【Arduino 动手做】DIY WS2812 模拟风格 Arduino 环形时钟
这是一款模拟式数字时钟，具有多种显示状态、24 小时闹钟、倒计时闹钟、多种闹钟显示状态……这次我将向你展示如何制作一个美观的环形时钟。该时钟采用 WS2812 环形设计，内含 60 个 LED（4 个四分之一圆 Neopixel 灯 x 15 个 LED），非常适合此用途。这是一款模拟数字时钟，具有多种显示状态、24 小时闹钟、倒计时闹钟、多种闹钟显示状态以及演示模式。小时、分钟和秒分别由相应 LED 的不同颜色表示。
戒指支架是用3D打印机制作的，您可以下载下方的.stl文件。桌面时钟的物理外壳基于Neopixel戒指的尺寸。时钟需要5V/3A或更高的电源供电。代码取自开源项目“Rise and Shine LED Clock”。我只对硬件做了一些小改动，以改变LED的光强度。
【Arduino 动手做】DIY WS2812 模拟风格 Arduino 环形时钟
该装置制作非常简单，仅包含几个组件：- 60 个 LED WS2812 环，由四个四分之一圆形 Neopixels 和 15 个 LED 组成
- Arduino 纳米微控制器
- 带按钮的旋转编码器
- 两个 3A 整流二极管
- 和一个开关
【Arduino 动手做】DIY WS2812 模拟风格 Arduino 环形时钟
开机后（短按3次），我们进入钟面切换模式。左右移动旋转编码器即可切换钟面：共有6种不同的钟面。- 标准时钟，带有 3 个点，红色表示小时，绿色表示分钟，蓝色表示秒
- 呼吸效果
- 每小时亮起 12 个白色 LED
- 带摆锤
- 逐渐改变秒数
- 60分钟计时器
要设置正确的时间，请按住按钮两秒钟以上。闪烁的指示灯指示设置模式，以小时、分钟和秒为单位。按下按钮后，我们将进入闹钟显示。长按按钮，我们将进入闹钟设置模式。再次按下按钮后，我们将进入倒计时模式。在此模式下，系统将对所选时间进行计时，范围为 1 至 60 分钟。
最后是演示模式。在演示模式下，钟面会在特定时间逐一变化。
【Arduino 动手做】DIY WS2812 模拟风格 Arduino 环形时钟
项目代码// Add options for background settings
// TO DO: Clean up and comment code...
// BUG: demo state should start as mode 0 after intro
// NICE TO HAVE: When alarm is cancelled, the alarm still remains set for next day.
//Add the following libraries to the respective folder for you operating system. See http://arduino.cc/en/Guide/Environment
#include <FastLED.h> // FastSPI Library from http://code.google.com/p/fastspi/
#include <Wire.h> //This is to communicate via I2C. On arduino Uno & Nano use pins A4 for SDA (yellow/orange) and A5 for SCL (green). For other boards ee http://arduino.cc/en/Reference/Wire
#include <RTClib.h> // Include the RTClib library to enable communication with the real time clock.
#include <EEPROM.h> // Include the EEPROM library to enable the storing and retrevel of settings.
#include <Bounce.h> // Include the Bounce library for de-bouncing issues with push buttons.
#include <Encoder.h> // Include the Encoder library to read the out puts of the rotary encoders
RTC_DS1307 RTC; // Establishes the chipset of the Real Time Clock
#define LEDStripPin A0 // Pin used for the data to the LED strip
#define menuPin A3 // Pin used for the menu button (green stripe)
#define numLEDs 60 // Number of LEDs in strip
// Setting up the LED strip
struct CRGB leds;
Encoder rotary1(2, 3); // Setting up the Rotary Encoder
DateTime old; // Variable to compare new and old time, to see if it has moved on.
int rotary1Pos= 0;
int subSeconds; // 60th's of a second
int secondBrightness;
int secondBrightness2;
int breathBrightness;
long newSecTime; // Variable to record when a new second starts, allowing to create milli seconds
long oldSecTime;
long flashTime; //
long breathCycleTime;
#define holdTime 1500
int cyclesPerSec;
float cyclesPerSecFloat; // So can be used as a float in calcs
float fracOfSec;
float breathFracOfSec;
boolean demo;
#define demoTime 12 // seconds
long previousDemoTime;
long currentDemoTime;
boolean swingBack = false;
int timeHour;
int timeMin;
int timeSec;
int alarmMin; // The minute of the alarm
int alarmHour; // The hour of the alarm 0-23
int alarmDay = 0; // The day of the alarm
boolean alarmSet; // Whether the alarm is set or not
int modeAddress = 0; // Address of where mode is stored in the EEPROM
int alarmMinAddress = 1; // Address of where alarm minute is stored in the EEPROM
int alarmHourAddress = 2; // Address of where alarm hour is stored in the EEPROM
int alarmSetAddress = 3; // Address of where alarm state is stored in the EEPROM
int alarmModeAddress = 4; // Address of where the alarm mode is stored in the EEPROM
boolean alarmTrig = false; // Whether the alarm has been triggered or not
long alarmTrigTime; // Milli seconds since the alarm was triggered
boolean countDown = false;
long countDownTime = 0;
long currentCountDown = 0;
long startCountDown;
int countDownMin;
int countDownSec;
int countDownFlash;
int demoIntro = 0;
int j = 0;
long timeInterval = 5;
long currentMillis;
long previousMillis = 0;
float LEDBrightness = 0;
float fadeTime;
float brightFadeRad;
int state = 0; // Variable of the state of the clock, with the following defined states
#define clockState 0
#define alarmState 1
#define setAlarmHourState 2
#define setAlarmMinState 3
#define setClockHourState 4
#define setClockMinState 5
#define setClockSecState 6
#define countDownState 7
#define demoState 8
int mode; // Variable of the display mode of the clock
int modeMax = 6; // Change this when new modes are added. This is so selecting modes can go back beyond.
