
  16. Mortonkopf - This is just what I was looking for....

    Mortonkopf - This is just what I was looking for. One question.. Would I have to change any of the component values since I am running everything at 3.3V? NOTE: I am only about 1 month into learning...
  17. Just found this image. I know it's not exactly...

    Just found this image. I know it's not exactly the same Encoder. I might be wrong on the pins needed :D

    12911
  18. Sparkfun RGB Rotary Encoder Pinouts and Connection

    Is anyone familiar with this Sparkfun RGB Rotary Encoder?

    12910

    https://www.sparkfun.com/products/10982

    I am not very good at reading datasheets yet (I am still real new at this stuff) so...
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    OK, I just ordered a new Display from Amazon. ...

    OK, I just ordered a new Display from Amazon.

    Diymall 0.96" Inch I2c IIC Serial 128x64 Oled LCD LED White Display Module for Arduino 51 Msp420 Stim32 SCR

    The description says you can change...
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    Thank you everyone for your replies, they were...

    Thank you everyone for your replies, they were very helpful. I hope to get a new display in the near future and will follow your advice on how to get it working.
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    I used the I2C scanning sketch and it said it...

    I used the I2C scanning sketch and it said it couldn't find any I2C devices connected. In the end that is why I returned the display.
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    I did check the wiring multiple times and I as...

    I did check the wiring multiple times and I as mentioned earlier, I tried it on my Mega with the same results.

    I think there was something wrong with the display so sent it back. I will probably...
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    Sigi... I was looking at buying Adafuit-Products...

    Sigi... I was looking at buying Adafuit-Products to match their lib but they also need to work with Teensy. It's all a bit confusing for me.
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    I hooked it up to my Mega (using the same setup)...

    I hooked it up to my Mega (using the same setup) and had the same results. I don't have an oscilloscope yet so debugging things have been hard. My guess is that it might be defective so I have...
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    I know the rules on posting but I haven't built...

    I know the rules on posting but I haven't built any special circuit or written any code, just trying to figure out how to get it running. However, here is how I hooked it up and what follows is some...
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    Hiletgo 128x64 and Teensy LC

    I recently purchased a little Hiletgo 128x64 OLED I2C Display but have zero luck in getting it to do anything. I tried the Adafruit 1306 library and examples but can't even get it to "light up". Can...
  27. By the way, it is a two-way conversation between...

    By the way, it is a two-way conversation between the Slave and Master. When I get a little further along I will post the circuits and code.
  28. So what I am hearing is that the Mega or any I2C...

    So what I am hearing is that the Mega or any I2C compatible Aruduino has built in pull up resistors that are always attached, is that correct?

    Sounds like a logic level shifter will do the trick,...
  29. Pullup voltages with Teensy and Arduino on I2C circuit

    I have been developing some I2C proof of concept code, using the wire library, for a new project using two Arduino UNO clones (I don't worry about burning them up if I wire something wrong). Now that...
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    Paul was right... Using a Raspberry Pi to program...

    Paul was right... Using a Raspberry Pi to program an Arduino is blazingly SLOW. As my sketches became even slightly more complex the Pi started to fall on it's knees. I came to the realization that...
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    Here's what I learned... 1. Open your Sketch in...

    Here's what I learned...
    1. Open your Sketch in the Arduino IDE
    2. On the right hand side near the top you will see a down arrow. Click it an select "New Tab"
    3. Name the New Tab "name.c", all...
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    That's it, can't believe I missed it.

    That's it, can't believe I missed it.
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    I never did find the USB_MIDI examples. I thought...

    I never did find the USB_MIDI examples. I thought I saw them there in the past, but they are not there now. I have done some uninstalls and re-installs and wonder if I messed something up somewhere....
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    Thanks for the info. I also found something that...

    Thanks for the info. I also found something that looks very interesting, it's an I2C controlled multplexer (MCP23017), and being I2C it will use even less pins. I do wonder about the performance...
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    Multiplexer with 3.3v logic

    I'm looking for a 16 chancel Multiplexer that can be controlled with 3.3v logic. I am looking for one that you can plug into a prototype breadboard, not surface mount. Can someone point me in the...
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    I am using the latest teensyduino on a TeensyLC...

    I am using the latest teensyduino on a TeensyLC board. I can't seem to find the MIDI_name example. Can someone post the URL of the example?
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    Got it running again. Didn't see the documented...

    Got it running again. Didn't see the documented anywhere, but it looks like the USB Type needed to be set to Raw HID.
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    Teensy LC stopped working.

    I built a board with 8 buttons and three sliders on it.

    I wrote some code to get input on the pins and Serial.printed to the monitor verifying that everything was working.

    I then copied in...
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    Thanks for the help. In the end I started over...

    Thanks for the help. In the end I started over by reinstalling everything including Raspbian, so I was sure there were no left over bits of code that might confuse me. Everything is up and running...
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    I figured there were a number of fixes and...

    I figured there were a number of fixes and improvements so that is why I wanted to get to the latest versions.

    When I do install Teensyduino 1.40 and Arduino 1.8.5 what happens to the old...
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    While I was waiting for your reply I came across...

    While I was waiting for your reply I came across and interesting video explaining the process. He actually made a script to do all the necessary steps to get it to work.

    Here is a link to the...
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    Installing Teensyduino on Raspberry Pi 3

    Hey Guys,

    I just bought a couple of Teensy boards to build a number of USB midi controllers. I have been working with Arduino but the Teensy looks like a much better solution for what I am trying...
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