9 years, 7 months ago.

For BLE Nano Out-Of-The-Box blinky test: Be sure to look at LED on Nano, not LED on MK20 USB Board

Hi all,

I am new with mBed and BLE Nano; and the blinky program is for people who are new to mBed and Nano.

I spent 1/2 hour today trying variations of the blinky program in mBed compiler because the LED always seemed to be solid, not blinking.

In the end the problem was this: I was looking at the LED on the MK20 USB Board, not the LED on the BLE Nano. Ha ha.

When BLE Nano is mounted to MK20 in the manner pictured in all Nano docs, the Nano LED is hidden within walls created by the headers. And the Nano LED is upside-down when the programming board is plugged to a standard USB slot.

The Out-Of-The-Box instructions could be a bit more specific at "4. You will see the LED on the BLE Nano starts blinking."

Regards,

Owen

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