[Noisebridge-discuss] light show volunteer?

[Garrett Mace]

On Jan 21, 2013, at 1:38 PM, jim <jim at well.com> wrote:

> 
> 
>    Thanks for your reply. Seems right to me. 
> 
>    Also maybe LED types per chemistry, light temperature, 
> heat temperature, lumens per watt, electro-mechanical form 
> factors and availability, ways to vary light temperature 
> and brightness, applications for red- and for green- and 
> for blue-only LEDs. 
>    Maybe also various LED drivers (light engines and 
> otherwise), availability and near-future trends. 
>    Maybe cheap hacks (interesting things to do with 
> strings of LED Xmas lights), good tools, best practices, 
> how to adapt to 12VDC and 120VAC and maybe 240VAC (for 
> other nations' electrical grids), solar panel outputs 
> control interfaces (audio systems, light sensors...)? 
> 


Good stuff there. Anyone can blink an LED on an Arduino, but eventually you see people asking in the Arduino forums why their new 700mA LED doesn't light up when connected directly to an I/O. Scaling up offers plenty of challenges. Good power supplies are crucial. And all the best LED driver ICs are surface mount, with visible pins only if you're lucky.