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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
@@ Line 56: / Line 56: @@
 **{{  :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);
+} }
 \\