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| author | schneefux <schneefux+commit@schneefux.xyz> | 2016-05-24 19:46:37 +0200 |
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| committer | schneefux <schneefux+commit@schneefux.xyz> | 2016-05-24 19:46:37 +0200 |
| commit | bd8464abb8deee0d31bb84cc47cd3335c0e688d5 (patch) | |
| tree | cea507ae72e1b5fda03ae6dc5c6d3cae2436a7cc /content/post/weather-snowman.md | |
| parent | 55439cd6455232057c9c08202c853c1f5201d79f (diff) | |
| download | blog-bd8464abb8deee0d31bb84cc47cd3335c0e688d5.tar.gz blog-bd8464abb8deee0d31bb84cc47cd3335c0e688d5.zip | |
move posts into 'tech' section
Diffstat (limited to 'content/post/weather-snowman.md')
| -rw-r--r-- | content/post/weather-snowman.md | 38 |
1 files changed, 0 insertions, 38 deletions
diff --git a/content/post/weather-snowman.md b/content/post/weather-snowman.md deleted file mode 100644 index c55edcb..0000000 --- a/content/post/weather-snowman.md +++ /dev/null @@ -1,38 +0,0 @@ ---- -categories: -- embedded -date: 2015-12-12 -title: Weather snowman - Embedded LED forecast ---- - -It's christmas time! As a kind of pre-christmas gift, I built an Internet of Things enabled snowman for one of my best friends. - -Like in [my last project]({{< ref "internet-is-magic.md" >}}), I used an ESP8266 again, some LEDs and an old acrylic snowman that I cut open. - - - -_The electronics were cheaper than the snowman._ - -Inside the snowman was a fading RGB led, a switch and batteries. Boring! - -I replaced it with the ESP8266, which had 3 LEDs attached to it (red, green, blue). Via a USB cable and a voltage converter, I powered it: - - - -_Luckily, you don't see how messy it really becomes once you put all this in that tiny snowman…_ - - - -Coding took a while. - -The ESP creates a wireless access point with a web server after powerup and asks you to enter your WiFi credentials. After first setup and whenever the module is started again, it connects to your wireless network and queries [OpenWeatherMap](http://openweathermap.org/) every hour for a 3 hour forecast. - -Depending on the forecast, the blue and red LEDs glow in different patterns. If a rainy day is to be expected, the top red LED lights up and the bottom blue LED fades in and out. A storm at night is displayed via a deep blue head and a blinking snowman's body. - -If you inspect [the source code](https://git.schneefux.xyz/?p=weather-snowman;a=tree), you'll see that there also is an Android app. The app simplifies the setup and runs a background service that makes your snowman's green LED flash on new notifications. - - - -_Gotta check my mails._ - - |