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Tagged: GSM/GPRS Pi4
This topic contains 3 replies, has 2 voices, and was last updated by ensar 2 months, 1 week ago.
Has anybody used in Pi 4 / Raspbian kernel 4.19.58?
Pi 4 does not recognize that shield.
ERROR | Write timeout |
___FATAL-ERROR____ GSM shield (Serial ttyAMA0) not answering
We have used that shield without problems in Pi 3
Where exactly do you get this error?
We tried this:
SERIAL_PORT = “/dev/ttyAMA0”
ser = serial.Serial(SERIAL_PORT, baudrate = 9600, timeout = 5, write_timeout = 5)
print(‘Wait, will send – Reset+disable Autoanswer :’)
reply = ser.read(ser.inWaiting())
print(‘ERROR |’, sys.exc_info(), ‘|’)
print(‘___FATAL-ERROR____ GSM shield (Serial ttyAMA0) not answering ‘)
Have you made a PPP connection?
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