I want to communicate between Raspberry pi 3 B+ and GSM GPRS A6. I tried and I am unable to send data to GPRS Module from Raspberry pi.
Now, I know that GPIO serial port is disabled by default in newer Operating Systems (in my case Raspbian Stretch), so I have enabled it by adding following line in config.txt file,
Here's my Code:
import serial import time port = "/dev/ttyS0" COMM = serial.Serial(port, baudrate=115200) while(1): COMM.write("AT\r") print (COMM.read(5))
This command is supposed to return "OK", but it does not and nothing is printed. I am using python 2.7.
Some people suggested me to send data using this method,
COMM.write('AT' + '\r')
I tried but it didn't help.
There is no problem with my GPRS module. It works file with arduino. So, what am I doing wrong here?
Thanks in advance!