/diy/ - Do It Yourself

So, here is my current try at doing SMD-board out of my breathing LED. Got it down to 56mm x 20mm. Bought the model im gonna light up and measured everything up, with some cutting I get 8cm x 2cm x 2cm area for my PCB to sit on, with nice little access door for on/off-swich. I also managed to fit 4xAAA-battery holder in there, so I guess voltage im gonna use is 6V.

LTSpice is telling me that my whole board with 4+1 LEDs takes little over 100mA on average. That translates to something like 8 hours of battery life with alkaline AAAs. And LTs version of 555 is ideal so I believe there is going to be some more current going through the circuit in real life. Im gonna test this on breadboard before burying it, but I started to look at microcontrollers as an alternative.

Now I only need to learn how uCs work, find one that fits my needs, hope that I can program it with arduino and make circuit around it.