[TriEmbed] LED resistor/Ohm's law calculator

[jonjwolfe at anibit.com]

Thank you for the feedback so far! Internet Explorer has serious 
problems with the tool (I did test it at one point, but I guess it has 
been a while). Microsoft's Edge browser does better, but the "calculate" 
button is broken on it. I'll definitely fix it for Edge, and depending 
on what is the root cause of the IE problems, I may or may not fix its 
issues. It depends on how much work it is to fix or make work-arounds 
for a deprecated browser. Firefox, and Chrome/Webkit/mobile browsers are 
pretty heavily tested though. At the very least, I'll detect IE, and 
warn that it work. The page uses a lot of HTML5 features, and IE has 
always lagged behind in its HTML5 support.

--Jon



On 2015-10-25 18:54, jonjwolfe at anibit.com wrote:
> I wrote a little tool to compute current limiting resistor values for
> LED's in series.
> For many on this list, this is a pretty basic calculation, but I get
> asked about this type of setup often enough, and thought it would be
> fun to write a tool that calculated the resistor needed. (It can also
> calculate the other components of the Ohm's law equation as well). I
> had started this one a long time ago, and the recent Triembed Ohm's
> law talk, among other things, inspired me to finish it and finally put
> it up.
> 
> https://anibit.com/webtools/small/led_calculator/ [1]
> 
> Feedback is appreciated. I still need to do some validation on the
> inputs, it will let you put non-sense values in, such as negative
> numbers, etc.
> 
> I'd love to make a bunch of little tools like this on my site, though
> they do take a non-trivial amount of time to put together.
> 
> --Jon
> 
> 
> 
> Links:
> ------
> [1] https://anibit.com/webtools/small/led_calculator/