better look after eeprom, reduce unnecessary writes / clearings

Nixes / iotHubLib

a library for the esp8266 arduino platform that allows easy writing of sensor node programs for the iotHub platform

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better look after eeprom, reduce unnecessary writes / clearings #10

Closed Nixes closed 7 years ago

Nixes commented 8 years ago

Specific circumstances:

[ ] If server 404's and only one nodes registration fails continuously. Then the working nodes id will constantly get overridden.
[ ] Clearing of first boot bit when node is not recognised by server and registration succeeded anyway.

Nixes commented 7 years ago

Can solve this by reading boot bit into variable and reading that instead. We can then use this to check for changes before writing a bit into eeprom.