Evolution of a Blog

This blog has evolved as I have as a maker. It starts at the beginning of my journey where I began to re-tread my tires in the useful lore of micro electronics and the open-source software that can drive them. While building solutions around micro-electronics are still an occasional topic my more recent focus has been on the 3D Printing side of making.

Saturday, August 11, 2012

Nervous System - Arduino

The Arduino is an open-source electronics prototyping platform with a pretty large ecosystem of add ons.   The Arduino Environment runs on your PC and allows for the writing of code in a "C" like language that can then be downloaded to the Arduino to drive a multitude of connected devices.   The environment is written in Java which obviously makes it very portable between environments if a little pokey at times.

There are a wide variety of boards but I went with the Mega as I was not sure how many interfaces that I would ultimately need.   Besides, boys with their toys always favor a name like "Mega".
Having received the board I promptly connected it to my PC, downloaded the development environment, and made the on-board LED blink.  If nothing else I had the environment setup on my Ubuntu laptop and knew that the Arduino was alive.

  Turns on an LED on for one second, then off for one second, repeatedly.
  This example code is in the public domain.

// Pin 13 has an LED connected on most Arduino boards.

// give it a name:
int led = 13;

// the setup routine runs once when you press reset:
void setup() {               
  // initialize the digital pin as an output.
  pinMode(led, OUTPUT);    

// the loop routine runs over and over again forever:
void loop() {
  digitalWrite(led, HIGH);   // turn the LED on (HIGH is the voltage level)
  delay(1000);               // wait for a second
  digitalWrite(led, LOW);    // turn the LED off by making the voltage LOW
  delay(1000);               // wait for a second

I actually didn't even write anything as the above is one of the many samples that comes with the Arduino environment!

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