FONA 3G baudrate

Adafruit cellular platform - SMS and IoT over celluar

Moderators: adafruit_support_bill, adafruit

Please be positive and constructive with your questions and comments.
Locked
User avatar
ydezac
 
Posts: 11
Joined: Sun Oct 23, 2016 11:27 pm

FONA 3G baudrate

Post by ydezac »

Hi!

I use a ftdi adapter to connect the fona 3g and the raspberry pi. I use pyserial to send AT command, if i use a baudrate above 115200 i don't get any answer from the module. How do you manage baudrate above 115200 ?

Best regards

User avatar
cry4brk
 
Posts: 180
Joined: Tue Oct 09, 2012 3:14 pm

Re: FONA 3G baudrate

Post by cry4brk »

115200 is the maximum auto-baud rate. You have to use AT commands to set a higher baudrate. Check the datasheet for instructions on how to do it.

User avatar
ydezac
 
Posts: 11
Joined: Sun Oct 23, 2016 11:27 pm

Re: FONA 3G baudrate

Post by ydezac »

Thanks

User avatar
ydezac
 
Posts: 11
Joined: Sun Oct 23, 2016 11:27 pm

Re: FONA 3G baudrate

Post by ydezac »

When i change the baud with the command AT+IPR=XXX i don't get any answer from the module if XXX > 115200 :(

User avatar
cry4brk
 
Posts: 180
Joined: Tue Oct 09, 2012 3:14 pm

Re: FONA 3G baudrate

Post by cry4brk »

You first need to connect to the module with a maximum budrate of 115200. After that you enter the command AT+IPR=XXXX after that you need to send AT&W to store the baudrate (in case of powerloss) and close and re-open the connection with the new baudrate. The baudrate should pe suported by the GSM modem, USB 2 serial converter or any other device.

User avatar
ydezac
 
Posts: 11
Joined: Sun Oct 23, 2016 11:27 pm

Re: FONA 3G baudrate

Post by ydezac »

Thank you

Locked
Please be positive and constructive with your questions and comments.

Return to “FONA”