Let there be light!

Discussion in 'Pyra News' started by EvilDragon, Mar 6, 2014.

  1. FBnil

    FBnil Ready to Champion the Pyra to the World...

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    Yeah, I want that compass too...

    The price of a temperature sensor (not the one inside the CPU) is 1.5 dollar Not I2C though. https://www.sparkfun.com/products/10988

    The usb variant is much more expensive, but has a very good manual (and you can disconnect the Pandora, but still be able to measure temperature): http://www.yoctopuce.com/EN/products/usb-sensors/yocto-temperature?gclid=CJnNpuy3n70CFWsTwwodZJoASQ
     
  2. Natsu

    Natsu Advanced Member

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    lol
    To see how hot Pyra is. :p
     
  3. _wb_

    _wb_ Microbe Staff Member

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    If the Pyra is like the Pandora, you can use the battery temperature sensor if you want to keep track of temperatures. Put your Pandora in a room, start System Info with logging enabled, close the lid and come back one or two days later. Plot your logs and you'll get a nice temperature graph that is quite accurate, because an idle Pandora does not produce enough heat to really disturb the measurements.
     
  4. EvilDragon

    EvilDragon Administrator Staff Member

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    The OMAP5 has a temperature sensor as well ;)
     
  5. _wb_

    _wb_ Microbe Staff Member

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    A SoC temperature sensor? So there will be two temperature sensors? One for the battery and one for the SoC?
     
  6. WizardStan

    WizardStan Mega GP Mania

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    I'm not sure using the battery or the SoC temperature sensor would give a very accurate reading. What is needed is some kind of external temperature sensor, like something behind the LCD. ;)
     
  7. ssokolow

    ssokolow Member

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    If you're going for something too large to fit inside a Pyra anyway, you might as well get a DHT11 and get temperature and humidity with similar accuracy for under $1.50 including shipping.

    (And it's still small enough that you could probably use perfboard, V-USB, a USB-A connector, an ATTiny45 or ATTiny85, and some appropriately-sized heat-shrink tubing to build something cased with the size of a flash drive.)
     
    FBnil likes this.

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