I received a Dragino TrackerD device and successfully connected it to TTN.
Currently I try to finetune the settings via serial connection to the device from my PC. I was able to connect and I see regular status messages in the putty window.
However, if I try to Issue an AT command (or any input at all), all I get is
“ERROR”
Do I miss something?
What do I need to do to successfully configure the device with the AT command set?
I have the same issue - you have a solution yet?
I am using TeraTerm, 112500 baud, 8,N,1, no flow. I get an ‘ERROR’ response on every character that I type…
You could try to “pre-type” the entire command in a text editor, then copy-paste it in one go to the serial terminal. Perhaps even with the carriage return / line feed included.
Doesn’t help. It seems to react with ‘ERROR’ to every single character that I type.
I tried resetting the device - I do see al kinds of texts scrolling by, so data reception seems ok. But I cannot type AT-commands
Maybe you should try another terminal prog?
I use HTerm v0.8.9 (DELL 7300 with Win10pro, 64bit). I had to fiddle around a little bit and now it is working for me.
My settings:
Port Settings: Baud: 112500, Data: 8, Stop: 1, Parity: None, no flow
To send an AT Command as group of characters, can use the “Serial Port Utility” from
alithon dot com
and for Dragino TrackerD choose XON/XOFF for version1.4.4 and above
Was having the same issue on MacOS with screen utility…specifically, seeing ERROR after each key press.
Then, saw this in section 8.8 of the docs: “*Need to enter the entire command at once, not a single character. User can open a command window or copy the entire command to the serial console.”
*
ChatGPT helped me find one easy way to do this:
In one terminal window, open a serial connection just as you (presumably) had already been doing, but add the -S <SESSION_NAME> where session name is anything you want, e.g. screen -S tracker /dev/cu.usbserial-58560051271 115200
In a separate terminal, issue serial commands “all at once”, for example, this is how I printed the current device config: screen -S tracker -X stuff $‘AT+CFG\r’ where stuff is just an arbitrary identifier for the quoted command