int alarmMode; // Variable of the alarm display mode
int alarmModeMax = 3;
Bounce menuBouncer = Bounce(menuPin,20); // Instantiate a Bounce object with a 50 millisecond debounce time for the menu button
boolean menuButton = false;
boolean menuPressed = false;
boolean menuReleased = false;
int advanceMove = 0;
boolean countTime = false;
long menuTimePressed;
long lastRotary;
int rotaryTime = 1000;
int LEDPosition;
int reverseLEDPosition;
int pendulumPos;
int fiveMins;
int odd;
int LEDOffset = 30;
void setup()
{
// Set up all pins
pinMode(menuPin, INPUT_PULLUP); // Uses the internal 20k pull up resistor. Pre Arduino_v.1.0.1 need to be "digitalWrite(menuPin,HIGH);pinMode(menuPin,INPUT);"
// Start LEDs
LEDS.addLeds<WS2811, LEDStripPin, GRB>(leds, numLEDs); // Structure of the LED data. I have changed to from rgb to grb, as using an alternative LED strip. Test & change these if you're getting different colours.
// Start RTC
Wire.begin(); // Starts the Wire library allows I2C communication to the Real Time Clock
RTC.begin(); // Starts communications to the RTC
Serial.begin(9600); // Starts the serial communications
// Uncomment to reset all the EEPROM addresses. You will have to comment again and reload, otherwise it will not save anything each time power is cycled
// write a 0 to all 512 bytes of the EEPROM
//for (int i = 0; i < 512; i++)
//{EEPROM.write(i, 0);}
// Load any saved setting since power off, such as mode & alarm time
mode = EEPROM.read(modeAddress); // The mode will be stored in the address "0" of the EEPROM
alarmMin = EEPROM.read(alarmMinAddress); // The mode will be stored in the address "1" of the EEPROM
alarmHour = EEPROM.read(alarmHourAddress); // The mode will be stored in the address "2" of the EEPROM
alarmSet = EEPROM.read(alarmSetAddress); // The mode will be stored in the address "2" of the EEPROM
alarmMode = EEPROM.read(alarmModeAddress);
// Prints all the saved EEPROM data to Serial
Serial.print("Mode is ");Serial.println(mode);
Serial.print("Alarm Hour is ");Serial.println(alarmHour);
Serial.print("Alarm Min is ");Serial.println(alarmMin);
Serial.print("Alarm is set ");Serial.println(alarmSet);
Serial.print("Alarm Mode is ");Serial.println(alarmMode);
// create a loop that calcuated the number of counted milliseconds between each second.
DateTime now = RTC.now();
//startTime = millis();
//while (RTC.old() = RTC.new())
//if (now.month() == 1 && now.day() == 1 && now.hour() == 0 && now.minute() == 0 && now.minute() == 0)
// {}
Serial.print("Hour time is... ");
Serial.println(now.hour());
Serial.print("Min time is... ");
Serial.println(now.minute());
Serial.print("Sec time is... ");
Serial.println(now.second());
Serial.print("Year is... ");
Serial.println(now.year());
Serial.print("Month is... ");
Serial.println(now.month());
Serial.print("Day is... ");
Serial.println(now.day());
}
void loop()
{
DateTime now = RTC.now(); // Fetches the time from RTC
// Check for any button presses and action accordingley
menuButton = menuBouncer.update();// Update the debouncer for the menu button and saves state to menuButton
rotary1Pos = rotary1.read(); // Checks the rotary position
if (rotary1Pos <= -2 && lastRotary - millis() >= rotaryTime)
{
advanceMove = -1;
rotary1.write(0);
lastRotary = millis();
}
if (rotary1Pos >= 2 && lastRotary - millis() >= rotaryTime)
{
advanceMove = 1;
rotary1.write(0);
lastRotary = millis();
}
if (menuButton == true || advanceMove != 0 || countTime == true) {buttonCheck(menuBouncer,now);}
// clear LED array
memset(leds, 0, numLEDs * 3);
// Check alarm and trigger if the time matches
if (alarmSet == true && alarmDay != now.day()) // The alarmDay statement ensures it is a newly set alarm or repeat from previous day, not within the minute of an alarm cancel.
