If you are having problems getting your ESDK to display sensor readings on its screen, no mqtt data or issues with DesignSpark Cloud the chances are that there is a problem with your configuation file.
The file can be found in the Linux filesystem at: /boot/aq/aq.toml
It is written in a special format called TOML. You can edit the file by putting the SD card into a Windows / Mac / Linux PC and edit it there but make sure to use a plain text editor that doesn't introduce any hidden formatting characters.
The safest way to edit it, is to ssh into the ESDK, make a backup copy and use vi or nano editors:
sudo cp /boot/aq/aq.toml /boot/aq/aq.toml.bak
sudo vi /boot/aq/aq.toml
sudo nano /boot/aq/aq.toml
You can validate the file to check for syntax errors etc by installing a TOML validator at the command prompt:
pip3 install toml-validator
You can then check the file with the following command:
Here is the output from my working aq.toml
If there is a problem it screams - open the editor again and fix the problem, then re-validate until there are no errors.
Detailed documentation about configuring the ESDK can be found here: