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Author Topic: RX / TX always on  (Read 432 times)
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Flat Stanley
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« on: August 27, 2006, 03:57:06 pm »
 Bigger Bigger Smaller Smaller Reset Reset
I bought a batch of assembled usb boards

They seem to be working fine but when I power them from the power in, the RX / TX lights are always on. If I power by USB, they go off.

Any idea why???

Thanks!
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mellis
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« Reply #1 on: August 27, 2006, 05:02:05 pm »
 Bigger Bigger Smaller Smaller Reset Reset
It's normal, albeit a bit strange.  I'm not sure of the details, but basically since the FTDI USB chip isn't powered, the LED logic isn't connected and the LEDs flicker/turn on.
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« Reply #2 on: August 28, 2006, 06:24:02 am »
 Bigger Bigger Smaller Smaller Reset Reset
correct
you can consider it a "bug" in the current arduino board v3 which has been fixed in version v4
which will be called Arduino NG and will be available from the day Ars Electronica opens.


massimo
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