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Weather Underground no longer providing free API keys

The open-source software that ThingPulse provides for its devices relies on weather data pulled from Weather Underground. The standard setup process involves creating a Wunderground API key (documented in our guides). The usage was free for up to 500 requests per day or 10 requests per minute.

In the evening of May 15th The Weather Company, a subsidiary of IBM, announced that it will no longer provide free weather API keys. There was no prior announcement and the change became effective immediately. It is unclear for how long existing keys will still be valid. As not even the tens of thousand of weather station owners who deliver their data to Wunderground for free will get a key to read their data back the uproar in the community is big.

For our customers this means that unless they already obtained a key from Wunderground they cannot use the ready-made software for the ThingPulse kits. We are very sorry, and furious, about this development but our hands are tied. The promise to our customers is that we will be working hard and not rest until we can offer an adequate alternative integration.

We started working on a new service integration on May 19th. Stay tuned.

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Max deep sleep for ESP8266

max deep sleep for ESP8266

In light of our recent power-consumption related posts 1 & 2 it seemed logical to ask ourselves about max deep sleep for ESP8266. Yet, it took a comment from a curious reader to set things in motion. I replied

…the maximum value for a 32-bit unsigned integer is 4294967295 or 0xffffffff. Hence, the max deep sleep interval appears to be ~71 minutes.

You can’t argue with that first statement but the second is a bit in the air without clear evidence. My co-founder Dani quite rightly then asked “are you sure, didn’t they change that recently?” (“they” being Espressif and/or the Arduino devs).

So then, what is the current max deep sleep for ESP8266 i.e. the maximum duration during which the ESP8266 can sleep deeply – and still wake up afterwards.

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