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For a while now I wanted to improve my weather station project by adding more sources of information that can be displayed. But these sources I had in mind either used SSL (https) or delivered huge JSON responses. SSL is not yet supported on the …
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I recently stumbled on a feature that hopefully soon will be integrated into the stable release of the ESP8266/Arduino environment: a file system interface. Low-Level: EEPROM Up until now and currently your best bet for data persistence in the stable release you could use the …
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Twice a year the company I work for (Netcetera) organizes a retreat for programmers, usually in the mountains. In the Spring issue this year we went to a resort in a beautiful mountain region. Inspired by the wonderful landscape I managed to write a library …
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Checkout my presentation about IoT:
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I recently received two of these shiny new Wifi modules from China and had to test them out. In many posts around the web they say you should use a serial-to-usb adapter to send some AT commands to the module and set it up with …
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It took me far too long to get this working, but I finally did it: a small Arduino compatible board called “DevDuino” running on a CR2032 cell battery is sending temperature and battery voltage over the air to another Arduino board which records it. Sounds …
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In a later blog post I will describe how I am using a TL-MR3020 router as low-cost wifi shield for my Arduino to transmit sensor data over wifi. In this post I just want to show how you can script a restart of the arduino …
