While there is a time and place for wirelessly controlled devices, sometimes you want something you can just reach out and ...

1️⃣ Understanding Distance Measurement Using ultrasonic sensors like the HC-SR04, Arduino can calculate distance by measuring sound wave travel time — ideal for robotics and smart parking systems. 2️⃣ ...

This library very simply generates a set of channel symbols for JT65, JT9, JT4, FT8, or WSPR based on the user providing a properly formatted Type 6 message for JT65, JT9, or JT4 (which is 13 valid ...

This is a two-part series where DI authors Damian and Phoenix Bonicatto explore the IQ signal representation and negative frequencies. Part 1 explains the commonly used SDR IQ signal representation ...

Touch screen head units are pretty much the norm these days. Many compromise with annoying on-screen volume controls or tiny buttons. If you find yourself with such a unit, you might like to hack in a ...

Samuel is a UK-based technology writer with a passion for all things DIY. Having started businesses in the fields of web development and 3D printing, along with working as a writer for many years, ...

Every engineer and hobbyist nowadays has a workbench for all of their tools and gadgets, and if you're a 3D printing enthusiast, you've probably used the vernier calliper a lot. This emphasizes the ...

This library offers an easy way to encode and decode CCIR476 symbols on your Arduino for SITOR, AMTOR and Navtex message encoding and decoding. The best way to install the library is via the Arduino ...

Soon after writing about RoenDi rotary encoder with a built-in color display, readers pointed me to SmartKnob View, a similar-looking project but featuring an ESP32 module for WiFi and Bluetooth ...