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Type: Posts; User: UnaClocker

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    Encoder library on the Teensy3

    I'd post some code, but my code is a mess, and I've tried it a few different ways. I'm using the Adafruit_PCD8544 library, PID_v1 library, the Time library, and the Encoder library, on a Teensy 3. I...
  2. Yeah, the STM32 dev boards, when not completely...

    Yeah, the STM32 dev boards, when not completely free, were like $11-$16 each.. Same deal as this new board.. It's a limitted time offer for their dev board. 3 years from now, you won't be able to get...
  3. Use a meter. I have a chinese USB cable and all...

    Use a meter. I have a chinese USB cable and all of the wires are backwards. black is +5v, red is gnd, even green and white were backwards.. Scary, and I got lucky that the device I plugged it into...
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    Welp, got my new board made. Tried again. Exact...

    Welp, got my new board made. Tried again. Exact same problem. Not sure where I've gone wrong, or why it's not working. I've attached my design, if anyone wants to have a look, see if I made any...
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    Ok, I'll use Keyboard.press and release. I assume...

    Ok, I'll use Keyboard.press and release. I assume I'll need some what of a delay in there.. 10ms? Thanks for the feedback.
    edit: I had also used keyboard_keys[x]=keys;, and that doesn't work either...
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    USB keyboard problems..

    I'm getting errors trying to use "usb_keyboard_press" as explained here: http://www.pjrc.com/teensy/usb_keyboard.html
    It's Arduino 1.03, latest Teensyduino applied, Teensy 2.0, on the latest Mac OSX...
  7. The ATMega328 in the Arduino can run over a very...

    The ATMega328 in the Arduino can run over a very wide range of voltages, anything from 1.8v to 5.5v, that's why you can run it without a regulator and monitor the battery voltage that way. The Teensy...
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    Have you looked into the MegaSquirt EFI...

    Have you looked into the MegaSquirt EFI schematics? They're posted online. That is a device with an 8 (optional 16) bit Microcontroller running at 5v, it survives cranking, and most any electrical...
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    Ok, must have missed it in the datasheet last...

    Ok, must have missed it in the datasheet last time, I didn't tie CS to VCC and SDO to ground, which I should have. So I revised my board and am having new boards made. Try try again. I'll revive this...
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    Some more troubleshooting.. Looks like there are...

    Some more troubleshooting.. Looks like there are comms happening on the i2c bus.. I scoped the clock and data pins and I see things happening..
    http://www.neonsquirt.com/SCL.png
    The above is the...
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    ADXL345 Accelerometer library not working

    I'm using a Teensy 3, with the final TeensyDuino code, Arduino 1.0.3.. ADXL345 hooked up via i2c. I've tried this library:
    http://code.google.com/p/adxl345driver/
    When I run the test sketch in that...
  12. Great place to use a Teensy 3.0 with it's native...

    Great place to use a Teensy 3.0 with it's native 3.3v.. I too got one of these nice little SPI EEPROM chips in a DIP-8 package off an old motherboard. Might use it for some kind of project in the...
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    Got the boards, got pins that fit in the really...

    Got the boards, got pins that fit in the really tiny holes that accidentally got put into the Teensy footprint I had created. The voltage regulator works (haven't scoped it yet, to check out how...
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    Looks like if I get machine pins, they'll fit. So...

    Looks like if I get machine pins, they'll fit. So I'll do that for this set of boards.
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    According to my screen, they're 23mil diameter...

    According to my screen, they're 23mil diameter holes.
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    Constantin.. What on earth were you thinking with...

    Constantin.. What on earth were you thinking with the pin size? I just had a batch of boards made using this library. When I made this library, I made the holes big enough to fit standard pins. When...
  17. Lots of ways to do this.. a simple NPN BJT...

    Lots of ways to do this.. a simple NPN BJT transistor like the 2n2222 will drive several fans. They are INCREDIBLY cheap. They will control the negative side of the fan, placed on a PWM pin, you'll...
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    Yup, that's the one.

    Yup, that's the one.
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    Patriot 32gb Class 10 card, they're selling for...