{
if (alarmTrig == false) {alarm(now);}
else {alarmDisplay();}
}
// Check the Countdown Timer
if (countDown == true)
{
currentCountDown = countDownTime + startCountDown - now.unixtime();
if ( currentCountDown <= 0)
{
state =countDownState;
}
}
// Set the time LED's
if (state == setClockHourState || state == setClockMinState || state == setClockSecState) {setClockDisplay(now);}
else if (state == alarmState || state == setAlarmHourState || state == setAlarmMinState) {setAlarmDisplay();}
else if (state == countDownState) {countDownDisplay(now);}
else if (state == demoState) {runDemo(now);}
else {timeDisplay(now);}
// Update LEDs
LEDS.show();
}
void buttonCheck(Bounce menuBouncer, DateTime now)
{
if (menuBouncer.fallingEdge()) // Checks if a button is pressed, if so sets countTime to true
{
countTime = true;
Serial.println("rising edge");
}
if (menuBouncer.risingEdge()) // Checks if a button is released,
{
countTime = false;
Serial.println("rising edge");
} // if so sets countTime to false. Now the ...TimePressed will not be updated when enters the buttonCheck,
if (countTime) // otherwise will menuBouncer.duration will
{
menuTimePressed = menuBouncer.duration();
if (menuTimePressed >= (holdTime - 100) && menuTimePressed <= holdTime)
{
clearLEDs();
LEDS.show();
delay(100);
}
}
menuReleased = menuBouncer.risingEdge();
if (menuPressed == true) {Serial.println("Menu Button Pressed");}
if (menuReleased == true) {Serial.println("Menu Button Released");}
Serial.print("Menu Bounce Duration ");
Serial.println(menuTimePressed);
if (alarmTrig == true)
{
alarmTrig = false;
alarmDay = now.day(); // When the alarm is cancelled it will not display until next day. As without it, it would start again if within a minute, or completely turn off the alarm.
delay(300); // I added this 300ms delay, so there is time for the button to be released
return; // This return exits the buttonCheck function, so no actions are performs
}
switch (state)
{
case clockState: // State 0
if (advanceMove == -1 && mode == 0)
{
mode = modeMax;
advanceMove = 0;
}
else if(advanceMove != 0) //if displaying the clock, advance button is pressed & released, then mode will change
{
mode = mode + advanceMove;
EEPROM.write(modeAddress,mode);
advanceMove = 0;
}
else if(menuReleased == true)
{
if (menuTimePressed <= holdTime) {state = alarmState; newSecTime = millis();}// if displaying the clock, menu button is pressed & released, then Alarm is displayed
else {state = setClockHourState;} // if displaying the clock, menu button is held & released, then clock hour can be set
}
break;
case alarmState: // State 1
if (advanceMove == -1 && alarmMode <= 0)
{
alarmMode = alarmModeMax;
alarmSet = 1;
}
else if (advanceMove == 1 && alarmMode >= alarmModeMax)
{
alarmMode = 0;
alarmSet = 0;
}
else if (advanceMove != 0)
{
alarmMode = alarmMode + advanceMove;
if (alarmMode == 0) {alarmSet = 0;}
else {alarmSet = 1;}
}
Serial.print("alarmState is ");
Serial.println(alarmState);
Serial.print("alarmMode is ");
Serial.println(alarmMode);
EEPROM.write(alarmSetAddress,alarmSet);
EEPROM.write(alarmModeAddress,alarmMode);
advanceMove = 0;
alarmTrig = false;
if (menuReleased == true)
{
if (menuTimePressed <= holdTime) {state = countDownState; j = 0;}// if displaying the alarm time, menu button is pressed & released, then clock is displayed
else {state = setAlarmHourState;} // if displaying the alarm time, menu button is held & released, then alarm hour can be set
}
break;
case setAlarmHourState: // State 2
if (menuReleased == true) {state = setAlarmMinState;}
else if (advanceMove == 1 && alarmHour >= 23) {alarmHour = 0;}
else if (advanceMove == -1 && alarmHour <= 0) {alarmHour = 23;}
else if (advanceMove != 0) {alarmHour = alarmHour + advanceMove;}
EEPROM.write(alarmHourAddress,alarmHour);
advanceMove = 0;
