sixfab / atcom

ATCom

​ AT commands are the instructions used to control and communicate with the cellular modems. In order to, send AT commands to a cellular device, one needs to check several parameters and might need a serial monitor tool. ATCom is a command-line interface tool that makes AT command operations easier. ​

Installation

​ pip3 is required to install the atcom. pip3 can be intalled by ​

sudo apt install python3-pip

​ Use the package manager pip3 to install atcom. ​

pip3 install atcom

​

Usage

​

$ atcom [OPTIONS] AT_COMMAND

Warning:

If you need to send " or ' character, you should use escape character \ before it.

Example:

atcom AT+CGDCONT=1,\"IP\",\"internet\" ​

Examples

​ Running atcom without --port parameter, scans for available ports, and selects a valid modem port if available. ​

$ atcom AT

​ or ​

$ atcom --port /dev/ttyUSB2 AT

​

Configuration File

​ Configuration file(configs.yaml) can be created for persist args. ATCom first checks the current working directory for the configs.yml to read the arguments from. The path of the configuration file can also be specified using the --config parameter. ​ The configuration file must be in yaml format, for example: ​

port: /dev/ttyUSB2
baudrate: 115200
timeout: 10

​ The keys, config file can contain:

• port (str)
• baudrate (int)
• timeout (int)
• rts_cts (boolean)
• dsr_dtr (boolean)
• verbose (boolean) ​

Parameters

​

	default	description
-p / --port	-	PORT of modem
-b / --baudrate	115200	Baudrate for serial communication
-t / --timeout	10	Communication timeout
-c / --config	./configs.yaml	Configurations file Path
-v / --verbose	-	Enable full log output
--rts-cts	-	Enable RTS-CTS mode
--dsr-dtr	-	Enable DSR-DTR mode

atcom's Issues

atcom cannot connect to Telit modem

I installed atcom as described, however I cannot connect to the Telit modem. Any AT commands result in the same error.

pi@raspberrypilte:~ $ atcom --port /dev/ttyUSB2 -b 115200 AT
[ERR]   Couldn't open serial communication
pi@raspberrypilte:~ $ 

If I run the connection via minicom minicom -D /dev/ttyUSB2 -b 115200 , everything works.

RasperryPI Bullseye, Python 3.9.2 installed.

EDIT:
It found a connection at /dev/ttyUSB3. I accidentially tried USB2 since this is the right port address when I use minicom.
However, the the automatic port scan seems not to work as I always need to add the -p option.

Baudrate cli argument does not work

Baudrate setting from the cli does not work.

root@9854bd3:/# atcom -v AT -p /dev/serial0 -b 230400
[INFO]  Configs file not found, reading properties from args
[INFO]  Port property specified as argument, overriding config file
[INFO]  Timeout property not found, using default (10)
[INFO]  Baudrate property not found, using default (115200)

<  AT

>  OK
>

I can set the value from the config though.

I use the atcom in my raspberrypi. But 'qiopen' is not work..

In my computer

AT+QIACT=1
->OK
AT+QIOPEN=1,0,"TCP","110.165.17.3",9091,0,2
->CONNECT

is success.

But fail NO.2 in my raspberry pi4 bash.

atcom AT+QIACT=1
->OK
atcom AT+QIOPEN=1,0,"TCP","110.165.17.3",9091,0,2
->ERROR

what am i wrong?

---

atcom AT+QIGETERROR
->+QIGETERROR: 552,invalid parameters
OK

i guess i use same parameters..

Timeout issue when sending SMS via AT+CMGS

When I try to send text messages via "atcom AT+CMGS="my_phone_number", "CR", "Text message text", I always get a timeout error. I'm able to send other AT commands without issue. I think the problem has to do with how atcom terminates the message stream, but I'm not certain what I need to change to fix this. Any help would be greatly appreciated!