MicroPython Forum (Archive)

That makes sense. Still though, it is odd that disconnecting it causes the UART communication to be more consistent. Do you have any ideas as to why this might be?

So, I tried the lower baud rate and the level I put it at didn't seem to work. I think there is a command to trigger the baud rate sync on the gsm but I need to look into it more. I stopped going down that route because I noticed that the GSM was working very well and consistently at 9600 baud rate....

Hi guys. I hooked everything up again this morning and strangely the commands which were failing are now working. It is so hit and miss! Eventually I want to run the program in a mobile setting, so I would like to get it to a point where I can 99% trust it'll function :P @chuckbook - I am using a 3....

Hi pythoncoder, Firstly thank you very much for the reply! I must have missed the notification as I have only just seen it today. Yes, I doubt there is an issue with the pyboard UART, but it is strange that it works fine via my laptop (via screen /dev/.... 9600) and then fails when connected to the ...

Hi everyone! So, bit of a strange issue here. I am using the GSM SIM800l module for internet. (http://wiki.seeedstudio.com/images/4/46/SIM800L_Hardware_Design_V1.00.pdf) I have some code that has been tested with a Raspberry pi and also with my computer (via screen). The code is able to successfully...

Hi Gabi, I am using the SIM800l with a pyboard. I would be interested to hear what your experience was like with the SIM800l, as I am finding it to be very hit and miss when sending commands and trying to use it for internet. Sometimes it works, but sometimes it returns ERROR. I have tested all of t...