break;
case setAlarmMinState: // State 3
if (menuReleased == true)
{
state = alarmState;
alarmDay = 0;
newSecTime = millis();
}
else if (advanceMove == 1 && alarmMin >= 59) {alarmMin = 0;}
else if (advanceMove == -1 && alarmMin <= 0) {alarmMin = 59;}
else if (advanceMove != 0) {alarmMin = alarmMin + advanceMove;}
EEPROM.write(alarmMinAddress,alarmMin);
advanceMove = 0;
break;
case setClockHourState: // State 4
if (menuReleased == true) {state = setClockMinState;}
else if (advanceMove == 1 && now.hour() == 23)
{
RTC.adjust(DateTime(now.year(), now.month(), now.day(), 0, now.minute(), now.second()));
advanceMove = 0;
}
else if (advanceMove == -1 && now.hour() == 0)
{
RTC.adjust(DateTime(now.year(), now.month(), now.day(), 23, now.minute(), now.second()));
advanceMove = 0;
}
else if (advanceMove != 0)
{
RTC.adjust(DateTime(now.year(), now.month(), now.day(), (now.hour() + advanceMove), now.minute(), now.second()));
advanceMove = 0;
}
break;
case setClockMinState: // State 5
if (menuReleased == true) {state = setClockSecState;}
else if (advanceMove == 1 && now.minute() == 59)
{
RTC.adjust(DateTime(now.year(), now.month(), now.day(), now.hour(), 0, now.second()));
advanceMove = 0;
}
else if (advanceMove == -1 && now.minute() == 0)
{
RTC.adjust(DateTime(now.year(), now.month(), now.day(), now.hour(), 59, now.second()));
advanceMove = 0;
}
else if (advanceMove != 0)
{
RTC.adjust(DateTime(now.year(), now.month(), now.day(), now.hour(), (now.minute() + advanceMove), now.second()));
advanceMove = 0;
}
break;
case setClockSecState: // State 6
if (menuReleased == true) {state = clockState;}
else if (advanceMove == 1 && now.second() == 59)
{
RTC.adjust(DateTime(now.year(), now.month(), now.day(), now.hour(), now.minute(), 0));
advanceMove = 0;
}
else if (advanceMove == -1 && now.second() == 0)
{
RTC.adjust(DateTime(now.year(), now.month(), now.day(), now.hour(), now.minute(), 59));
advanceMove = 0;
}
else if (advanceMove != 0)
{
RTC.adjust(DateTime(now.year(), now.month(), now.day(), now.hour(), now.minute(), (now.second() + advanceMove)));
advanceMove = 0;
}
break;
case countDownState: // State 7
if(menuReleased == true)
{
if (menuTimePressed <= holdTime)
{
if (countDown == true && countDownTime <= 0) {countDown = false; countDownTime = 0; currentCountDown = 0;}
else if (countDown == false && countDownTime > 0) {countDown = true; startCountDown = now.unixtime();}
else {state = demoState; demoIntro = 1; j = 0;}// if displaying the count down, menu button is pressed & released, then demo State is displayed
}
else {countDown = false; countDownTime = 0; currentCountDown = 0; j = 0;} // if displaying the clock, menu button is held & released, then the count down is reset
}
else if (advanceMove == -1 && currentCountDown <= 0)
{
countDown = false;
countDownTime = 0;
currentCountDown = 0;
demoIntro = 0;
}
else if (advanceMove == 1 && currentCountDown >= 3600)
{
countDown = false;
countDownTime = 3600;
}
else if (advanceMove != 0) //if displaying the count down, rotary encoder is turned then will change accordingley
{
countDown = false;
countDownTime = currentCountDown - currentCountDown%60 + advanceMove*60; // This rounds the count down minute up to the next minute
}
advanceMove = 0;
break;
case demoState: // State 8
if(menuReleased == true) {state = clockState; mode = EEPROM.read(modeAddress);} // if displaying the demo, menu button pressed then the clock will display and restore to the mode before demo started
break;
}
if (menuReleased || advanceMove !=0) {countTime = false;}
Serial.print("Mode is ");
Serial.println(mode);
Serial.print("State is ");
Serial.println(state);
}
void setAlarmDisplay()
{
for (int i = 0; i < numLEDs; i++)
{
fiveMins = i%5;
if (fiveMins == 0)
{
leds.r = 100;
leds.g = 100;
leds.b = 100;
}
}
if (alarmSet == 0)
