i tried using artemis thing plus to transmit data to satellite using ioat module. but the serial monitor says No satellite detection for this time interface. WHY that happens?
Are you out of doors, with a clear view of the sky? If not, that result is expected.
There are currently only seven satellites carrying ARGOS instrumentation. This means that there are frequently times when there are no satellites overhead and that you need to wait until the next satellite rises if you want to avoid wasted transmissions.