I am moving code from a 5 volt Arduino to a Pro Mini 3.3v clone from Gikfun.
I am not really good with electronics and components but the info I found seems to suggest I will need to change some parts so they play well at 3.3v. With that in mind I reduced all the resistors down to 100 Ohms. The LEDs used to be at 330 Ohms and the one connected to the transistor was 1K.
Everything is working OK, but I want to make sure that I don't damage the XBee radio or the Pro Mini.
Could you all let me know if the schematics / components are OK or suggest replacement values for what is wrong.
thanks in advance.