Programming the Arduino Pro Mini with USB Mini

Everyone, who has been making a project based on Arduino probably wanted the board to be smaller than the basic unit. A variety of smaller, but compatible with Arduino, boards have been developed. One of them is SparkFun’s Arduino Pro Mini. Currently, it has ATmega328 onboard and its dimensions are 33 mm x 18 mm. […]

Remember the colours – a game

The following article is based on this entry on Newton’s blog (in Polish). All the pictures, program code and the video clip came from there. This project’s goal was to use as many parts from the Arduino Starter Kit, as possible. So, what is this project exactly? As the title itself suggests, it’s a game, […]

How to connect switches

Switches (buttons, pushbuttons, tact switches) are commonly used with Arduino. But, for beginners, it’s sometimes irritating when it comes to wire them up correctly. Some of their terminals are shorted with each other. Such a switch doesn’t work if putted in reversely. Because of that, here’s some words of explanation. For instance, we have a […]

I want more digital outputs!

Arduino offers quite a few digital outputs, but sometimes you want even more… When a keypad and LCD are connected, it doesn’t remain much free outputs. Today I found out a simple solution for that – EZ Expander shield. The shield utilises two shift registers, 74HC595 to ‘multiply’ digital outputs. Of course, the additional outputs […]

Hall effect sensor

Hall effect sensor is a sensor utilizing the Hall effect to measure magnetic field. Briefly speaking, it’s about diference in voltage charges within a conductor placed in magnetic field. CS3144E available in Nettigo store is a Hall effect sensor in TO-92UA package. It consists of voltage regulator, Hall voltage generator, differential amplifier and Schmitt trigger. […]

Processing – interface on steroids

Everyone who become interested, will, rather sooner than later, stumble on the name Processing. Processing is the software on which Arduino IDE is based. But, it isn’t the only common thing. At first – what is the Processing? It’s a programming language (under an open source license) with IDE environment created for the people involved […]

SelFly – from the space by glider

SelFly is an interesting (IMO) project of an autonomic (with autopilot) glider which will, elevated to a high altitude (about 30 km) with a weather balloon return home on its own. Good base for further experiments. All the more I was glad it’s Polish, domestic production :) . I hope the entire project will succeed. […]