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fabricademy2017:students:nuria.robles:week_12 [2018/02/15 13:20]
nuriafablab_gmail.com 		fabricademy2017:students:nuria.robles:week_12 [2018/02/15 13:32]
nuriafablab_gmail.com
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 **{{  :​fabricademy2017:​students:​nuria.robles:​week12_skin_electronics:​01_assignment_5.png?​nolink&​600x495 ​ }}** **{{  :​fabricademy2017:​students:​nuria.robles:​week12_skin_electronics:​01_assignment_5.png?​nolink&​600x495 ​ }}**
 +
 +====== Arduino IDE Setup ======
 +
 +**I**  installed the Gemma Board following these steps in the [[https://​learn.adafruit.com/​adafruit-arduino-ide-setup/​overview|Adafruit Arduino IDE setup guide]] to easily install a pre-configured Arduino IDE to program Gemma!
 +
 +**Blink!**
 +
 +After the instalation,​ is very useful to upload the **blink** ​ code to the board and see that your PC is talking to your board. I followed ​ this [[https://​learn.adafruit.com/​introducing-gemma/​setting-up-with-arduino-ide#​|tutorial]] from Adafruit
 +
 +And whe it all was done, I uploaded the code for the 3 neopixels
 +
 +#include <​Adafruit_NeoPixel.h>​ \\ #define NUM_LEDS 5 // Number of NeoPixels
 +
 +#define PIN 1 // DIGITAL pin # where NeoPixels are connected // IMPORTANT: Avoid connecting on a live circuit...
 +
 +// if you must, connect GND first.
 +
 +Adafruit_NeoPixel strip = Adafruit_NeoPixel(NUM_LEDS,​ PIN);
 +
 +void setup() { \\ strip.begin();​ \\ strip.setBrightness(100);​ // 100/255 brightness (about 40%) strip.show();​ // Initialize all pixels to '​off'​
 +
 +}
 +
 +void loop() { \\ for(int j=0; j<256; j++) {
 +
 +for(int i=0; i<​NUM_LEDS;​ i++) { strip.setPixelColor(i,​ Wheel((i * 8 + j) & 255));
 +
 +  }
 +
 +  strip.show();​
 +
 +  delay(20);
 +
 +} }
 +
 +// Input a value 0 to 255 to get a color value. \\ // The colours are a transition r - g - b - back to r. uint32_t Wheel(byte WheelPos) {
 +
 +if(WheelPos < 85) { \\ return strip.Color(WheelPos * 3, 255 - WheelPos * 3, 0);
 +
 +} else if(WheelPos < 170) { \\ WheelPos -= 85; \\ return strip.Color(255 - WheelPos * 3, 0, WheelPos * 3);
 +
 +} else { \\ WheelPos -= 170; \\ return strip.Color(0,​ WheelPos * 3, 255 - WheelPos * 3);
 +
 +} }
  
 \\ \\