As part of my recent projects, I have started including OTA firmware updates for my ESP8266 devices. (Also known as FOTA)
Doing so is actually remarkably easy, thanks to the very good support for this exposed by the Arduino board support package. The hardest thing actually becomes getting the web server side set up, rather than the changes required on the device itself.
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There have been some website availability issues over the last 24 hours due to an issue with DNS records at my hosting provider.
The issue has now been resolved, and the site will be available once the updated DNS records are propagated through the Internet.
I apologise for any 404s users may have received during the outage.