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--- digispark:tutorials:digiled [2014/12/28 21:38]
kermed [Assembly:]
+++ digispark:tutorials:digiled [2016/06/09 12:03]
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-======DigiLED Shield Kit Tutorial======
-=====Product Description:=====
-[[https://s3.amazonaws.com/digispark/images/m/digiled1.jpg|{{https://s3.amazonaws.com/digispark/images/t/digiled1.jpg}}]][[https://s3.amazonaws.com/digispark/images/m/digiled5.jpg|{{https://s3.amazonaws.com/digispark/images/t/digiled5.jpg}}]]
-This is an unassembled kit and requires basic soldering. This is designed for use with the Digispark development board, which is not included.
-=====Parts:=====
-^ Part       ^ Quantity          ^Identification^
-| DigiLED Shield PCB|1| |
-| 0.1uf Capacitor|1| |
-| WS2812B type through hole LED|1||
-| 1x40 pin male 0.1" pitch header| 9 pins worth| |
-**Resistor Values:** For more information on how to identify the value of the resistors, we recommend these sites:
-A nice simple resistor calculator: http://www.ealnet.com/m-eal/resistor/resistor.htm
-A comprehensive article on identification: http://www.diyaudioandvideo.com/Electronics/Color/
-**Soldering:** If you are new to soldering we recommend the following tutorials:
-Soldering Basics (http://www.sparkfun.com/tutorials/106) and Soldering Crash Course from the folks at Sparkfun (http://www.sparkfun.com/tutorials/354).
-How to solder from the Curious Inventor: http://store.curiousinventor.com/guides/How_to_Solder
-Adafruit has this excellent guide that starts with the tools needed and then shows detailed pictures, including some of the common problems that beginners experience (http://learn.adafruit.com/adafruit-guide-excellent-soldering)
-**We assume for these assembly instructions that you know the basics of thru-hole soldering. If you don't check out the links above, these boards are very easy to solder - we promise!**
-=====Assembly:=====
-Empty kit bag (or if using a raw PCB, aquire parts) and verify contents.
-[[https://s3.amazonaws.com/digispark/images/m/digiled1.jpg|{{https://s3.amazonaws.com/digispark/images/t/digiled1.jpg}}]]
-When inserting the LED into the board ensure the two longer leads of the LED goes through the holes marked data out and ground (see photo) - this ensures you have the LED oriented properly. Solder the LED leads and clip off the excess.
-[[https://s3.amazonaws.com/digispark/images/m/digiled2.jpg|{{https://s3.amazonaws.com/digispark/images/t/digiled2.jpg}}]]
-[[https://s3.amazonaws.com/digispark/images/m/digiled3.jpg|{{https://s3.amazonaws.com/digispark/images/t/digiled3.jpg}}]]
-Insert the capacitor on the top of the board (as shown), solder leads on bottom. Orientation of the capacitor does not matter.
-[[https://s3.amazonaws.com/digispark/images/m/digiled4.jpg|{{https://s3.amazonaws.com/digispark/images/t/digiled4.jpg}}]]
-Cut a length of male headers 6 pins long and one 3 pins long. Insert into corresponding positions (on the bottom of the board) and solder each pin.
-**Tip:** Inseting the headers into a breadboard and then placing the board on top can make this process easier.
-**Note:** If you are using stackable headers, use them here instead of the standard male headers.
-When inserting the LED into the board ensure the two longer leads of the LED goes through the holes marked data out and ground (see photo) - this ensures you have the LED oriented properly. Solder the LED leads and clip off the excess.
-[[https://s3.amazonaws.com/digispark/images/m/digiled5.jpg|{{https://s3.amazonaws.com/digispark/images/t/digiled5.jpg}}]]
-Your DigiLED shield is complete!
-**Note:** On the back of the shield there is a solder patch to activate pin 5 instead of pin 1 as the digital input.  If you are not using the DigiLED as a shield onto the DigiSpark Pro and planning on running it at a distance, you only need to connect the specified digital pin (Pin 1) and bottom 3 pins (5V, GND, VIN).  You do not need to connect all 6 pins on the right-hand side of the shield.
-=====Chaining:=====
-When chaining multiple DigiLED's together, you only need to connect 3 points as a daisy chain using VCC, DO>DI and GND.  For example, LED #1 would need the top 3 pins VCC, DO (out) and GND to connect to DigiLED #2's VCC, DI (in) and GND near the bottom of the board.  If you added LED #3 you would need to connect DigiLED #2's top three pins to the lower-mid pins on DigiLED #3 and so-on and so forth.  After DigiLED 1, the side pins and 5V, GND, VIN should not be connected.
