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  3. Different atsha204a

Different atsha204a

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  • L Offline
    L Offline
    LastSamurai
    Hardware Contributor
    wrote on last edited by
    #1

    Hey, I just found out that there are different kinds of atsha204a chips (3 up to something like 8 legs). I have bougt 3 leg ones (VCC/GND/SDA). Does that one work for signing with mysensors?
    Do you know the differences? Thanks :)

    alexsh1A 1 Reply Last reply
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    • L LastSamurai

      Hey, I just found out that there are different kinds of atsha204a chips (3 up to something like 8 legs). I have bougt 3 leg ones (VCC/GND/SDA). Does that one work for signing with mysensors?
      Do you know the differences? Thanks :)

      alexsh1A Offline
      alexsh1A Offline
      alexsh1
      wrote on last edited by
      #2

      @LastSamurai Google is your best friend ;)
      http://www.atmel.com/images/atmel-8885-cryptoauth-atsha204a-datasheet.pdf

      These are just different form factors and yes SOT version (3 contacts) works with MySensors signing

      L 1 Reply Last reply
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      • alexsh1A alexsh1

        @LastSamurai Google is your best friend ;)
        http://www.atmel.com/images/atmel-8885-cryptoauth-atsha204a-datasheet.pdf

        These are just different form factors and yes SOT version (3 contacts) works with MySensors signing

        L Offline
        L Offline
        LastSamurai
        Hardware Contributor
        wrote on last edited by
        #3

        @alexsh1 Thanks. Yeah I found that datasheet but (not having read all 80 pages^^) I wasn't sure if having no SCL pin still works for signing.

        alexsh1A 1 Reply Last reply
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        • L LastSamurai

          @alexsh1 Thanks. Yeah I found that datasheet but (not having read all 80 pages^^) I wasn't sure if having no SCL pin still works for signing.

          alexsh1A Offline
          alexsh1A Offline
          alexsh1
          wrote on last edited by
          #4

          @LastSamurai That's what I discovered as well - sometimes one has to read maybe not all 80 pages but say solid 20 pages to learn more. Data sheets are life savers

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          • scalzS Offline
            scalzS Offline
            scalz
            Hardware Contributor
            wrote on last edited by scalz
            #5

            hi.

            mysensors is compatible with sot version only for the moment. other package not yet if I'm right. sot version isn't i2c ;) sot version use one pin only.

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