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by fulafel 2702 days ago
Slight aside, anyone know why all the supposedly iot-oriented small arduino devices are IPv4-only? Is everyone deploying them in some kind of NATs + port forwards / upnp system or tunneled overlay IPv4 network using external gateway devices?
2 comments
ungzd 2702 days ago
Seems that both "official" SDK for esp8266 and its Arduino port support ipv6 out of the box: https://github.com/esp8266/Arduino/pull/5136.

esp8266-nonos-sdk/esp8266-rtos-sdk/esp8266-arduino uses lwip as tcp/ip stack, which supports ipv6.

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fulafel 2702 days ago
Awesome. The Arduino port "IPv6 support" issue was closed 9 days ago too. No other IPv6 related issues reported yet. Off to look for reports from elsewhere of people using it...

The Espressif 8266 SDK docs make no mention of IPv6, does it really work there? (https://www.espressif.com/sites/default/files/documentation/... linked from https://www.espressif.com/en/products/software/esp-sdk/resou...)

I only found one example for the Espressif-provided RTOS, at https://github.com/IPv6-ESP8266/IPv6-ESP8266 . The example says it only works in a IPv6-only network and it's using link-local addresses, which kind of defeats the point of IPv6. No idea if these reflect limitations of the stack. It's a start at least :)

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michaelbuckbee 2702 days ago
Genuine question: are Arduino's really for IOT or for prototyping? Not an expert, just read a lot about startups starting with a RaspPI or Arduino prototype for the Kickstarter or something and then getting "real" dedicated hardware for production.
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PascLeRasc 2702 days ago
It is common to start with these before the Kickstarter, just to get a proof of concept, but those boards (and the ESP8266) absolutely aren't for production. Raspberry Pis are terrible since the only way to interface with them is over a single USB 2.0 port - and that's shared with the 100M ethernet and the SD slot.

You might see an ATMega328p chip isolated, and that's "good enough" for hobbyist projects where you just want to make HID easier on yourself. But I think most shops that need one of these three would be much better off with a STM32-series chip - they cost pennies compared to consumer boards, run on microamps, and have much better documentation.

It'd be a huge red flag for me if I was interviewing with a hardware startup and they said they wanted to put Arduinos into mass production.

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bhouston 2702 days ago
Arduinos are not for production, but for prototyping, hobby projects.
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