Low-Power IoT in the Military Domain: Architecture, Standards, Coatings, and Field Results
Two active military operations are running simultaneously right now, and both are producing a very visible lesson for embedded engineers: the ability …
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Built a simple DDNS service because existing ones felt too complicated. https://rjuip.com
Hey everyone, I’ve been working a lot with ESP8266 projects and a small home server setup, and kept running into the same annoying issue — my public I…
How an ai gateway Unifies Your RFID Encoding and Data Processing Workflows
As RFID deployments grow more sophisticated, so does the software stack that powers them. You might have one AI model for serial number generation, an…
I Spent 3 Months Tuning a Tokio Runtime for My Robot - Here's What No Tutorial Tells You
Last November, my robot arm started dropping sensor frames at exactly 47ms intervals. Not randomly - exactly 47ms, like clockwork. It would read joint…
Network Configuration
This section introduces how to configure and connect to the network in the QuecPython solution. QuecPython supports multiple types of NICs, each with …
How to Build a DIY USB Keylogger with ESP32-S3 (DuckLogger Tutorial)
Have you ever wondered how easy it is to build your own DIY USB keylogger from scratch? Using widely available and affordable hardware (under $10), yo…
What happens when a 10-year-old builds their first IoT sensor — a teacher's perspective from Buenos Aires
I've been teaching robotics and programming at Robot Academy Argentina since 2017. We work with kids aged 5 to 12 in Palermo, Buenos Aires, and we've …
Reading Modbus RTU Data with Python
Most tutorials on reading Modbus RTU data with Python focus entirely on the software side. The standard advice is to run pip install pymodbus, plug a …
Writing a Rust Driver for the Sensirion SEN5x Air Quality Sensor
If you have ever tried to integrate an environmental sensor into a Rust embedded project, you know the drill: vendor SDKs are C-only, community crates…
I Built a GPS Tracker Without a SIM Card - Here's How
Most GPS tracker tutorials hit you with the same wall: "You'll also need a SIM card, a GSM module, and..." - and suddenly a weekend project turns into…