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    For the Teensy 3.1 - as per the little reference...

    For the Teensy 3.1 - as per the little reference card - 'All digital pins have interrupt capability'. So pins 0 through 33 :) Just use, attachInterrupt(23, func, LOW/HIGH/etc);
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    Fair play duff, thank you for all your help :) ...

    Fair play duff, thank you for all your help :)

    I'll give it a go later and let you know what I find. In regards to the other wake up methods, can you think of a way that it could be worked around...
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    Ah ha, so in actual fact the Teensy never sleeps,...

    Ah ha, so in actual fact the Teensy never sleeps, but gets stuck trying to service millions of interrupt requests, making it appear as though its hung? That makes a lot of sense if that's the case.
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    Yeah, should have included it before... You can...

    Yeah, should have included it before... You can find it at the bottom of this page: http://bildr.org/2011/03/adxl345-arduino/
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    That's the thing, I've wrapped the sleep part...

    That's the thing, I've wrapped the sleep part with a check to only do it if the pin is HIGH. However, I'm sure the time between this check and then all of the sleep commands is ample for the ADXL to...
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    I've had it running for a few days, and I would...

    I've had it running for a few days, and I would tap every once in a while to watch the LED on pin 17 flash then turn off. The LED on pin 16 would stay on for the length of activity.

    The last time...
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    Teensy 3.1 sleep and interrupts

    I'm using an ADXL345 accelerometer - which outputs a LOW signal whenever it detects activity or inactivity. This LOW signal is explicitly cleared via I2C so once a LOW signal has been set, it won't...
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    Okay, I've tried the following which is using the...

    Okay, I've tried the following which is using the packaged nRF8001 library with Teensyduino and the latest version of the Snooze library.



    #include <SPI.h>
    #include "Adafruit_BLE_UART.h"...
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    I'd say no, if its as easy as adding the pinMode...

    I'd say no, if its as easy as adding the pinMode block after, then people who need it can. I was just unclear on how everything would be set after sleeping.

    I think that you'll need the board...
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    Ah ha, that makes a lot more sense. I'm going to...

    Ah ha, that makes a lot more sense. I'm going to have to take another look at everything now that I know that's the case. With that in mind, after the Teensy is slept and woken up, are the pins set...
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    Hey duff, first, thanks for the library, it makes...

    Hey duff, first, thanks for the library, it makes a lot more sense than the cryptic registers and sleep modes in the manual :)

    I'm using version 5.1 of your library. I've noticed a couple of...
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    nRF8001 and Snooze library with Teensy 3.1

    I'm trying to make a device which has Bluetooth LE connectivity that will be battery powered.

    So far I've used the Adafruit nRF8001 library which has had some attention from Paul in the past...
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    You're right about using one of the serial ports;...

    You're right about using one of the serial ports; sorry I missed that detail off.

    I have actually been using the Teensy 3.0 without the series resistor as you recommend, and there doesn't seem to...
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    Thanks for the reply. I'm communicating with a...

    Thanks for the reply. I'm communicating with a Crius AIO Pro (an Arduino MEGA based Quadcopter control board). I'm gonna assume that its not going to output 9 mA drive?
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    Teensy 3.0 UART voltage tolerance; 5v?

    Can the Teensy 3.0 UARTs deal with 5v operation?

    I read through the datasheet and the only reference I could find was that all of the GPIO pins are 5v tolerant. Does this mean the UARTs are as...
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