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Sending / Receiving SMS using Raspberry Pi, Soracom Air SIM and ABIT AK-020
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# coding: utf-8 | |
'''Sending / Receiving SMS using Raspberry Pi, Soracom Air SIM and ABIT AK-020 | |
''' | |
import time | |
import serial | |
import re | |
class Sms: | |
def __init__(self): | |
self.pattern = re.compile('\+CMGL: [0-9]+,"REC UNREAD"') | |
self.serial = serial.Serial( | |
'/dev/ttyUSB0', | |
460800, | |
timeout = 5, | |
xonxoff = False, | |
rtscts = False, | |
dsrdtr = False, | |
bytesize = serial.EIGHTBITS, | |
parity = serial.PARITY_NONE, | |
stopbits = serial.STOPBITS_ONE | |
) | |
self.serial.write('ATZ\r') | |
self.check_response_isok() | |
self.serial.write('AT+CFUN=1\r') | |
self.check_response_isok() | |
self.serial.write('AT+CGDCONT=1,"IP","soracom.io"\r') | |
self.check_response_isok() | |
self.serial.write('AT+CMGF=1\r') | |
self.check_response_isok() | |
def __del__(self): | |
self.serial.close() | |
def wait_response(self): | |
time.sleep(1) | |
while self.serial.inWaiting() == 0: | |
time.sleep(0.5) | |
def check_response_isok(self): | |
self.wait_response() | |
r = self.serial.read(self.serial.inWaiting()).split('\r\n') | |
if len(r) < 2 or r[-2] != 'OK': | |
raise Exception(r) | |
def check_response_isprompt(self): | |
self.wait_response() | |
r = self.serial.read(self.serial.inWaiting()).split('\r\n') | |
if len(r) < 1 or r[-1] != '> ': | |
raise Exception(r) | |
def dispose_response(self): | |
self.wait_response() | |
self.serial.read(self.serial.inWaiting()) | |
def send_message(self, message, to): | |
self.serial.write('AT+CMGS="%s"\r' % to) | |
self.check_response_isprompt() | |
self.serial.write(message + chr(26)) # CTRL-Z | |
self.dispose_response() | |
self.check_response_isok() | |
def receive_message(self): | |
self.serial.write('AT+CMGL="REC UNREAD"\r\n') | |
self.wait_response() | |
r = self.serial.read(self.serial.inWaiting()).split('\r\n') | |
if len(r) < 2 or r[-2] != 'OK': | |
raise Exception(r) | |
messages = [] | |
is_message = False | |
for line in r: | |
if is_message: | |
messages.append(line) | |
if line and self.pattern.match(line): | |
is_message = True | |
else: | |
is_message = False | |
return messages | |
if __name__ == "__main__": | |
sms = Sms() | |
sms.send_message('Hello world!', '00000000000') # replace 00000000000 by the phone number you want to send SMS to. | |
print sms.receive_message() |
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