In the previous chapter, we stored the current state in a variable and switched the LED operation mode every time the button was pressed.The signals sent to the LED so far have been of two types: HIGH ...

Last time, we used the Serial Monitor to check the numbers and characters sent from the Arduino. In our digital inputs so far, we have handled two states: HIGH and LOW. This time, we will read voltage ...

Arduino library for the PZEM-004T V4.0 (100A) Energy Monitor, compatible with Arduino UNO R3, R4, Nano, Mega, and other Arduino boards. This library enables easy reading of voltage, current, power, ...

When it comes to performance, there's a world of difference between the Raspberry Pi and Arduino. The former, after all, is technically a fully functional computer that can run games, word processors, ...

Proper waste sorting is very important for keeping our neighbourhoods clean and saving resources for the future. When we mix food scraps, plastic, paper, and batteries in the same bin, recycling ...

The Zephyr SPI functions are slightly harder to use then than their Arduino counterparts, but they are also more sophisticated. The SPI driver is easy to acquire at compile time: static const struct ...

Arduino has begun shipping the 4GB variant of its UNO Q development board, which packs a fully standalone-capable Linux-compatible system into the classic UNO microcontroller board footprint — ...

When the Arduino UNO Q was first unveiled in October 2025, the specifications of the Qualcomm DragonWing SBC listed the ABX00162 SKU with 2GB RAM and 16GB eMMC flash, and the ABX00173 SKU with 4GB RAM ...

What if you could combine the simplicity of Arduino with the power of a Linux-based processor, all in one compact device? Enter the Arduino Uno Q, a new development board designed to handle everything ...

Is the Arduino Uno Q the missing piece in your next project? With its hybrid design that fuses the precision of a microcontroller with the flexibility of a Linux-based single-board computer, this ...

I’m Adam Conway, an Irish technology fanatic with a BSc in Computer Science and I'm XDA’s Lead Technical Editor. My Bachelor’s thesis was conducted on the viability of benchmarking the non-functional ...

For some, Halloween is starting to rival Christmas for setting up elaborate holiday decorations. Homeowners now spend many hours─and sometimes dollars─creating ghoulish displays of lit pumpkins, ...