Hi @naveen_kumar , Any success on dialing up connection on EC200U-CN? I have found a application note mentioning use of modem manager for EC200U-CN reference: EC200U-CN dial up try installing network-manager modemmanager and libqmi-utils udhcpc, ignore these packages if already installed or try using EC200 in ECM/RNDIS mode by configuring through at command AT+QCFG="usbnet"[,<net>], where net =1 is for ECM mode and 3 for RNDIS

@naveen_kumar UART1 is used for the terminal, perhaps try UART2

I'm successfully using an SPI wrapper I wrote several years ago for exactly the same kind of accesses (e.g. for MCP23S17). The routine to perform a read-then-write (or optionally, write-and-write-again) does quite the same as your sample code (see SPIBus::spidev_write_read() at lines 205ff in p44utils/spi.cpp. I didn't spot a functional difference to your code, so I'd assume your code should work (I know mine does, its in active use in many projects) Maybe there's a difference in how you open the spiFd? You can see that part in SPIBus::accessBus() at line 384ff. I'm using this code with both the MT7688 hardware SPI (which has a known hardware bug for full duplex, but that should not apply here, your read data starts after the write is over), and also with spi-gpio-custom software SPI. Hope this helps!

@Alberto-Brosich This is a nice article on debugging wifi issues: https://community.onion.io/topic/3306/faq-how-do-i-check-if-i-m-successfully-connected-to-a-wifi-network/5?_=1610027797289 The log should give you more information about what is going on. If you are associated but not getting an IP it may be an issue with your dhcp client, to confirm this set the proto to static and hard code the ip. After restarting the network see if you can ping your network router and 8.8.8.8 (google dns) The results of this will provide more info as to where your issue may lie.

Figured it out, some plugin was just causing it to fail on firefox. Thanks for the help I'm up and running again on my device.

@Nate hello, I'm working these days to end my project, could you check my work? please help me!! https://discourse.nodered.org/t/jsn-sr04t-serial-on-node-red-help/18272

@Ick-Sung-Choi At a glance this looks good. You might also want to add swap space either through a storage partition or a file. --Bill

I compiled a simple spi C program, as per: http://linux-sunxi.org/SPIdev#In_the_user_space PID PPID USER STAT VSZ %VSZ %CPU COMMAND 3768 1816 root R 900 1% 65% ./spi The %VSZ value remains constant. while (1==1){ buffer=(char *)spi_read(0x10,0x0A,11,file); //reading the address 0x100A for (i =0; i < 11; i++) { printf("%X ",buffer[i]); } } I am planning to make a daemon C program that stores reads from the SPI device in a /tmp/buffer file. Then I can read the file with Python.

@crispyoz, God bless you.

@James-Solderitsch Found it in /etc/awsiot where it needs to be named RootCA.pem. Then mosquitto needs to be restarted: /etc/init.d/mosquitto restart.

If you take a look at https://hologram.io/docs/guide/cloud/spacebridge-tunnel/, about half way down the page it explains how to connect without using the Spacebridge tunnel software.

Thank you for the suggestion with the power supply. This morning I have tried a number of different power supply units (including the official rPi3 plug and cable) and this allowed me to get the device setup and SD card expanded as per the guides. Issue now is the wifi looses connection to my home internet? The AP is still up but the 'second connection' to the router fails? If it helps, I use apple airport router and a number of AP. The wifi failed on both router/ap AND also failed when tethering to my mobile phone wifi hotspot? Now if I boot the device up with the ethernet expansion board connected (I use the expansion dock with my Omega2+) I can get network address/connectivity from my router/network. But again, remove the ethernet module and I am back to only having the ability to SSH/WebConsole via the Omega AP. Could this be power related?, The Omega is using the latest firmware available from the Onion repos and flashed using the onion guides. Many thanks

Thank you @luz . Unfortunately my Linux knowledge isn't "deep" enough. And I was wrong when I wrote "Omega2 is not among them" - eg. @Larry-Pinney and @WereCatf have already discussed here: Omega2 won't reboot?

@Douglas-Kryder all great information, thank you. Your guess of a new wifi driver release seems realistic. If it doesn't arrive by July (which would be nearly 1 year late) then it probably won't ever come. I'll start testing the official lede builds with Onion packages and report back my findings.

@ccs-hello Yeah... and it is not like I did not checked I am running the latest and "greatest".....:-(

@Maher if you search for gpio you will get a list of threads that cover alot of details on gpio with omega

A very high resolution board picture would help a lot.