-=====Programming:=====
-**Note:** The programming sections assumes you've installed the Arduino IDE and the Digispark Add-ons
-Download and install the NeoPixel library: https://github.com/adafruit/Adafruit_NeoPixel
-Set the Pin to 1, Number of LEDs to 1 (unless you have chained more on), and format to NEO_RGB + NEO_KHZ800
-If you have a single DigiLED, the following code sample will make it continuously cycle through white, cyan, violet, yellow, red, green and blue.
-<code arduino>
-// Based on NeoPixel Ring simple sketch (c) 2013 Shae Erisson
-// released under the GPLv3 license
-#include <Adafruit_NeoPixel.h>
-// Which pin on the Digispark is connected to the DigiLED?
-#define PIN            1
-// How many DigiLEDs are attached to the Digispark?
-#define NUMPIXELS      1
-// When we setup the NeoPixel library, we tell it how many pixels, and which pin to use to send signals.
-// For the WS2812B type through hole LED used by the DigiLED,  NEO_RGB + NEO_KHZ800 is the correct data format
-Adafruit_NeoPixel pixels = Adafruit_NeoPixel(NUMPIXELS, PIN, NEO_RGB + NEO_KHZ800);
-int delayval = 500; // delay for half a second
-void setup()
-{
-  pixels.begin(); // This initializes the NeoPixel library.
-  pixels.show(); // Initialize all pixels to 'off'
-}
-void loop()
-{
-  // pixels.Color takes RGB values, from 0,0,0 up to 255,255,255
-  // in Red,Green,Blue order
-  pixels.setPixelColor(0, pixels.Color(255, 255, 255)); //white
-  pixels.show(); // This sends the updated pixel color to the hardware.
-  delay(delayval); // Delay for a period of time (in milliseconds).
-  pixels.setPixelColor(0, pixels.Color(0, 255, 255)); //cyan
-  pixels.show();
-  delay(delayval);
-  pixels.setPixelColor(0, pixels.Color(255, 0, 255)); //violet
-  pixels.show();
-  delay(delayval);
-  pixels.setPixelColor(0, pixels.Color(255, 255, 0)); //yellow
-  pixels.show();
-  delay(delayval);
-  pixels.setPixelColor(0, pixels.Color(255, 0, 0)); //red
-  pixels.show();
-  delay(delayval);
-  pixels.setPixelColor(0, pixels.Color(0, 255, 0)); //green
-  pixels.show();
-  delay(delayval);
-  pixels.setPixelColor(0, pixels.Color(0, 0, 255)); //blue
-  pixels.show();
-  delay(delayval);
-}
-</code>
-If you have more than one DigiLED daisy-chained, the following code will make all the DigiLEDs light up green. You need to change the NUMPIXELS variable to the number of DigiLEDs you have chained together.
-<code arduino>
-// Based on NeoPixel Ring simple sketch (c) 2013 Shae Erisson
-// released under the GPLv3 license to match the rest of the AdaFruit NeoPixel library
-#include <Adafruit_NeoPixel.h>
-// Which pin on the Arduino is connected to the NeoPixels?
-#define PIN            1
-// How many NeoPixels are attached to the Arduino?
-#define NUMPIXELS      1
-// When we setup the NeoPixel library, we tell it how many pixels, and which pin to use to send signals.
-// Note that for older NeoPixel strips you might need to change the third parameter--see the strandtest
-// example for more information on possible values.
-Adafruit_NeoPixel pixels = Adafruit_NeoPixel(NUMPIXELS, PIN, NEO_RGB + NEO_KHZ800);
-int delayval = 500; // delay for half a second
-void setup() {
-  pixels.begin(); // This initializes the NeoPixel library.
-}
-void loop() {
-  // For a set of NeoPixels the first NeoPixel is 0, second is 1, all the way up to the count of pixels minus one.
-  for(int i=0;i<NUMPIXELS;i++){
-    // pixels.Color takes RGB values, from 0,0,0 up to 255,255,255
-    pixels.setPixelColor(i, pixels.Color(0,150,0)); // Moderately bright green color.
-    pixels.show(); // This sends the updated pixel color to the hardware.
-    delay(delayval); // Delay for a period of time (in milliseconds).
-  }
-}
-</code>

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