{
for (int i = 0; i < numLEDs; i++) // Sets background to red, to state that alarm IS NOT set
{
fiveMins = i%5;
if (fiveMins == 0)
{
leds.r = 20;
leds.g = 0;
leds.b = 0;
}
}
}
else
{
for (int i = 0; i < numLEDs; i++) // Sets background to green, to state that alarm IS set
{
fiveMins = i%5;
if (fiveMins == 0)
{
leds.r = 0;
leds.g = 20;
leds.b = 0;
}
}
}
if (alarmHour <= 11)
{
leds[(alarmHour*5+LEDOffset)%60].r = 255;
}
else
{
leds[((alarmHour - 12)*5+LEDOffset+59)%60].r = 25;
leds[((alarmHour - 12)*5+LEDOffset)%60].r = 255;
leds[((alarmHour - 12)*5+LEDOffset+1)%60].r = 25;
}
leds[(alarmMin+LEDOffset)%60].g = 100;
flashTime = millis();
if (state == setAlarmHourState && flashTime%300 >= 150)
{
leds[(((alarmHour%12)*5)+LEDOffset+59)%60].r = 0;
leds[(((alarmHour%12)*5)+LEDOffset)%60].r = 0;
leds[(((alarmHour%12)*5)+LEDOffset+1)%60].r = 0;
}
if (state == setAlarmMinState && flashTime%300 >= 150)
{
leds[(alarmMin+LEDOffset)%60].g = 0;
}
leds[(alarmMode+LEDOffset)%60].b = 255;
}
void setClockDisplay(DateTime now)
{
for (int i = 0; i < numLEDs; i++)
{
fiveMins = i%5;
if (fiveMins == 0)
{
leds.r = 10;
leds.g = 10;
leds.b = 10;
}
}
if (now.hour() <= 11) {leds[(now.hour()*5+LEDOffset)%60].r = 255;}
else
{
leds[((now.hour() - 12)*5+LEDOffset+59)%60].r = 255;
leds[((now.hour() - 12)*5+LEDOffset)%60].r = 255;
leds[((now.hour() - 12)*5+LEDOffset+1)%60].r = 255;
}
flashTime = millis();
if (state == setClockHourState && flashTime%300 >= 150)
{
leds[(((now.hour()%12)*5)+LEDOffset+59)%60].r = 0;
leds[((now.hour()%12)*5+LEDOffset)%60].r = 0;
leds[(((now.hour()%12)*5)+LEDOffset+1)%60].r = 0;
}
if (state == setClockMinState && flashTime%300 >= 150) {leds[(now.minute()+LEDOffset)%60].g = 0;}
else {leds[(now.minute()+LEDOffset)%60].g = 255;}
if (state == setClockSecState && flashTime%300 >= 150) {leds[(now.second()+LEDOffset)%60].b = 0;}
else {leds[(now.second()+LEDOffset)%60].b = 255;}
}
// Check if alarm is active and if is it time for the alarm to trigger
void alarm(DateTime now)
{
if ((alarmMin == now.minute()%60) && (alarmHour == now.hour()%24)) //check if the time is the same to trigger alarm
{
alarmTrig = true;
alarmTrigTime = millis();
}
}
void alarmDisplay() // Displays the alarm
{
switch (alarmMode)
{
case 1:
// set all LEDs to a dim white
for (int i = 0; i < numLEDs; i++)
{
leds.r = 100;
leds.g = 100;
leds.b = 100;
}
break;
case 2:
LEDPosition = ((millis() - alarmTrigTime)/300);
reverseLEDPosition = 60 - LEDPosition;
if (LEDPosition >= 0 && LEDPosition <= 29)
{
for (int i = 0; i < LEDPosition; i++)
{
leds[(i+LEDOffset)%60].r = 5;
leds[(i+LEDOffset)%60].g = 5;
leds[(i+LEDOffset)%60].b = 5;
}
}
if (reverseLEDPosition <= 59 && reverseLEDPosition >= 31)
{
for (int i = 59; i > reverseLEDPosition; i--)
{
leds[(i+LEDOffset)%60].r = 5;
leds[(i+LEDOffset)%60].g = 5;
leds[(i+LEDOffset)%60].b = 5;
}
}
if (LEDPosition >= 30)
{
for (int i = 0; i < numLEDs; i++)
{
leds[(i+LEDOffset)%60].r = 5;
leds[(i+LEDOffset)%60].g = 5;
leds[(i+LEDOffset)%60].b = 5;
}
}
break;
case 3:
fadeTime = 60000;
brightFadeRad = (millis() - alarmTrigTime)/fadeTime; // Divided by the time period of the fade up.
if (millis() > alarmTrigTime + fadeTime) LEDBrightness = 255;
else LEDBrightness = 255.0*(1.0+sin((1.57*brightFadeRad)-1.57));
Serial.println(brightFadeRad);
Serial.println(LEDBrightness);
for (int i = 0; i < numLEDs; i++)
{
leds.r = LEDBrightness;
leds.g = LEDBrightness;
leds.b = LEDBrightness;
}
break;
// Currently not working
// case 4:
// fadeTime = 60000;
// brightFadeRad = (millis() - alarmTrigTime)/fadeTime; // Divided by the time period of the fade up.
// LEDPosition = ((millis() - alarmTrigTime)/(fadeTime/30));
//// if (millis() > alarmTrigTime + fadeTime) LEDBrightness = 255; // If the fade time is complete, then the LED brightness will be set to full.
