- 树莓派 3
- 蟒蛇 2.7
- Sim800L
你好!连接到 gsm 模块时出现错误
这是我从rhydolabz得到的代码
import serial
import RPi.GPIO as GPIO
import os, time
GPIO.setmode(GPIO.BOARD)
# Enable Serial Communication
port = serial.Serial("/dev/ttyS0", baudrate=9600, timeout=1)
# Transmitting AT Commands to the Modem
# '\r\n' indicates the Enter key
port.write('AT'+'\r\n')
rcv = port.read(10)
print rcv
time.sleep(1)
port.write('ATE0'+'\r\n') # Disable the Echo
rcv = port.read(10)
print rcv
time.sleep(1)
port.write('AT+CMGF=1'+'\r\n') # Select Message format as Text mode
rcv = port.read(10)
print rcv
time.sleep(1)
port.write('AT+CNMI=2,1,0,0,0'+'\r\n') # New SMS Message Indications
rcv = port.read(10)
print rcv
time.sleep(1)
# Sending a message to a particular Number
port.write('AT+CMGS="+6xxxxxxxxx68"'+'\r\n')
rcv = port.read(10)
print rcv
time.sleep(1)
port.write('Hello User'+'\r\n') # Message
rcv = port.read(10)
print rcv
port.write("\x1A") # Enable to send SMS
for i in range(10):
rcv = port.read(10)
print rcv
以下是错误:
OSError: [Errno 11] Resource temporarily unavailable
raise SerialException('device reports readiness to read but returned no data (device disconnected?)')
serial.serialutil.SerialException: device reports readiness to read but returned no data (device disconnected?)
raise SerialException('write failed: %s' % (v,))
serial.serialutil.SerialException: write failed: [Errno 5] Input/output error
有时它发送
Hello User
Login incorrect
raspberrypi login:
有时
>
>
>
(100+ more '>')
Hello User
但几乎总是无法连接并给出错误 11
你也有这种经历吗?在我继续发送消息之前,有没有办法可以等待 gsm 连接?