@Joris-Mulliez Just sorted it. It is connected to the fast-gpio seg fault on the latest firmware.
https://community.onion.io/topic/1208/do_page_fault-sending-sigsegv-to-fast-gpio-for-invalid-read-access-from-00000600
I downgraded the firmware as shown in the above post and its now working fine.

This fixes the cloud connect issue, but I still have an issue with expled not working for the RGB led on the expansion board. I have to downgrade the firmware to 0.1.6-b137 in order to get it working, and then I can;t connect to the cloud! Can we have an upgrade that fixes both issues please?

@Joris-Mulliez Just sorted it. It is connected to the fast-gpio seg fault on the latest firmware.
https://community.onion.io/topic/1208/do_page_fault-sending-sigsegv-to-fast-gpio-for-invalid-read-access-from-00000600
I downgraded the firmware as shown in the above post and its now working fine.

Thanks for this. Just started trying fast-gpio on a brand new Omega2 and getting seg faults. I'll try the roll back.

Thanks for that. Presumably the app only works (fully) for Omega1 board at present. I did try a led in output 1 and it controlled that OK. so I suppose I can use the first few pins with it.

@Robin-Newman found /usr/bin/expled and tried
/usr/bin/expled 0xf21133
this printed
setting leds to f21133
duty: 6 94 80

on the screen, but didn't light the led at all.
so still not solved.

I am trying to control the rgb led on the expansion board from a terminal.
I have found details of the expled command here https://github.com/OnionIoT/wiki/blob/master/Tutorials/Controlling-RGB-LED.md
but it doesn't seem to be available
which expled
doesn't find anything. Do I have to install a module to get hold of it?

The pin identifications on my expansion board (which arrived today) don't match the pinouts in the GPIO Tool console app. On the row of pins next the edge of the board this has
gnd 3.3V n/c 3 2 RX1 TX1 9 8 7 6 1 0 rst gnd

where as the app has
gnd 3.3v 2.0v 26 23 14 13 12 8 7 6 1 0 rst gnd

Which should I believe? Are they different versions? At present dones;t look safe to use pins other than those that match.

On the second row of pins the two agree.