4G GPS Tracker Reverse Engineering - Cell Modem Interactions
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Published 2024-06-18
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All Comments (21)
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Found your channel recently. I don't know much about hardware hacking but love what I've seen so far! Very informative and entertaining.
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AT commands were invented by Hayes in the 80's. They became the industry standard for sending commands to modems.
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Many of these cell modems have an "application processor" where you can run simple applications without the need for an external microcontroller. I doubt they would populate the GPS that's not connected to anything. It probably feeds the NMEA into a UART on the modem and they have installed a simple application to handle it.
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Absolutely love the content. Commenting and upvoting for the algorithm
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You have a gift for IOT content! Always entertaining!
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Some of Simcom modems have the ability to be programmed. This module can be one of them that you can write your own code on it. Because the board has gps antenna and gps module which is too much extra cust for manufacturer, I believe it is programmed to get GPS data from L76 gps module and send it over network to tracking Server. You can test it using different SIM CARD
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introduce me to so many new topics with each video really love the content
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Absolutely appreciate the consistent content!
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Very good job on figuring out how it works, interesting that there are simcard providers with these plans. For very very low latency IotT projects it's great.
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AT commands (called AYE TEE commands, not "at" commands) are a historical legacy from the Hayes modem days and have spread to all manner of modem and even non-modem devices over the years
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We don't deserve you, keep up the good work! Awesome content
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absolutely love the content, the only criticism is possibly writing a script. regardless, great job
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Super interesting video! Thanks for explaining it in such a practical manner
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Oh look I see you in West Tennessee. Love your content.
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Matt have shown in 1st and 2nd video his abilities to not just understand the hardware but also the software intop of it, and also some OSINT skill. Totally a hacker
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Fantastic as usual!!!
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Thing is - you can use GPS external device with such modem, since some of them allow pluggin-in additional 'apps', including interfacing external modules
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It's absolutely wild that they would build a GPS tracker and even fit the antenna and receiver when there is no way for it to use it!
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love the content thanks from Egypt
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Been loving the videos. Always throw out the newbie #s pls. Say the default baud rate we should try. :) Also, AT commands is pronounced A-T, not at.
