In part two (see part 1 for the train detection circuit) we are addressing the three 7 segment displays. We are using Common Anode displays, so we send a low to each segment to light them up. Use whatever you
The guys at the Model Railroad Club wanted a scale speedometer displaying the scale speed of the train as it passes a point on the layout. I’m using two IR transceivers connected to an arduino to detect the time it
Another cool exhibit on your model railroad is flickering firelight. Whether it’s a hobo campfire, or a burning building, this adds to the layout’s realism. An Arduino, 3 130 ohm resistors, two yellow LEDs, one red LED, and you have
The guys at the Charleston Model Railroad Club asked for a simulated flash of an arc welder. A $4 (was $2.50, price went up since we purchased) arduino nano clone, a 130 ohm resistor, and a white LED later, they
Our new book is online, a chapter at a time. We have a dozen chapters in various stages of proofing and testing, and have the first 3 uploaded and available at http://arduinotronics.blogspot.com/p/citizen-science-book.html, so check them out, and leave us feedback on
It was announced today that Arduino LLC (aka Arduino.cc) and Arduino srl (aka Arduino.org) will rejoin to become one Company. Massimo Banzi and Federico Musto took the stage at the New York Maker Faire to announce the good news, and