Today a 5 meter reel of LEDs arrived. Here are the results.

After building my sketchy micro-controller based AC light dimmer, I noticed that while fading though the dimming levels, it wasn’t a linear response. There was a noticeable “stall” in the fading around the mid-range of values. So to fix this, and waste a perfectly good Thursday night, I had the micro-controller watch the response of the light with a photo-resister and see what the problem was.

Keeping and eye on the light

The resulting response was nowhere near even. So I plotted the values and its derivative.

So to adjust the problem, I altered the distribution of the fade values. By decreasing the density of points around the “delay”, which was around 9000 on a scale of 0 to 16000, I was able to smooth out the fade.

Resulting distribution

Hooked the Arduino up to an LED controller board utilizing TLC5940 LED driver chips.  The Arduino now has control of all three RGB channels.

Just started playing with my Arduino micro. Rewrote the LCD4Bit library to work with an old HD44780-based 40×4 character LCD I had laying around.