// if (brightFadeRad <= 0) LEDBrightness = 0;
// else if (brightFadeRad >= 0) LEDBrightness = 1;
// else LEDBrightness = 255.0*(1.0+sin((1.57*brightFadeRad)-1.57));
//
//// Serial.println(brightFadeRad);
//// Serial.println(LEDBrightness);
// reverseLEDPosition = 60 - LEDPosition;
// if (LEDPosition >= 0 && LEDPosition <= 29)
// {
// for (int i = 0; i < LEDPosition; i++)
// {
// leds.r = LEDBrightness;
// leds.g = LEDBrightness;
// leds.b = LEDBrightness;
// }
// }
// if (reverseLEDPosition <= 59 && reverseLEDPosition >= 31)
// {
// for (int i = 59; i > reverseLEDPosition; i--)
// {
// leds.r = LEDBrightness;
// leds.g = LEDBrightness;
// leds.b = LEDBrightness;
// }
// }
// if (LEDPosition >= 30)
// {
// for (int i = 0; i < numLEDs; i++)
// {
// leds.r = LEDBrightness;
// leds.g = LEDBrightness;
// leds.b = LEDBrightness;
// }
// }
// break;
}
}
//
void countDownDisplay(DateTime now)
{
flashTime = millis();
if (countDown == true)
{
currentCountDown = countDownTime + startCountDown - now.unixtime();
if (currentCountDown > 0)
{
countDownMin = currentCountDown / 60;
countDownSec = currentCountDown%60 * 4; // have multiplied by 4 to create brightness
for (int i = 0; i < countDownMin; i++) {leds[(i+LEDOffset+1)%60].b = 240;} // Set a blue LED for each complete minute that is remaining
leds[(countDownMin+LEDOffset+1)%60].b = countDownSec; // Display the remaining secconds of the current minute as its brightness
}
else
{
countDownFlash = now.unixtime()%2;
if (countDownFlash == 0)
{
for (int i = 0; i < numLEDs; i++) // Set the background as all off
{
leds.r = 0;
leds.g = 0;
leds.b = 0;
}
}
else
{
for (int i = 0; i < numLEDs; i++) // Set the background as all blue
{
leds.r = 0;
leds.g = 0;
leds.b = 255;
}
}
}
}
else
{
currentCountDown = countDownTime;
if (countDownTime == 0)
{
currentMillis = millis();
clearLEDs();
switch (demoIntro)
{
case 0:
for (int i = 0; i < j; i++) {leds[(i+LEDOffset+1)%60].b = 20;}
if (currentMillis - previousMillis > timeInterval) {j++; previousMillis = currentMillis;}
if (j == numLEDs) {demoIntro = 1;}
break;
case 1:
for (int i = 0; i < j; i++) {leds[(i+LEDOffset+1)%60].b = 20;}
if (currentMillis - previousMillis > timeInterval) {j--; previousMillis = currentMillis;}
if (j < 0) {demoIntro = 0;}
break;
}
}
else if (countDownTime > 0 && flashTime%300 >= 150)
{
countDownMin = currentCountDown / 60; //
for (int i = 0; i < countDownMin; i++) {leds[(i+LEDOffset+1)%60].b = 255;} // Set a blue LED for each complete minute that is remaining
}
}
}
void runDemo(DateTime now)
{
currentDemoTime = now.unixtime();
currentMillis = millis();
clearLEDs();
switch (demoIntro)
{
case 0:
timeDisplay(now);
if (currentDemoTime - previousDemoTime > demoTime) {previousDemoTime = currentDemoTime; mode++;}
break;
case 1:
for (int i = 0; i < j; i++) {leds.r = 255;}
if (currentMillis - previousMillis > timeInterval) {j++; previousMillis = currentMillis;}
if (j == numLEDs) {j = 0; demoIntro++;}
break;
case 2:
for (int i = j; i < numLEDs; i++) {leds.r = 255;}
if (currentMillis - previousMillis > timeInterval) {j++; previousMillis = currentMillis;}
if (j == numLEDs) {j = 0; demoIntro++;}
break;
case 3:
for (int i = 0; i < j; i++) {leds.g = 255;}
if (currentMillis - previousMillis > timeInterval) {j++; previousMillis = currentMillis;}
if (j == numLEDs) {j = 0; demoIntro++;}
break;
case 4:
for (int i = j; i < numLEDs; i++) {leds.g = 255;}
if (currentMillis - previousMillis > timeInterval) {j++; previousMillis = currentMillis;}
if (j == numLEDs) {j = 0; demoIntro++;}
break;
case 5:
for (int i = 0; i < j; i++) {leds.b = 255;}
if (currentMillis - previousMillis > timeInterval) {j++; previousMillis = currentMillis;}
if (j == numLEDs) {j = 0; demoIntro++;}
break;
case 6:
for (int i = j; i < numLEDs; i++) {leds.b = 255;}
if (currentMillis - previousMillis > timeInterval) {j++; previousMillis = currentMillis;}
if (j == numLEDs) {j = 0; demoIntro++;}
break;
case 7:
for (int i = 0; i < j; i++) {leds.r = 255; leds.g = 255; leds.b = 255;}
if (currentMillis - previousMillis > timeInterval) {j++; previousMillis = currentMillis;}
if (j == numLEDs) {j = 0; demoIntro++;}
break;
case 8:
for (int i = j; i < numLEDs; i++) {leds.r = 255; leds.g = 255; leds.b = 255;}
if (currentMillis - previousMillis > timeInterval) {j++; previousMillis = currentMillis;}
if (j == numLEDs)
{
demoIntro = 0;
mode = 0;
Serial.print("Mode is ");
Serial.println(mode);
Serial.print("State is ");
Serial.println(state);
}
break;
}
}
void clearLEDs()
{
for (int i = 0; i < numLEDs; i++) // Set all the LEDs to off
{
leds.r = 0;
leds.g = 0;
leds.b = 0;
}
}
void timeDisplay(DateTime now)
{
switch (mode)
{
case 0:
minimalClock(now);
break;
case 1:
basicClock(now);
break;
case 2:
smoothSecond(now);
break;
case 3:
outlineClock(now);
break;
case 4:
minimalMilliSec(now);
break;
case 5:
simplePendulum(now);
break;
case 6:
breathingClock(now);
break;
default: // Keep this here and add more timeDisplay modes as defined cases.