    Patriot 32gb Class 10 card, they're selling for $20 at Fry's right now. I've been using one with my Pi since May, it's reliable, and generally considered to be one of the fastest that you can get,...
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    Teensy 3.0 based accelerometer datalogger

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    This is my latest creation. It's something I've been trying to make for awhile now. First couple tries were with an ATMega328, which I couldn't even get to write to the SDCard. I'm hoping this...
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    OSHPark.com, they'll make you 3 boards with the...

    OSHPark.com, they'll make you 3 boards with the design files listed here. (edit: Maybe they're not listed here? I don't see a link. anyways...) The Mini board would be like $25 or less for 3.
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    I've yet to find an SD Card that doesn't work...

    I've yet to find an SD Card that doesn't work reliably on any of my six Pi. When I got my first Pi, my best card was a Class 4, and only 4gb. So I went to Fry's and bought a 32gb Class 10, Patriot...
  23. That's a cool board, where can I get one?

    That's a cool board, where can I get one?
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    http://www.seeedstudio.com/depot/bus-blaster-v2-jt...

    http://www.seeedstudio.com/depot/bus-blaster-v2-jtag-debugger-p-807.html Check out the BusBlaster.. Not quite as cheap as a Teensy, but still really well priced. It's supposed to be able to JTAG...
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    It'd be great if it could integrate into the...

    It'd be great if it could integrate into the Arduino IDE on the Pi like it does on x86 platforms. I've done some Arduino programming on the Pi. The compile time is a bit absurd, but it sure is nice...
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    The PWMFrequency setting.. What's the acceptable...

    The PWMFrequency setting.. What's the acceptable range? How arbitrary can the settings be, like what kind of resolution can be used for the different frequencies?
  27. Why not post it on pastebin and link? Easier to...

    Why not post it on pastebin and link? Easier to view.
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    Ok, I tried out the revised library you posted,...

    Ok, I tried out the revised library you posted, Constantin. Looks good except that you had two pins on top of each other in the symbol, made it difficult to wire up in the shematic edittor, so I...
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    Awesome, thanks. And yeah, the sparkfun...

    Awesome, thanks.
    And yeah, the sparkfun staggered pins thing seems childish to me.. Never really cared for it. Could always put both versions in the library though. I was thinking it'd be nice to...
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    The Teensy socket pin holes are .03937008", the...

    The Teensy socket pin holes are .03937008", the next size up on the list was .043something".. So they should be big enough, I did take the pin size into consideration when I made that library.
    I...
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    TeensyDapter

    Well, when I came up with the idea for this, HWGuy hadn't done his board yet. His board is great, and does what I set out to do initially, so I took mine a step further. But I'm sticking with the...
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    And then I looked at the other side of the card.....

    And then I looked at the other side of the card.. I see what those pins are for now.. It'd be worth adding them. I'll do that in the morning. :)
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    Ok, I just whipped up a Teensy 3.0 part. I've...

    Ok, I just whipped up a Teensy 3.0 part. I've never tried creating a part in Eagle (or any other program) before, but I followed a nice guide (which was semi irrelevant for this particular part). I'd...
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    Eagle library with Teensy 3.0 footprint

    I'm working on a board that will have a DIP socket that the Teensy 3.0 can simply plug into. I've found the Teensy 2.0 and Teensy++ footprints, but haven't found a 3.0 one yet. I'm using Eagle for...
  35. Definitely. That's right around the preheat...

    Definitely. That's right around the preheat temperature for SMD reflow ovens. Won't hurt it at all.
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    5800mAh with a 25C discharge rate.. Holy cow.. I...

    5800mAh with a 25C discharge rate.. Holy cow.. I had no idea those packs could discharge at those rates! Link 3 of those together and you could probably start a small car engine! heh.. Anyways, yeah,...
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    I think that using a device that steps up the...

    I think that using a device that steps up the 3.7-4.2v to 5v so that another device can cut it back down to 3.3v is really wasteful. I'd get one of the $3 switchmode voltage regulators from eBay...
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    I see you're sold out. I tried to upload your...

    I see you're sold out. I tried to upload your Gerbers to OSHPark.com, and it failed. Any chance you'll be sharing the shematic/board files? I'd like to make a couple changes anyways. If not, that's...
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