You Gotta Have Heart
It’s one of an embedded developer’s worst nightmares: You have devices in the field, on remote sites, where you don’t have access to local staff to serve as your hands. You’re far from the devices, maybe on a different continent, even, and now you have a device that’s no longer responding to network requests, or not sending event data as expected.
It is a terrible feeling.
If you’re using Nerves to build firmware, you have tools at your disposal to help keep your devices online.
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