Arduino and LEGO Projects
Format: PDF / Kindle (mobi) / ePub
We all know how awesome LEGO is, and more and more people are discovering how many amazing things you can do with Arduino. In Arduino and LEGO Projects, Jon Lazar shows you how to combine two of the coolest things on the planet to make fun gadgets like a Magic Lantern RF reader, a sensor-enabled LEGO music box, and even an Arduino-controlled LEGO train set.
- Learn that SNOT is actually cool (it means Studs Not on Top)
- See detailed explanations and images of how everything fits together
- Learn how Arduino fits into each project, including code and explanations
Whether you want to impress your friends, annoy the cat, or just kick back and bask in the awesomeness of your creations, Arduino and LEGO Projects shows you just what you need and how to put it all together.
the machine online. An IP address that starts with 198 means it is connected to a local network. The EthernetClient variable is how the code communicates with the Internet to the server defined in the serverName variable, in this case twitter’s API server. The rest of the variables are used for holding data and defining the pins that are connected to the LEDs. In the setup() function, you define the LED pins as output pins and set space for the currentLine and tweet variables. currentLine will
connects to the 5V pin, pin 2 on the RFID reader connects to pin 13 on the Arduino, and pin 9 on the RFID reader connects to pin 0. There is also an LED connected to pin 3 for testing purposes. While the RFID reader communicates with the Arduino using pin 0, so does the computer when uploading a program. Since they both utilize the same pin, when uploading the sketch to the Arduino, the wire must be removed or the computer will give an error. The RFID reader and the Arduino are connected on a
Most commonly, when someone tries out a new computer language, they make the words “Hello World” appear on the screen. The Arduino version of this is to make a light-emitting diode (LED) blink. By plugging the LED into two of the ports on the Arduino and writing a simple program, the Arduino can turn the light on and off. The first step is to put the LED into the Arduino. LEDs are specific to the way they are used. The LED needs to be plugged in so that the longer end goes into a numbered pin
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to start from scratch to address the hardware yourself. To install the library, go to www.ladyada.net/make/mshield/use.html and follow the instructions to download and install the motor shield library. Once it is installed and the Arduino software is restarted, copy the code in Listing 1-2. Listing 1-2. The Ultimate Machine Code #include