{
mode = 0;
}
}
}
////////////////////////////////////////////////////////////////////////////////////////////
// CLOCK DISPLAY MODES
// Add any new display mode functions here. Then add to the "void timeDisplay(DateTime now)" function.
// Add each of the new display mode functions as a new "case", leaving default last.
////////////////////////////////////////////////////////////////////////////////////////////
//
void minimalClock(DateTime now)
{
unsigned char hourPos = (now.hour()%12)*5;
leds[(hourPos+LEDOffset)%60].r = 255;
leds[(now.minute()+LEDOffset)%60].g = 255;
leds[(now.second()+LEDOffset)%60].b = 255;
}
//
void basicClock(DateTime now)
{
unsigned char hourPos = ((now.hour()%12)*5 + (now.minute()+6)/12);
leds[(hourPos+LEDOffset+59)%60].r = 255;
leds[(hourPos+LEDOffset+59)%60].g = 0;
leds[(hourPos+LEDOffset+59)%60].b = 0;
leds[(hourPos+LEDOffset)%60].r = 255;
leds[(hourPos+LEDOffset)%60].g = 0;
leds[(hourPos+LEDOffset)%60].b = 0;
leds[(hourPos+LEDOffset+1)%60].r = 255;
leds[(hourPos+LEDOffset+1)%60].g = 0;
leds[(hourPos+LEDOffset+1)%60].b = 0;
leds[(now.minute()+LEDOffset)%60].r = 0;
leds[(now.minute()+LEDOffset)%60].g = 255;
leds[(now.minute()+LEDOffset)%60].b = 0;
leds[(now.second()+LEDOffset)%60].r = 0;
leds[(now.second()+LEDOffset)%60].g = 0;
leds[(now.second()+LEDOffset)%60].b = 255;
}
//
void smoothSecond(DateTime now)
{
if (now.second()!=old.second())
{
old = now;
cyclesPerSec = millis() - newSecTime;
cyclesPerSecFloat = (float) cyclesPerSec;
newSecTime = millis();
}
// set hour, min & sec LEDs
fracOfSec = (millis() - newSecTime)/cyclesPerSecFloat;// This divides by 733, but should be 1000 and not sure why???
if (subSeconds < cyclesPerSec) {secondBrightness = 50.0*(1.0+sin((3.14*fracOfSec)-1.57));}
if (subSeconds < cyclesPerSec) {secondBrightness2 = 50.0*(1.0+sin((3.14*fracOfSec)+1.57));}
unsigned char hourPos = ((now.hour()%12)*5 + (now.minute()+6)/12);
// The colours are set last, so if on same LED mixed colours are created
leds[(hourPos+LEDOffset+59)%60].r = 255;
leds[(hourPos+LEDOffset)%60].r = 255;
leds[(hourPos+LEDOffset+1)%60].r = 255;
leds[(now.minute()+LEDOffset)%60].g = 255;
leds[(now.second()+LEDOffset)%60].b = secondBrightness;
leds[(now.second()+LEDOffset+59)%60].b = secondBrightness2;
}
//
void outlineClock(DateTime now)
{
for (int i = 0; i < numLEDs; i++)
{
fiveMins = i%5;
if (fiveMins == 0)
{
leds.r = 100;
leds.g = 100;
leds.b = 100;
}
}
unsigned char hourPos = ((now.hour()%12)*5 + (now.minute()+6)/12);
leds[(hourPos+LEDOffset+59)%60].r = 255;
leds[(hourPos+LEDOffset)%60].r = 255;
leds[(hourPos+LEDOffset+1)%60].r = 255;
leds[(now.minute()+LEDOffset)%60].g = 255;
leds[(now.second()+LEDOffset)%60].b = 255;
}
//
void minimalMilliSec(DateTime now)
{
if (now.second()!=old.second())
{
old = now;
cyclesPerSec = (millis() - newSecTime);
newSecTime = millis();
}
// set hour, min & sec LEDs
unsigned char hourPos = ((now.hour()%12)*5 + (now.minute()+6)/12);
subSeconds = (((millis() - newSecTime)*60)/cyclesPerSec)%60;// This divides by 733, but should be 1000 and not sure why???
