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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/esp-ledstrip.md | |
| parent | f752530692e7a3db2d75bc2c77b80839da64d5f3 (diff) | |
| download | blog-1f74c443405b2827217275bbdc428bd9320bb99a.tar.gz blog-1f74c443405b2827217275bbdc428bd9320bb99a.zip | |
Rework index page layout to include projects
Diffstat (limited to 'content/tech/esp-ledstrip.md')
| -rw-r--r-- | content/tech/esp-ledstrip.md | 26 |
1 files changed, 0 insertions, 26 deletions
diff --git a/content/tech/esp-ledstrip.md b/content/tech/esp-ledstrip.md deleted file mode 100644 index 1342a2f..0000000 --- a/content/tech/esp-ledstrip.md +++ /dev/null @@ -1,26 +0,0 @@ ---- -categories: -- embedded -date: 2016-06-05 -title: (Almost) Wireless LED strip controller ---- - -After a [failed attempt]({{< ref "music-led-visualisation.md" >}}), I succeeded in building a wireless analog LED strip controller. -<!--more--> - - - -The most important part in this setup is a 12V-3.3V regulator that passes 12V to the transistors and 3.3V to the WiFi chip. Instead of gluing inefficient Darlington transistors on top of CD cases, I used IRFZ44N MOSFETs with a heatsink each on a stripboard. The principle remains the same as with the Arduino. - - - -There are fewer long cables, which makes the controller more compact and less ugly. - - - -On the ESP8266 runs a web server with a simple API to change the colors and a UDP listener that allows the Hyperion server to connect. -The Arduino sketch can be found [here](https://git.schneefux.xyz/electronics/esp-ledstrip/src/master/esp-ledstrip.ino). - - - -A few weeks later, I spotted a mistake in my build. I used IRFZ44N transistors but I should have used IR**L**Z44N transistors instead. The difference is that the Z version needs a higher voltage at the base, so the LEDs were never bright and drew just about two thirds of the power at maximum brightness. |