i tried
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@ -5,7 +5,7 @@ import time
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import machine
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from machine import Pin
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from config import CELLULAR_APN, CELLULAR_STARTUP_TIMEOUT, TRACCAR_CONN_MODE
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from config import CELLULAR_APN, CELLULAR_STARTUP_TIMEOUT, TRACCAR_HOST
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from lib.logging import logger, LogLevel
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from lib.runtime import timeout, uTimeoutError, run_with_timeout
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@ -51,12 +51,12 @@ class CellularModem:
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await self.swriter.awrite(f'{command}\r\n')
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for i in range(10):
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raw_line = await self.sreader.readline()
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print(raw_line)
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if len(raw_line.decode().strip('\r\n')) > 0 and raw_line != f'{command}\r\r\n'.encode():
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lines.append(raw_line)
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if raw_line == b'ERROR\r\n':
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raise ModemErrorResponse(code=(command, lines))
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if len(lines):
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print(raw_line)
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if expecing_plus:
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if lines[-1].decode().startswith('+'):
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break
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@ -121,6 +121,7 @@ async def cellular_wait_cpsi():
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async def cellular_wait_creg():
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# https://community.hologram.io/t/sim7600-in-ovms-board-t-mobile-registration-denied/4616/12
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async def check():
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resp = await cellular.send_command('AT+CREG?')
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if len(resp) == 2 and resp[0].startswith('+CREG: '):
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@ -220,7 +221,7 @@ async def start_modem():
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for cmd in cmds:
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while True:
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init_resp = await cellular.send_command(cmd)
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logger('\n'.join((x for x in init_resp if x != 'OK')), source='CELL', level=LogLevel.error)
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logger('\n'.join((x for x in init_resp if x != 'OK')), source='CELL', level=LogLevel.info)
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if init_resp[-1] != 'OK':
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await asyncio.sleep(0.1)
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else:
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@ -252,10 +253,10 @@ async def start_modem():
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continue
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try:
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await cellular.send_command(f'AT+CGSOCKCONT=1,"IP","{CELLULAR_APN}"', require_ok=True)
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await cellular.send_command(f'AT+CGDCONT=1,"IP","{CELLULAR_APN}"', require_ok=True)
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await cellular.send_command('AT+CSOCKSETPN=1', require_ok=True)
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await cellular.send_command('AT+CIPMODE=0', require_ok=True)
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# await cellular.send_command('AT+CNMP=38', require_ok=True)
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await cellular.send_command('AT+CNMP=38', require_ok=True)
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await cellular.send_command('AT+NETOPEN', require_ok=True)
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break
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except ModemErrorResponse as e:
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@ -274,8 +275,21 @@ async def start_modem():
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async def cellular_start_http():
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if TRACCAR_HOST.startswith('http://'):
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code = 'AT+HTTPINIT'
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elif TRACCAR_HOST.startswith('https://'):
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code = 'AT+CCHSTART'
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else:
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raise Exception
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try:
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await cellular.send_command('AT+HTTPINIT')
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if TRACCAR_HOST.startswith('https://'):
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await cellular.send_command('AT+CSSLCFG="sslversion",0,4')
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await cellular.send_command('AT+CSSLCFG="authmode",0,0')
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await cellular.send_command('AT+CSSLCFG="ignorelocaltime",0,1')
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await cellular.send_command('AT+CSSLCFG="enableSNI",0,1')
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await cellular.send_command('AT+CCHSET=1')
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await cellular.send_command('AT+CCHSSLCFG=0,0')
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await cellular.send_command(code)
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return True
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except ModemErrorResponse:
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return False
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@ -292,25 +306,6 @@ async def start_modem_task():
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except uTimeoutError:
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await asyncio.sleep(10)
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continue
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if TRACCAR_CONN_MODE == 'http':
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await asyncio.sleep(0.5)
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success = False
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for i in range(30):
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httpinit = await run_with_timeout(func=cellular_start_http, timeout_sec=5)
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if httpinit.failure:
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logger('AT+HTTPINIT timeout', source='CELL', level=LogLevel.error)
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await restart_modem()
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continue
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if not httpinit.result:
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logger('AT+HTTPINIT failure', source='CELL', level=LogLevel.error)
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await restart_modem()
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continue
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else:
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success = True
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if not success:
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continue
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break
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while True:
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@ -320,12 +315,17 @@ async def start_modem_task():
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gc.collect()
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await cellular_send_http('http://postman-echo.com/ip', 'get')
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cellular.uart.write('AT+CIPOPEN=0,"UDP","64.227.105.164",10001,8000')
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data = 'Hello!!'
