In case you missed it, the big news is that a minimal Arduino core is up and working on the ESP32. There’s still lots left to do, but the core functionality — GPIO, UART, SPI, I2C, and … ...

Some of the first steps toward working with Arduino is understanding how to write code for it. The good news is that it's made with beginners in mind.

Here’s an Arduino library that will let you drive a very large number of LEDs. [Elco Jacobs], an electrical engineering student, is the author of the library. He has a work-study job that has… ...

SDA – Arduino pin A4 SCL – Arduino pin A5 Next, wire up the LCD according to the schematic below: The R3 value normally to be 220 ohm/330 ohm as a current limiting resistor. Part 3: Software The ...

Arduino Micro has some extra leds that it is tricky to programme. Like almost all Arduinos, has a built-in led – the green one on the left in the photo. And it has a pair of yellow leds – called TX ...

Running out of GPIO pins? Learn how to connect multiple buttons to just one Arduino pin using clever wiring and resistor techniques. Perfect for compact projects, keyboards, or when using small ...

A Raspberry Pi Zero Shield that will connect a Zero or Zero W module to a 3.3V or 5V compatible Arduino board, is available from US-based Burgessworld Custom Electronics. The two boards are connected ...

How to use an Arduino for controlling the backlight unit of a 16×2 Character LCD? In order to control the the backlight LED brightness, combination of a medium-power transistor (BC327) and Arduino’s ...

How to Light Your Jack-o'-Lantern the Arduino Way Learn about Pulse Width Modulation and give your Jack-O-Lanterns a warm pulsing glow.