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| author | schneefux <schneefux+commit@schneefux.xyz> | 2019-11-24 17:18:36 +0100 |
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| committer | schneefux <schneefux+commit@schneefux.xyz> | 2019-11-24 17:43:52 +0100 |
| commit | 1f74c443405b2827217275bbdc428bd9320bb99a (patch) | |
| tree | d97b3c35280ab24fdffd9b099fca0f318239986b /content/tech/music-led-visualisation.md | |
| parent | f752530692e7a3db2d75bc2c77b80839da64d5f3 (diff) | |
| download | blog-1f74c443405b2827217275bbdc428bd9320bb99a.tar.gz blog-1f74c443405b2827217275bbdc428bd9320bb99a.zip | |
Rework index page layout to include projects
Diffstat (limited to 'content/tech/music-led-visualisation.md')
| -rw-r--r-- | content/tech/music-led-visualisation.md | 30 |
1 files changed, 0 insertions, 30 deletions
diff --git a/content/tech/music-led-visualisation.md b/content/tech/music-led-visualisation.md deleted file mode 100644 index 792d3ed..0000000 --- a/content/tech/music-led-visualisation.md +++ /dev/null @@ -1,30 +0,0 @@ ---- -categories: -- software -date: 2016-02-13 -title: Visualize music with MPD and an LED strip ---- - -With Arduinos, 5050 RGB LED strips, Hyperion and MPD on a Raspberry Pi I created a low cost party lightning environment. -<!--more--> - - - -_First tests show that the setup seems to work._ - -The setup consists of cheap RGB LED strips, 2 \* 5 meters, powered by two 12V 3.5A adapters and an Arduino with three TO-120 transistors each. -For strips with 30 LEDs per meter, you need 0.5A per meter. To be safe, add additional 10% to the total. So for my 10 meters, I could also have used a single adapter with at least 5.5A. -The Arduino's GPIOs are not nearly able to supply 5.5A \* 12V = 66W, so we need transistors - either darlington transistors or MOSFETs. [Adafruit](https://learn.adafruit.com/rgb-led-strips/usage) has more information and detailed explanations. After wiring, the Arduino needs to be flashed with a software that communicates with the Raspberry Pi. I adapted a sketch that implements the Adalight protocol, you can find it [here](https://git.schneefux.xyz/electronics/mpd-rgb-vis/src/master/adastrip.ino). - -The Raspberry Pi as server runs [Hyperion](https://github.com/tvdzwan/hyperion) which is AmbiLight-like. On the same host, MPD outputs music to speakers and a FIFO. I wrote a Hyperion plugin that processes the output of the FIFO and thus visualizes the music that is currently be played. The plugin and more installation instructions are [here](https://git.schneefux.xyz/electronics/mpd-rgb-vis). In my case, I started two Hyperion daemons, because I had two Arduinos connected and it is currently not possible to output the same data to two Hyperion compatible devices. - -Initially, I planned using an ESP8266 instead of the Arduino. I had not the right parts to step down 12V to 3.3V and tried to hack something together with LEDs and a 7V-3.3V-stepdown converter. -Well… that didn't work out quite well. I used Arduino Unos instead. - - - -_Do not reproduce, this fries the ESP…_ - - - -_The controller in use_ |