// Millisec lights are set first, so hour/min/sec lights override and don't flicker as millisec passes
leds[(subSeconds+LEDOffset)%60].r = 50;
leds[(subSeconds+LEDOffset)%60].g = 50;
leds[(subSeconds+LEDOffset)%60].b = 50;
// The colours are set last, so if on same LED mixed colours are created
leds[(hourPos+LEDOffset+59)%60].r = 255;
leds[(hourPos+LEDOffset)%60].r = 255;
leds[(hourPos+LEDOffset+1)%60].r = 255;
leds[(now.minute()+LEDOffset)%60].g = 255;
leds[(now.second()+LEDOffset)%60].b = 255;
}
// Pendulum will be at the bottom and left for one second and right for one second
void simplePendulum(DateTime now)
{
if (now.second()!=old.second())
{
old = now;
cyclesPerSec = millis() - newSecTime;
cyclesPerSecFloat = (float) cyclesPerSec;
newSecTime = millis();
if (swingBack == true) {swingBack = false;}
else {swingBack = true;}
}
// set hour, min & sec LEDs
fracOfSec = (millis() - newSecTime)/cyclesPerSecFloat;// This divides by 733, but should be 1000 and not sure why???
if (subSeconds < cyclesPerSec && swingBack == true) {pendulumPos = 27.0 + 3.4*(1.0+sin((3.14*fracOfSec)-1.57));}
if (subSeconds < cyclesPerSec && swingBack == false) {pendulumPos = 27.0 + 3.4*(1.0+sin((3.14*fracOfSec)+1.57));}
unsigned char hourPos = ((now.hour()%12)*5 + (now.minute()+6)/12);
// Pendulum lights are set first, so hour/min/sec lights override and don't flicker as millisec passes
leds[(pendulumPos + LEDOffset)%60].r = 100;
leds[(pendulumPos + LEDOffset)%60].g = 100;
leds[(pendulumPos + LEDOffset)%60].b = 100;
// The colours are set last, so if on same LED mixed colours are created
leds[(hourPos+LEDOffset+59)%60].r = 255;
leds[(hourPos+LEDOffset)%60].r = 255;
leds[(hourPos+LEDOffset+1)%60].r = 255;
leds[(now.minute()+LEDOffset)%60].g = 255;
leds[(now.second()+LEDOffset)%60].b = 255;
}
void breathingClock(DateTime now)
{
if (alarmTrig == false)
{
breathBrightness = 15.0*(1.0+sin((3.14*millis()/2000.0)-1.57));
for (int i = 0; i < numLEDs; i++)
{
fiveMins = i%5;
if (fiveMins == 0)
{
leds.r = breathBrightness + 5;
leds.g = breathBrightness + 5;
leds.b = breathBrightness + 5;
}
else
{
leds.r = 0;
leds.g = 0;
leds.b = 0;
}
}
}
unsigned char hourPos = ((now.hour()%12)*5 + (now.minute()+6)/12);
leds[(hourPos+LEDOffset+59)%60].r = 255;
leds[(hourPos+LEDOffset)%60].r = 255;
leds[(hourPos+LEDOffset+1)%60].r = 255;
leds[(now.minute()+LEDOffset)%60].g = 255;
leds[(now.second()+LEDOffset)%60].b = 255;
}
/*
// Cycle through the color wheel, equally spaced around the belt
void rainbowCycle(uint8_t wait)
{
uint16_t i, j;
for (j=0; j < 384 * 5; j++)
{ // 5 cycles of all 384 colors in the wheel
for (i=0; i < numLEDs; i++)
{
// tricky math! we use each pixel as a fraction of the full 384-color
// wheel (thats the i / strip.numPixels() part)
// Then add in j which makes the colors go around per pixel
// the % 384 is to make the wheel cycle around
strip.setPixelColor(i, Wheel(((i * 384 / numLEDs) + j) % 384));
}
delay(wait);
}
}
//Input a value 0 to 384 to get a color value.
//The colours are a transition r - g - b - back to r
uint32_t Wheel(uint16_t WheelPos)
{
byte r, g, b;
switch(WheelPos / 128)
{
case 0:
r = 127 - WheelPos % 128; // red down
g = WheelPos % 128; // green up
b = 0; // blue off
break;
case 1:
g = 127 - WheelPos % 128; // green down
b = WheelPos % 128; // blue up
r = 0; // red off
break;
case 2:
b = 127 - WheelPos % 128; // blue down
r = WheelPos % 128; // red up
g = 0; // green off
break;
}
return(strip.Color(r,g,b));
}
*/
【Arduino 动手做】DIY WS2812 模拟风格 Arduino 环形时钟
附录【Arduino 动手做】DIY WS2812 模拟风格 Arduino 环形时钟
项目链接：https://www.hackster.io/mircemk/diy-ws2812-analog-style-arduino-ring-clock-f58ba6
项目作者：北马其顿 米尔塞姆克（Mirko Pavleski）
项目视频 ：https://www.youtube.com/watch?v=hyZMtKf4GrI&t=2s
项目代码：https://www.hackster.io/code_files/551627/download
3D 打印：https://hacksterio.s3.amazonaws.com/uploads/attachments/1364678/ring_2ZlrY2euoH.stl
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