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I'm working on a project where I use a StarTech USB56KEMH2 modem with Python (PySerial) on Linux to call my building's buzzer (MICROM system) and open the door by sending a DTMF 9 tone. The modem is ...
Colunga_333's user avatar
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1 vote
0 answers
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I have: PC-server (Windows 10) with Java program OWEN PR200 (ПР200, programmable relay) GSM modem iRZ MC55iT PC-client with installed Owen OPC Server and Scada I need to make a two-side ...
Viacheslav's user avatar
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I am designing the USSD handling algorithms, and unable to decide how to proceed with converter - I need to convert received message into the UTF-8, therefore must more or less reliably decode the ...
Anonymous's user avatar
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a query, I have a modem a7670sa, I use the modem in Text format, I can receive the text message clearly, but in certain cases I get a lot of nonsense characters, giving more details, I have the chip ...
user20602609's user avatar
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I'm trying to get a simcom7080 cellular modem to work with ModemManager(mm) and NetworkManager(nm) on Fedora IoT 41. I followed this guide for setting up the modem and network connection. The modem is ...
mchlstckl's user avatar
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1 answer
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I'm trying to develop a program that can interact with the a particular SIM network to send & read SMSs and dial USSD codes. I built a protoype using an old modem (iBall Airways 3G Modem - ...
Eben Paul's user avatar
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1 answer
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I'm encountering an issue with obtaining the GPS location in my application. When I fail to get the GPS location, my error handling mechanism attempts to use LBS commands via Queclocator as a fallback....
Andrew A's user avatar
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1 answer
117 views

For reasons I won't get into here but are valid, I'm creating an "XModem CRC 1K" implementation of a receiver for transfers coming from Windows XP HyperTerminal. Many files seem to transfer ...
Wisteso's user avatar
  • 384
2 votes
0 answers
211 views

I am encountering an issue with my SIM7600E module. Whenever I try to execute the command "AT+CCFC=4,2" or 'AT+CCFC=0,3,"{number}",129,1', I receive the error message "+CME ...
Milan Bültmann's user avatar
  • 53
2 votes
1 answer
135 views

Problem: The SIM7080G modem is only able to receive a CoAP packet of maximum 579 bytes from a CoAP server (579 bytes total packet size, 566 bytes payload), even though the server sends a larger ...
Heigre's user avatar
  • 31
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0 answers
127 views

Initially we developed an IoT ready medical device that was supposed to handle IoT via a TCP connection to an online server. However, the customer now asked us whether its possible to use the Azure ...
user1093995's user avatar
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1 vote
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122 views

At my workplace, I need an application that allows me to see the caller's number when I call a landline and retrieve the information from the database. We currently use an application that does this, ...
Kadir Sağlam's user avatar
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1 answer
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My SIMCOM is a 7080G with las Firmware updated to: APRev:1951B16SIM7080,B16V01 QCN:SIM7080G_P1.03_20201226 IMEI:860016041830931 I follow exactly the HTTP procedure described in: ...
Horacio's user avatar
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1 vote
1 answer
941 views

AT commands usually generate an OK/ERROR response > AT\r < \r\nOK\r\n or a 2-lines response, such as: > AT+CIMI\r < \r\n<IMSI>\r\n < \r\nOK\r\n In both cases, the response ...
pozzugno's user avatar
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287 views

I'm using the Quectel MC25 Module with an STM32 for a tracking device. The module works well for a few hours, then stops responding to AT commands and gets stuck. How can I fix this issue? The module ...
Nofil's user avatar
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