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    teensy as trackball/spinner device?

    Hi,
    I want to build a trackball + spinner panel for one of my simulator games. I thought since I have a teensy lying around I could use that and make my own controller.

    Both the trackball and...
  2. Awesome, thanks for the link! I can see now that...

    Awesome, thanks for the link! I can see now that the variables for the axis are just X, Y and Z.
    While I learn about making my own joystick device; I just set constant value for all the analog axis...
  3. Also where do I get the existing settings for the...

    Also where do I get the existing settings for the Joystick class? As now I only know Joystick.button(); but nothing more. Thanks and merry Christmas!
  4. I see; Thanks KurtE for the pointer. So you...

    I see; Thanks KurtE for the pointer.

    So you don't just change settings using the IDE via the library, but you need to write a descriptor to identify the joystick from the ground up, and the code...
  5. How do you use the Joystick class to setup a HID joystick?

    I am using the joystick library included in Teensy, since the one from Arduino does not work on the Teensy.

    Although I can't find API usage and documentation, and I am stuck now.

    When I connect...
  6. Thanks Paul; I do get a picture of the situation...

    Thanks Paul; I do get a picture of the situation now. Will give a try with the diode and see how it goes.

    BTW, is there a way to remember the state of a keypad button pressed? In this way I can...
  7. keypad library: how to differentiate between momentary switch and toggle switch

    Hi,
    I just started to use the keypad library; and I am able to get signals from various controls. I am looking at the state changes to handle the signal accordingly.

    At the moment I have a...
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    Sorry, I am aware of how it works here; I just...

    Sorry, I am aware of how it works here; I just didn't post the wiring since I thought that the matrix above was clear enough.

    I did try with the keypad library, and it does work like a charm!...
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    matrix of pins to increase inputs

    Hi,

    I am working on my controller with Teensy 3.1, and I am using a matrix to add more inputs than the available digital IO available.


    2 - 3 - 4 - 5 - 6
    ------------------------ ...
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    Help for joystick/keyboard setup

    Hi, I am making a simple controller that uses buttons and switches, so I can use it as game controller for my kids.

    I am having a lots of issues with the configuration. I did find an example on...
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    Not sure if it is a new behavior of the...

    Not sure if it is a new behavior of the application or some W10 problem, but the Teensy won't reboot spontaneously when I upload.
    The loader appear and say to push the reset button, which I remember...
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    Thanks for the hint, Mike! I did not run yet...

    Thanks for the hint, Mike!

    I did not run yet some data consistency test, to find out which is the limit; so I want to play safe, and most of the articles online suggest to use values that does not...
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    Thanks for the explanation; my understanding was...

    Thanks for the explanation; my understanding was that the line with data and the power line has to be separated, since there is already current going on the data line, and if you put power from VCC,...
  14. I see :) I wish I knew about it before buy these....

    I see :) I wish I knew about it before buy these. I will keep this in mind for my next project!
  15. Much appreciated Paul and Constantin; I have cut...

    Much appreciated Paul and Constantin; I have cut the pads apart and wired gnd to gnd of the battery and VIN to the positive of the battery, and it works fine.

    while using the charger, I am...
  16. Embarrassing; the issue was not with the code but...

    Embarrassing; the issue was not with the code but with the serial monitor.

    On arduino IDE, I was not setting the monitor as "Both NL & CR"; now with just 4 lines of code I can send commands to the...
  17. Finally got my computer back; so I am starting...

    Finally got my computer back; so I am starting again to work on these :)

    I was successful in talking to the device, turning on and off LED from my computer/droid device.

    Now I am on the AT...
  18. Teensy 3.1 battery powered: correct pin used?

    I have purchased a battery charger from Adafruit, to recharge the battery; and I would like to use it in my project. The item is this one: https://www.adafruit.com/products/1905

    The idea would be...
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    I see; so the resistor is needed anyway. I...

    I see; so the resistor is needed anyway.

    I read somewhere that the Teensy has pulp resistor but probably it was something else.
    forgot that the clock is common, so it makes sense that it has...
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    I see, Thanks!!! My understanding of this IC...

    I see, Thanks!!!

    My understanding of this IC was totally incorrect; I saw some examples of it used with analog items, like pots; so it was making no sense with a setup with I2C.

    Questions:
    ...
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    True, but there are differences in how you...

    True, but there are differences in how you address issues thou.

    You all know better than me, that to learn things takes months maybe, but it is not enough to read a book to consider yourself "an...
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    I see; I have no idea that it was something like...

    I see; I have no idea that it was something like that... you can tell that I am new

    I am familiar with Xcode, but I don't really like it much...I use more often Visual Studio, and if I can, I...
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    I would gladly participate :) Since I know very...

    I would gladly participate :) Since I know very little, would be a great chance to learn something too while I work on the wiki :)

    Honestly I bought a teensy after learning about arduino....it...
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    Teensy 3.1 with CD74HC4067: I2C usage

    Hi all; I am experimenting with this chip: CD74HC4067

    I would like to connect via I2C, various sensor that are all using the same address (MPU-6050).

    Altho now I am stuck at how to connect...
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    Thanks to both of you. Much appreciated for the...

    Thanks to both of you. Much appreciated for the resources; I know some, but others are totally new to me.

    With programming, they usually have books that start with theory and go trough various...
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    The problem is not the UART transmission, but the...

