For the past week I have been trying to connect my Disco board to Pelion with no success.
I have tried 3 different micro SD cards and I tried them before and after formatting them. I have tried 2 different SD card connectors as well. In addition, I used my phone as a hotspot to check it connects to it and I can confirm that the WiFi connection is there. However, when I go to Pelion Device Management I do not see my device listed.
I have tried deleting existing certificates and API keys to start from scratch but still nothing. In the compiler I can see the dev_credentials.c file so that exists as well. Lastly, when I check the SD card on my laptop using an adaptor, I don’t see anything saved on it (however I am not certain if I should actually see anything saved).
Any help is much appreciated as I have tried the tutorial many times already
I am using code from link
How you have connected SD card. is it like this.
refer attachment , i have connected in this way and it is working.
Thank you for your reply. I have retried it again now and it didn’t work. One note, I am connecting the SD card to 3.3V and not 5V.
Now I am thinking that my connector might be wrong, as it uses SDI and SDO instead of MISO and MOSI. However as far as I know, I can still connect SDI to MOSI and SDO to MISO so it shouldn’t be a problem.
Also I forgot to say that I checked on CoolTerm and I get gibberish. It’s different every time I reset here is sample of three resets:
You need 5v For SD card .
to See proper message on coolterm, select baudrate as 115200.
Excellent, I didn’t know about the baud rate, now I can see things on the terminal, thank you!
However I don’t see how I should use 5V for the microSD? The 4th pin from the left is 3.3V on my board, and my SD connector says 3.3V
Thanks for your help I managed to connect ,only with my hotspot though. Whenever I am trying to connect using the company’s WiFi I get Error -3011 . The good thing is that I can now get a feeling on how Pelion is which is good enough for now, I have to understand why I get that error though.
Plz provide MAC ID of your Discovery board (WiFi chip ) to your IT team to allow WiFi access in your office network, May be your Office is blocking unidentified WiFi MAC ID