Post by karlkawano on May 11, 2024 22:40:14 GMT
I have been trying to get working for several days. Originally, I just used the demo_LTE sketch and stacked the shield to the Arduino board. It would work for a while meaning that I would pull the CCID and it would be properly returned. I tried something else such as testing to see if I received a text message I sent to the hologram phone number I set up. It didn't receive anything. So, I tried to pull the CCID again and it was blank. I didn't understand what was going on but below is the reason I wasn't receiving the CCID or anything else.
Next, I wanted to remove the Arduino as a cause so I removed the sim7000A from the Arduino and connected the usb directly so see if I could send it AT commands. I downloaded the usb drivers and went into the device manager and updated them. The new COM ports were now available and I just tried to send it AT commands via putty. This initially worked and I was able to send the board a couple AT commands such as receive board type but then I was disconnected. I then saw what was going on. At any time, the device manager would refresh and the com ports were gone like I unplugged it. Then anywhere from a couple seconds to maybe a few minutes, they would pop back in device manager and then at some point disappear. This repeats continually.
I tried:
- multiple USB cables to eliminate those as the issue.
- multiple computers to eliminate that as a problem. The ports would pop up for a while and disappear then reappear after a while on both systems.
- I have battery attached
I'm really thinking it's a problem with the board but wanted to see if anyone else had any thoughts.
Thanks,
Karl
Next, I wanted to remove the Arduino as a cause so I removed the sim7000A from the Arduino and connected the usb directly so see if I could send it AT commands. I downloaded the usb drivers and went into the device manager and updated them. The new COM ports were now available and I just tried to send it AT commands via putty. This initially worked and I was able to send the board a couple AT commands such as receive board type but then I was disconnected. I then saw what was going on. At any time, the device manager would refresh and the com ports were gone like I unplugged it. Then anywhere from a couple seconds to maybe a few minutes, they would pop back in device manager and then at some point disappear. This repeats continually.
I tried:
- multiple USB cables to eliminate those as the issue.
- multiple computers to eliminate that as a problem. The ports would pop up for a while and disappear then reappear after a while on both systems.
- I have battery attached
I'm really thinking it's a problem with the board but wanted to see if anyone else had any thoughts.
Thanks,
Karl