One of the nicest amenities of interpreted programming languages is that you can test out the code that you’re developing in a shell, one line at a time, and see the results instantly. No mat… ...

The microcontroller uses Charlieplexing, a method of using I/O lines to drive as many as N×(N–1) LEDs, to drive 20 LEDs with only five I/O pins (references 2 through 4). Figure 1 Based on a low-cost ...

Microcontrollers existed before the Arduino, and a device that anyone could program and blink an LED existed before the first Maker Faire.This might come as a surprise to some, but for others PICs ...

Planning your weather display build . Luke Marzen, a graduate computer science student, developed this open-source project.

The microcontroller uses either internal or external serial EEPROM (I2C/SPI based) for storing data like distance readings. The microcontroller also uses a real-time clock (RTC) to display accurate ...

This article is part of the Ideas for Design Series: Vol. 3, No. 10. If the need arises to display measurements in both graphical and digital formats, an LED matrix display offers one of the best ...