(hope I'm posting it on the right forum...)
I'm planning an Home Automation system using the Arduino Board.
I looked A LOT around the internet and still couldn't find specifically what I was looking.
I need two things which are theoretically pretty similar but I know they are not... (different electronics).
I'm interested in using the Arduino to trigger a 12v circuits in order to connect 3w/10w RGB LEDs (for "mood" light) using an external power source (so I can control many of them).
a sample of something like this is this:http://www.usledsupply.com/shop/rgb-mini-amplifier-ttl.html
I guess it shouldn't be that difficult and I rather build this than buy this... (cheaper and MORE FUN!).
The second thing is doing the same but with a regular 220v Incandescent light bulb, so I can control my home lights.
I know I should be using an SSR but I also understand that an SSR alone cannot do the job because It has to be connected to some circuit that identifies Zero-Crossing for it to work well.
I know all about being careful dealing with high voltages.
I guess there is no problem using an external TLC5940 to get more PWM exits for controlling more outputs. the Arduino should only be the trigger.
I wandered all around different electronics sites, Arduino sites and more and couldn't find a SPECIFIC circuit (and a sketch). in each of the sites there are many different recommendations and on every reply that someone wrote, there are at least 2 other replies saying that is should be different.
Like I said, nothing specific... (I'm sure there are, but couldn't find'em).
I would be more than happy if someone can guide me and share some sketches of working (or known as working) circuits and components I should buy in order to build them.
after all, I'm not looking for "squeezing the juice" out of the Arduino, only controlling other circuit using PWM...
it's only 5v controlling 12v circuit (which I believe is easier).
and a 5v controlling 220v circuit.
Thank You all very much!