I have bought 5 at a time.? Maybe $15.? I have bought about 12 of
them.
They are sealed individually with a part # 5401274.
I now have a few dead ones, that I must of made happen.? I have
yet to try to re-load the boot program?
Usually they just quit connecting to the PC as a recognizable
port.
I don't like using the regulator on them at higher voltages or
currents (like LCD Backlight current).
Ok for 9V or so with no big current loads on nano.? Otherwise
feed the 5V terminal with an off nano regulator.
Mike, WA6ISP
Here is eBay, that is where I bought mine.
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Jack:
Do you have a preferred supplier for the Nano modules?
James