Thanks so much for your help. Making those changes to the code you last mentioned worked and it compiled successfully! I was able to upload to the board and that feels like a huge step. Thank you! I’m now monitoring the output from the board on VScode and everything seems to be in order except for the sim card. You can see in the attached txt file that the output values for the sim card signal strength are -9999. I have let the program run for a while now and nothing seems to be uploading to monitormywatershed. I checked the sim card on hologram’s website and it is active and connected to the network but not sending any data. So I assume there is either an error in the code or a problem with the physical connection with the board. Any idea where to start troubleshooting this?