FOSDEM-85 as thermometer with no external components


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Stefan Goetze submitted today cool project with FOSDEM-85 in our Project section.

https://www.olimex.com/Projects/

He is using the ATTiny85 internal chip sensor to measure the temperature, which he displays with LED blinks on Pinguino eyes. For this purpose he re-connected the Power LED to another port.

The document where he explains how he build it together with all source codes is here

Now FOSDEM-85 can be used as thermometer on your desk🙂

3 Comments (+add yours?)

  1. Stefan Goetze
    Mar 05, 2014 @ 02:17:52

    After using the FOSDEM-85 as a thermometer for 4 weeks I made some changes. Please read again.

    Reply

  2. Stefan Goetze
    Mar 31, 2014 @ 22:00:51

    Corrected different brightness of both LEDs with a software PWM. PWM control depends on VCC (going slowly down over time when CR2032 battery is used).
    VCC is measured in addition to the temperature without extra hardware, controls dimming of LEDs and can also be displayed using same LED-code as for temperature display.
    Description and sketch updated!

    Reply

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