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content/blog/led-characterization/index.rst
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---
title: "LED Characterization"
date: 2018-05-02T11:18:38+02:00
summary: >
Recently, I have been working on a `small driver`_ for ambient lighting using 12V LED strips like you can get
inexpensively from China. I wanted to be able to just throw one of these somewhere, stick down some LED tape, hook
it up to a small transformer and be able to control it through Wifi. When I was writing the firmware, I noticed that
when fading between different colors, the colors look *all wrong*! This observation led me down a rabbit hole of
color perception and LED peculiarities.
---
Preface

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content/blog/wifi-led-driver/index.rst
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title: "Wifi Led Driver"
date: 2018-05-02T11:31:03+02:00
summary: >
After the `multichannel LED driver`_ was completed, I was just getting used to controlling LEDs at 14-bit resolution.
After the multichannel LED driver was completed, I was just getting used to controlling LEDs at 14-bit resolution.
I liked the board we designed in this project, but at 32 channels it was a bit large for most use cases. Sometimes I
just want to pop a piece of LED tape or two somewhere, but I don't need a full 32 channels of control. I ended up
thinking that a smaller version of the 32-channel driver that didn't require a separate control computer would be
handy. So I sat down and designed a variant of the design with only 8 channels instead of 32 and an on-board ESP8266_
handy. So I sat down and designed a variant of the design with only 8 channels instead of 32 and an on-board ESP8266
module instead of the RS485_ transceiver for WiFi connectivity.
---