You are reading a single comment by @user58511 and its replies.
Click here to read the full conversation.
Espruino is a JavaScript interpreter for low-power Microcontrollers. This site is both a support community for Espruino and a place to share what you are working on.
@user58511
Ok, so now everything is 5v (except for the clock/data lines to the shift register) -- I have a 100uF cap - will that do? I'm ordering a set with 1000's in it. How do you know how big to use? What's a good ref for a total newbie (who's bad at math) for this kind of stuff? if I wanted to order optoisolators what kind would I order?