    The problem is not the UART transmission, but the Serial+Bluetooth. That page refer to the Teensy, not the HC-05

    If the module is not rated for such speed, you are introducing the chance to loose...
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    Fair enough; your remarks are all legit and...

    Fair enough; your remarks are all legit and logic. Thanks for your reply.

    Overall any project makes me think "how do I do that", but not because I don't know how to load a sketch or put together a...
  28. I see; so that pin high or low, dictate if the...

    I see; so that pin high or low, dictate if the device accept AT commands or not? In that case I can just grab the 3.3v output on pin 3, until I am done sending the commands.

    Thanks again Michael!
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    So you are not limited to 9600? My HC-05 chip...

    So you are not limited to 9600?

    My HC-05 chip is specifying to use 9600, or there could be incorrect transmission of data. I didn't experiment much on the subject honestly, since so far, 9600 is...
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    Books specifically for Teensy IC?

    I have found nothing so far; only the data sheet on this site and the tutorials here. There are plenty of books for Arduino, but Teensy != Arduino, so I do't want to waste time reading a book that is...
  31. BTW is Bluetooth enough for your bandwidth?...

    BTW is Bluetooth enough for your bandwidth? Sounds like something that you could do with Wifi instead.
    Keep in mind that the cheap BT modules, like the one that I have purchased (marked as...
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    Thanks; in this way we don't mix up the posts. It...

    Thanks; in this way we don't mix up the posts. It sounds really interesting what you are planning to do.
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    I believe that this deserve a new post; instead...

    I believe that this deserve a new post; instead of highjack this one ;)
  34. Thanks a lot! I will give this a try tomorrow. ...

    Thanks a lot! I will give this a try tomorrow.

    I do not have any device that run on android with Bluetooth; I will try with either my windows tablet or via console on my macbook.

    I just need to...
  35. GAH, that would explain why I get communication...

    GAH, that would explain why I get communication only trough USB.. I am using Arduino code, which is talking to the USB (Serial) port...obvious that it won't respond on anything else beyond that.
    ...
  36. Teensy 3.1 and HC-05 : bi-directional com with other device and AT commands?

    So, after trying various solutions, I ordered few of these cheap hc-05.

    I hooked up the transmitter to the Teensy in this way:

    Teensy - HC05

    3.3V out -> Vin
    GND -> GND...
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    Correct Paul, downloaded again, and tried with...

    Correct Paul,

    downloaded again, and tried with the beta Arduino; no luck whatsoever.

    But this one works with the 1.0.5.

    I had as latest Teensyduino, the 1.19; while this one (1.20-rc5)...
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    New Teensyduino won't install on Mac

    So, I had the brilliant idea to download the latest Arduino app, and then latest Teensyduino.

    Instead of save a backup, I just did an overwrite; like I always do; but this time I was royally...
  39. Thanks for the hints; could you suggest how to...

    Thanks for the hints; could you suggest how to proceed to actually have someone to design and make custom boards? Does it cost a lot?
    I don't have neither the skill nor the knowledge to make them at...
  40. Thanks, I check the schematics but have little...

    Thanks, I check the schematics but have little experience on schematics...

    Thanks Paul; so the pin is the 13 then. It basically matters not if I use 13 or any other, right?

    I thought that the...
  41. Burned the onboard LED; which pin is that LED attached to?

    While soldering a cable on the bottom area of the Teensy, I have probably fried the LED that turn on when you power the Teensy.

    Overall it works just fine; but I have no idea of what it is doing,...
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    Guess so :) thanks for the pointers :) Does...

    Guess so :) thanks for the pointers :)

    Does the data sheet contemplate the power for the BT module? Or is there a way to figure it out with a multimeter?
    This is the guy that I am trying to use:...
  43. I am hooking up different sensors to make a...

    I am hooking up different sensors to make a device that can analyze the movement of 4 legged animals (I also have other sensors on top of the IMU sensors, which are only for the data acquisition of...
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    Bluetooth module and Teensy 3.1

    Got for cheap some BT modules from LC Technology (not sure what model are they); and was wondering if they will work with Teensy, and how well they would actually communicate with a computer...
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    Cheap cables has only power line...a saving of 2...

    Cheap cables has only power line...a saving of 2 bucks cost you how many hours ? :)

    Glad that you got it sorted out...I was about to suggest you to try another cable.
  46. Which I really like :) My problem is that I am...

    Which I really like :) My problem is that I am hooking up at least 6 of these on the Teensy, so can't get 6 shields and stack them ;)

    What do you think about this configuration?

    2x9150 on the...
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    Can't wait for this! Love the idea of longer...

    Can't wait for this!

    Love the idea of longer board with more connections and if the board itself is more powerful, it is a more than welcome feature!

    My main interest would be in connectivity;...
  48. Thanks for your reply. So I can actually flip...

    Thanks for your reply.

    So I can actually flip between couples of sensors that has the same address, on the same I2C channel? I need to get to 6 sensor on the same Teensy 3.1,

    The library is...
  49. Teensy 3.1 and MPU-9150 (GY-9150 breakout board)

    Hi

    I would like to get some breakout board that uses the MPU-9150, with a Teensy 3.1

    The problem is that I need 6 of them, and being I2C, I am not sure how to do so (each one has only 2...
  50. Indeed the price is out of this world...altho I...

    Indeed the price is out of this world...altho I found this:
    ...
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