MightyOhm.com

As a follow-up to everything in this thread, closer examination of the Asus wall-wart reveals that it seems to be a switching power supply, given that it can operate from 120 to 240 volts and 50 or 60 Hz. From everything I've read, a switching power supply provides "clean enough" power so ...

Thanks.

I was just checking on standard USB specs and I learned that the voltage to a device is regulated, as you've suggested. So perhaps I can draw upon the USB power to run the AVR assembly.

I've certainly learned a lot through this project.

I may be confusing some issues, Jeff. My understanding is that the average wall-wart does not supply what's regarded as filtered power and that the advertised voltage can vary quite a lot. Sparkfun's tutorial on building a voltage regulator really stresses that point. It is also my understanding (or...

Glad I asked. To program the AVR, I used the USBTiny kit for Ladyada.com, and I'm pretty sure that didn't have any filtering the power from a USB port. Would you know what others have done about power? I'm not sure how hard it would be to try and use power off the router mainboard. I'd prefer not to...

Thanks for the reply, Jeff. Your comment matched my concern about a power source. I was looking at the pictures you posted of your radio once installed within the custom cabinet. I concluded that your were using the 5V output of the dual-voltage power supply. Do I have that right? If so, does that P...

Hi.

Just curious if anyone has considered possible side-effects of using 5V unfiltered power on this project. I haven't experienced any, but was just wondering if it could be an issue at some point.
Thanks.