For us, the reason is that my co-founder and I (both are not hardware guys) were able to build a proof of concept in my garage and Arduino seemed like the best (easiest) choice. Since then, we hired a hardware guy who designed a custom PCB etc. HTTPS would be great but we don't transmit any personal data so it's not a high priority right now.
Alupis|11 years ago
You are sending people's orders around the web. I'd consider that "personal".
None-the-less, use SSL, there is little reason not to use it these days. And as others have pointed out, it's the only good and easy way to guarantee what you send to one of these printers is what it actually received (no carrier tampering of your packets, etc).
Just use SSL.
philh|11 years ago
(I don't actually know how much work would be involved, but goleksiak says they would really like to use it, so I assume it's not trivial.)
angersock|11 years ago