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Posted: **Mon Jul 11, 2016 9:55 pm**

When I push the power on a rambo board
yellow diode flashing , marked as TR.

Is this ok ?

Posted: **Mon Jul 11, 2016 11:22 pm**

TR means Transmit receive. Is it connected to anything via USB, such as a computer? Is it powering on in a particularly strange pattern?

Posted: **Tue Jul 12, 2016 4:56 am**

connected to computer

Posted: **Tue Jul 12, 2016 10:08 am**

Then that's completely normal. No worries about it.

RAmBO yellow diode flashing