I am testing the Arduino baseline example using Sparkfun LTE Cat.m1/NB-IoT shield, Hologramsim. I tried to test 00_Register_Operator, 02_TCP_Send_Hologram and tried 03_TCP_Receive_Hologram but failed. 02_TCP_Send_Hologram is successful and 03_TCP_Receive_Hologram wants to know the cause of failure.
Hologram sim is using 1MB for free.
The site I used is this.
https://learn.sparkfun.com/tutorials/lte-cat-m1nb-iot-shield-hookup-guide/all#example-2-send-a-hologram-message
Examples or libraries can be found by searching 'SparkFun LTE' in the Library Manager of Arduino.
@se1999, your topic has been moved to a more suitable location on the forum.
More details would be appreciated; e.g. how does it fail, which Arduino is the board connected to etc.
I use Arduino Uno. I connected everything except AREF pin as shown in the picture below.
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