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cellular.uart.write(f'AT+CIPSEND=0,{len(data.encode())},"64.227.105.164",10001')
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await asyncio.sleep(0.1)
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cellular.uart.write(data)
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await cellular.send_command('AT+CIPCLOSE=0')
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# TODO: loop to reconnect modem
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@timeout(10)
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@timeout(30)
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async def cellular_send_http(url: str, method: str, data: str = None):
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m = method.upper()
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if m == 'GET':
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@ -337,22 +337,55 @@ async def cellular_send_http(url: str, method: str, data: str = None):
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else:
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raise Exception
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await cellular.send_command(f'AT+HTTPPARA="URL","{url}"')
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_, resp = await cellular.send_command(f'AT+HTTPACTION={mode}', expecing_plus=True)
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# for i in range(30):
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# httpinit = await run_with_timeout(func=cellular_start_http, timeout_sec=5)
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# if httpinit.failure:
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# # logger('AT+HTTPINIT timeout', source='CELL', level=LogLevel.error)
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# await restart_modem()
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# continue
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# if not httpinit.result:
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# # logger('AT+HTTPINIT failure', source='CELL', level=LogLevel.error)
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# await cellular.send_command('AT+CRESET')
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# # await restart_modem()
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# # break
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_, status_code, data_len = resp.strip('+HTTPACTION: ').split(',')
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if status_code != '200':
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logger(f'HTTP {m} failed: {status_code}', source='CELL', level=LogLevel.error)
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return
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await cellular_start_http()
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if TRACCAR_HOST.startswith('http://'):
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await cellular.send_command(f'AT+HTTPPARA="URL","{url}"')
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_, resp = await cellular.send_command(f'AT+HTTPACTION={mode}', expecing_plus=True)
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_, status_code, data_len = resp.strip('+HTTPACTION: ').split(',')
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if status_code != '200':
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logger(f'HTTP {m} failed: {status_code}', source='CELL', level=LogLevel.error)
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return
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data = await cellular.send_command(f'AT+HTTPREAD={data_len}', read_until=b'+HTTPREAD:0\r\n', clean_lines=False)
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elif TRACCAR_HOST.startswith('https://'):
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# HTTPS does not work.
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# ModemErrorResponse: Modem returned an error: ('AT+CCHOPEN=0,"postman-echo.com",443,2', [b'ERROR\r\n'])
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parts = url.replace('https://', '', 1).split('/')
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host = parts.pop(0)
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path = '/' + '/'.join(parts)
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await cellular.send_command(f'AT+CCHOPEN=0,"{host}",443,2')
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content = f"""GET {path} HTTP/1.1
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Host: {host}
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User-Agent: Freematics
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Proxy-Connection: keep-alive
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Content-Length: 0"""
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await cellular.send_command(f'AT+CCHSEND=0,{len(content.encode())}')
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resp = await cellular.send_command('AT+CCHRECV=0', read_until=b'+CCHRECV: 0,0\r\n')
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print(resp)
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else:
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raise Exception
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data = await cellular.send_command(f'AT+HTTPREAD={data_len}', read_until=b'+HTTPREAD:0\r\n', clean_lines=False)
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if data[0] != b'OK\r\n':
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raise Exception
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data = list(data)
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del data[0]
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del data[0]
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del data[-1]
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print(data)
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data_clean = ''.join([x.decode() for x in data]).strip('\r\n')
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return data_clean
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asyncio.run(start_modem_task())
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