I have 2 Arduino boards. One is working fine but the other has a flashing light next to 'L' and I can't select the correct serial port (/dev/tty.usbmodemfd131) because it doesn't show up in the list and therefore can't upload any sketches. Can anyone help?

/dev/tty.usbmodemfd131

system October 13, 2012, 10:39pm 12

I'm hoping I'm not being stupid but I guess you need a photo!?

Topic		Replies	Views
Uno doesn't appear in Serial Port menu IDE 1.x	5	1801	May 5, 2021
Can't rewrite 8U2 bootloader IDE 1.x	10	5138	May 5, 2021
newbie...Uno coming up ATmega16U2 DFU in device manager IDE 1.x	11	3701	May 5, 2021
can somebody point me in the right direction IDE 1.x	4	1282	May 5, 2021
No usb connection IDE 1.x	3	2137	May 5, 2021