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Is it possible to call a HTTPS web service on arduino UNO? I am trying to connect it through client.connect(ip,port). It said connected but never respond, ended up in TIMEOUT.

asked Jul 28, 2016 at 12:49
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  • 1
    You have some sort of Ethernet or WIFI interface don't you, which one? Commented Jul 28, 2016 at 12:52
  • ethernet shield Commented Jul 28, 2016 at 13:04

1 Answer 1

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No, it is not possible. The Arduino UNO is not powerful enough to encrypt the data for an SSL connection. On top of that the W5100 chip used on the Ethernet shield has its own IP stack built into it, and that stack doesn't support SSL either.

If you require SSL then it is recommended that you use one of the "dual" boards, like the Yun, and have the Linux portion of the board make the SSL connection for you using cURL.

answered Jul 28, 2016 at 15:28
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