In the previous chapter, we turned the knob of a variable resistor and observed how the analog input value changed. This time, we will use a **light sensor (CdS cell)**, which changes its resistance ...

const char* password = "YOUR_WIFI_PASS"; // Replace with your Wi-Fi Password if (request.indexOf("/LED=ON") != -1) { Serial.println("CMD:ON ...

Add Bob Vila (opens in a new tab) More information Adding us as a Preferred Source in Google by using this link indicates that you would like to see more of our content in Google News results. Outdoor ...

When using a micro:bit, you might find the 5×5 LED display a bit lacking and want something that looks "more impressive" (or is it just me?). So, I connected a module that can display characters using ...

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, ...

ArduinoMatrixScroller is a lightweight Arduino library developed to display smooth, readable scrolling text on the built-in 12×8 LED matrix of the Arduino UNO R4 WiFi and UNO R4 Minima. The Arduino ...

P10 Pin → Arduino Pin nOE → D9 (Output Enable, active low) A → D6 (Row select A) B → D7 (Row select B) CLK → D13 (SPI Clock) SCLK → D8 (Shift clock) R_DATA → D11 (SPI MOSI) ...

Have you ever wondered how to debug your Arduino code or see what your board is actually doing behind the scenes? That’s exactly what the serial monitor is for. It’s a simple but powerful tool that ...

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 ...

Pimoroni Interstate 75 W (RP2350) is an all-in-one RGB LED matrix driver board designed for HUB75 LED matrix panels commonly used in video walls, advertising displays, and creative signage. Built ...

Arduino is a single-board microcontroller. It is intended to make the application of interactive objects or environments more accessible. The hardware consists of an open-source hardware board ...

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 ...