雲林SONG: 10月 2018

Tinkercad Circuits：NeoPixel Ring 水流模擬

若您覺得文章寫得不錯，請點選文章上的廣告，來支持小編，謝謝。

本文使用TinkerCad Circuits來示範NeoPixel Ring的應用：「水流模擬」

材料(Materials)：

Arduino UNO R3 x 1
NeoPixel Ring x 1
Small Breadboard x 1
1K ohm Resistor x 2
Pushbutton x 2

電路(Circuit)：

兩顆按鈕分別接在UNO的D3與D4，NeoPixel的In接在UNO的D2。

程式碼(The Code)：

	#include <Adafruit_NeoPixel.h>

	#define F_BTN_PIN 3 // forward button
	#define B_BTN_PIN 4 // backward button

	#define PIN 2 // input pin Neopixel is attached to

	#define NUMPIXELS 24 // number of neopixels in Ring
	#define HALF_NUMPIXELS 12

	Adafruit_NeoPixel pixels = Adafruit_NeoPixel(NUMPIXELS, PIN, NEO_GRB + NEO_KHZ800);

	int delayval = 50; // timing delay

	int redColor = 255;
	int dimRedColor = 64;

	int fBtnState = 0;
	int bBtnState = 0;

	void setup() {
	pixels.begin(); // Initializes the NeoPixel library.
	Serial.begin(9600);
	pinMode(F_BTN_PIN, INPUT);
	pinMode(B_BTN_PIN, INPUT);
	}

	void loop() {

	// read the state of the pushbutton value:
	fBtnState = digitalRead(F_BTN_PIN);
	bBtnState = digitalRead(B_BTN_PIN);

	// check if the pushbutton is pressed. If it is, the buttonState is HIGH:
	if (fBtnState == HIGH) {
	//
	// Light up each LED in clockwise direction
	//
	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(redColor, 0, 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).
	}

	for(int t = 0; t < 20; t++) {
	for(int i=HALF_NUMPIXELS;i<NUMPIXELS;i+=2){
	pixels.setPixelColor(i, pixels.Color(dimRedColor, 0, 0)); // Moderately bright green color.
	}
	for(int i=HALF_NUMPIXELS+1;i<NUMPIXELS;i+=2){
	pixels.setPixelColor(i, pixels.Color(redColor, 0, 0)); // Moderately bright green color.
	}

	pixels.show();
	delay(delayval);

	for(int i=HALF_NUMPIXELS+1;i<NUMPIXELS;i+=2){
	pixels.setPixelColor(i, pixels.Color(dimRedColor, 0, 0)); // Moderately bright green color.
	}
	for(int i=HALF_NUMPIXELS;i<NUMPIXELS;i+=2){
	pixels.setPixelColor(i, pixels.Color(redColor, 0, 0)); // Moderately bright green color.
	}

	pixels.show();
	delay(delayval);
	}

	for(int i=0;i<NUMPIXELS;i++){
	// turn off led
	pixels.setPixelColor(i, pixels.Color(0, 0, 0)); // Moderately bright green color.

	pixels.show();

	delay(delayval); // Delay for a period of time (in milliseconds).
	}
	} else if (bBtnState == HIGH) {
	//
	// Light up each LED in counter-clockwise direction
	//
	for(int i=NUMPIXELS-1;i>=0;i--){
	// pixels.Color takes RGB values, from 0,0,0 up to 255,255,255
	pixels.setPixelColor(i, pixels.Color(redColor, 0, 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).
	}

	for(int t = 0; t < 20; t++) {
	for(int i=0; i <= HALF_NUMPIXELS;i+=2){
	pixels.setPixelColor(i, pixels.Color(dimRedColor, 0, 0)); // Moderately bright green color.
	}
	for(int i=1; i <= HALF_NUMPIXELS;i+=2){
	pixels.setPixelColor(i, pixels.Color(redColor, 0, 0)); // Moderately bright green color.
	}

	pixels.show();
	delay(delayval);

	for(int i=1; i <= HALF_NUMPIXELS;i+=2){
	pixels.setPixelColor(i, pixels.Color(dimRedColor, 0, 0)); // Moderately bright green color.
	}
	for(int i=0; i <= HALF_NUMPIXELS;i+=2){
	pixels.setPixelColor(i, pixels.Color(redColor, 0, 0)); // Moderately bright green color.
	}

	pixels.show();
	delay(delayval);
	}

	for(int i=NUMPIXELS-1;i>=0;i--){
	// turn off led
	pixels.setPixelColor(i, pixels.Color(0, 0, 0)); // Moderately bright green color.

	pixels.show();

	delay(delayval); // Delay for a period of time (in milliseconds).
	}
	}
	}

view raw NeoPixelRing.ino hosted with ❤ by GitHub

示範影片(Demo Video)：

範例連結(Example Link)：
https://www.tinkercad.com/things/9p6iQyMyfO6

Tinkercad Circuits：LED 模擬走馬燈

若您覺得文章寫得不錯，請點選文章上的廣告，來支持小編，謝謝。

本文使用TinkerCad Circuits來示範LED燈的應用：「走馬燈看板」。

材料(Materials)：

Arduino UNO R3 x 1
Small Breadboard x 10
220 ohm Resistor x 10
LED x 10

電路(Circuit)：

十顆 LED 燈的陽極(Anode)分別接到 UNO 的數位腳位 2 ~ 11。

程式碼(The Code)：
無使用陣列版本

	int sPin = 2; // The base pin ID
	int nLEDs = 10; // The number of LEDs
	int delayMS = 100;

	void setup()
	{
	for (int i = sPin; i < sPin + nLEDs; i++)
	{
	pinMode(i, OUTPUT);
	}
	}

	void loop()
	{
	for(int i = sPin; i < sPin + nLEDs; i++)
	{
	digitalWrite(i, LOW);
	delay(delayMS);
	}

	for(int i = sPin; i < sPin + nLEDs; i++)
	{
	digitalWrite(i, HIGH);
	delay(delayMS);
	}

	}

view raw ArduinoLED.ino hosted with ❤ by GitHub

使用陣列版本

	int ledPins[] = {2,3,4,5,6,7,8,9,10,11}; // The LED pins
	int num = sizeof(ledPins) / sizeof(int);
	int delayMS = 100;

	void setup()
	{
	for (int i = 0; i < num ; i++)
	{
	pinMode(ledPins[i], OUTPUT);
	}
	}

	void loop()
	{
	for (int i = 0; i < num ; i++)
	{
	digitalWrite(ledPins[i], LOW);
	delay(delayMS);
	}

	for (int i = 0; i < num ; i++)
	{
	digitalWrite(ledPins[i], HIGH);
	delay(delayMS);
	}
	}