Hi,
I have bought a couple of NodeMCU boards out of which a few of them do not flash, the blue LED right next to the antenna keeps blinking at about 3 or 4 times every second.
When attempting to flash via Arduino IDE, the blue LED blink rate changes when the IDE attempts to flash.
There are others in the same lot which show no such problem. The working ones and not working ones both look alike.
Can anyone help me?
Thanks,
WI