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Coin cell 'lilypad' board

Discussion in 'General Electronics Discussion' started by bigone5500, Jun 28, 2016.

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  1. bigone5500

    bigone5500

    712
    120
    Apr 9, 2014
    Bought this for the digispark board to find out that it will not power it. However, it will power an ATTINY85 with fade on a 3mm LED.

    20160627_211157.jpg
     
  2. Harald Kapp

    Harald Kapp Moderator Moderator

    10,069
    2,150
    Nov 17, 2011
    No wonder: the digispark board runs from >= 5V. You might use 2*lilypad coin cell boards in series, but have a look at the current requirements of the digispark board. your 2032s will drain rather quickly.
     
  3. bigone5500

    bigone5500

    712
    120
    Apr 9, 2014
    Surely they would. I simply didn't realize they required that much. I assumed since it had a tiny85 that it would run it.

    I left the tiny85 with a single led running the fade sketch. It has been going for about 21 hours now and shows no signs of getting dim.

    I really like these ATtiny chips.
     
  4. bigone5500

    bigone5500

    712
    120
    Apr 9, 2014
    So after a week of running 24/7, the LED is now dimming (accidental pun). Pretty good for a used battery.
     
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