pretty sure - the -g switch toggles the bcm numbers, and the Tx is GPIO14. I tested it with another GPIO I have attached to an led; to test it with GPIO14 I'd need to open up my machine - which I am about to do.
Because the sad news would be, that if the pin cannot be pulled down to 0V, the output seems to be shot.
I ran this and it made the rx led on the arduino blink:
So if you run this and you don't measure alternating voltages on you GPIO14 / pin 8, I'm afraid your nano is bad. Hate to be the messenger of sad news, hope it's not true.
Because the sad news would be, that if the pin cannot be pulled down to 0V, the output seems to be shot.
I ran this and it made the rx led on the arduino blink:
Code:
sudo sv stop pypilot
sudo gpio -g mode 14 output
while [ 1 == 1 ]; do sudo gpio -g write 14 1; sleep 2; sudo gpio -g write 14 0; sleep 2; done
So if you run this and you don't measure alternating voltages on you GPIO14 / pin 8, I'm afraid your nano is bad. Hate to be the messenger of sad news, hope it's not true.