Commander1024/led-ring-clock-ntp
Commander1024/led-ring-clock-ntp
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jackw01 2017-09-28 17:06:10 -07:00
parent 632ac569c2
commit 89210dc886
3 changed files with 60 additions and 46 deletions
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4
README.md
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@ -1,9 +1,9 @@
# led-ring-clock
An Arduino-based analog clock using an Adafruit NeoPixel ring as a display.
An Arduino-based analog clock using an WS2812B addressable RGB LED ring as a display.
This sketch requires the FastLED library, the Wire library (built-in), the EEPROM library (built-in), and the Adafruit RTClib.
https://github.com/FastLED/FastLED
https://github.com/adafruit/RTClib
The NeoPixel ring is connected to digital pin 3. Momentary N/O button is connected to digital pin 4. 20K potentiometer is connected to power and ground on both sides and the wiper is connected to Analog 0. DS1307 RTC breakout is connected to default I2C pins. This code has only been tested with a ring of 24 NeoPixels, but should (hopefully) work with any size. The code should work on any ATmega328 based board
The LED ring is connected to digital pin 3. Momentary N/O button is connected to digital pin 4 with 10K pullup resistor. 10K potentiometer is connected across power and ground and the wiper is connected to Analog 0. DS1307 RTC breakout is connected to the board's default I2C pins. This code has only been tested with an Adafruit 24 Neopixel Ring, but should (hopefully) work with any type or size of WS2812B ring, and with minimal changes it should work with rings using other types of RGB LEDs. The code should work on any ATmega328 based board.

102
led-ring-clock.ino
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@ -17,7 +17,7 @@ const int pinLeds = 3;
const int pinButton = 4;
const int pinBrightness = 0;
const int neoPixelRingSize = 24; // Number of NeoPixels in ring
const int ledRingSize = 24; // Number of LEDs in ring
// Default colors
CRGB red = CRGB(255, 0, 0);
@ -69,13 +69,15 @@ const uint8_t PROGMEM gamma[] = {
177,180,182,184,186,189,191,193,196,198,200,203,205,208,210,213,
215,218,220,223,225,228,231,233,236,239,241,244,247,249,252,255 };
CRGB leds[neoPixelRingSize];
CRGB leds[ledRingSize];
RTC_DS1307 rtc;
int clockMode, colorScheme, gradient;
int clockModeMax = 4;
int buttonState = 0;
const int minBrightness = 4;
int currentBrightness;
uint8_t previousBrightness[16];
int counter = 0;
int timer = 0;
@ -89,8 +91,7 @@ void setup() {
Serial.begin(57600);
// Init FastLED
FastLED.addLeds<NEOPIXEL, pinLeds>(leds, neoPixelRingSize);
//FastLED.setCorrection(TypicalSMD5050);
FastLED.addLeds<NEOPIXEL, pinLeds>(leds, ledRingSize);
FastLED.setTemperature(Halogen);
FastLED.show();
@ -109,22 +110,22 @@ void setup() {
secondColor = colorSchemes[colorScheme][3];
// Serial debug
Serial.println("WS2812 LED Ring Clock by jackw01");
Serial.println("WS2812B LED Ring Clock by jackw01");
// Light mode
if (digitalRead(pinButton) == LOW) {
for (int i = 0; i < neoPixelRingSize; i++) leds[i] = white;
for (int i = 0; i < ledRingSize; i++) leds[i] = white;
FastLED.show();
delay(60000);
}
// Test animation
for (int i = 0; i < neoPixelRingSize; i++) {
for (int i = 0; i < ledRingSize; i++) {
leds[i] = white;
FastLED.show();
delay(40);
}
for (int i = 0; i < neoPixelRingSize; i++) {
for (int i = 0; i < ledRingSize; i++) {
leds[i] = off;
FastLED.show();
delay(40);
@ -177,7 +178,20 @@ void loop() {
void showClock() {
FastLED.setBrightness(map(analogRead(pinBrightness), 0, 1023, minBrightness, 255));
// Moving average of brightness to smooth out noisy potentiometers
int sum = 0;
for (int i = 15; i > 0; i--) {
previousBrightness[i] = previousBrightness[i - 1];
sum += previousBrightness[i];
}
previousBrightness[0] = map(analogRead(pinBrightness), 0, 1023, minBrightness, 255);
sum += previousBrightness[0];
currentBrightness = sum / 16;
FastLED.setBrightness(currentBrightness);
if (clockMode == 0) ringClock();
else if (clockMode == 1) dotClock();
@ -208,7 +222,7 @@ void printDebugMessage() {
Serial.print("Color scheme: ");
Serial.println(colorScheme);
Serial.print("Brightness: ");
Serial.println(map(analogRead(pinBrightness), 0, 1023, minBrightness, 255));
Serial.println(currentBrightness);
}
// Show a ring clock
@ -224,12 +238,12 @@ void ringClock() {
int hour;
if (now.hour() > 12) hour = (now.hour() - 12) * (neoPixelRingSize / 12);
else hour = now.hour() * (neoPixelRingSize / 12);
if (now.hour() > 12) hour = (now.hour() - 12) * (ledRingSize / 12);
else hour = now.hour() * (ledRingSize / 12);
newHour = hour + int(map(now.minute(), 0, 59, 0, (neoPixelRingSize / 12) - 1));
newMinute = int(map(now.minute(), 0, 59, 0, neoPixelRingSize - 1));
newSecond = int(map(now.second(), 0, 59, 0, neoPixelRingSize - 1));
newHour = hour + int(map(now.minute(), 0, 59, 0, (ledRingSize / 12) - 1));
newMinute = int(map(now.minute(), 0, 59, 0, ledRingSize - 1));
newSecond = int(map(now.second(), 0, 59, 0, ledRingSize - 1));
if (newMinute > newHour) {
for (int i = 0; i < newMinute; i++) leds[i] = minuteColor;
@ -257,12 +271,12 @@ void dotClock() {
int hour;
if (now.hour() > 12) hour = (now.hour() - 12) * (neoPixelRingSize / 12);
else hour = now.hour() * (neoPixelRingSize / 12);
if (now.hour() > 12) hour = (now.hour() - 12) * (ledRingSize / 12);
else hour = now.hour() * (ledRingSize / 12);
newHour = hour + int(map(now.minute(), 0, 59, 0, (neoPixelRingSize / 12) - 1));
newMinute = int(map(now.minute(), 0, 59, 0, neoPixelRingSize - 1));
newSecond = int(map(now.second(), 0, 59, 0, neoPixelRingSize - 1));
newHour = hour + int(map(now.minute(), 0, 59, 0, (ledRingSize / 12) - 1));
newMinute = int(map(now.minute(), 0, 59, 0, ledRingSize - 1));
newSecond = int(map(now.second(), 0, 59, 0, ledRingSize - 1));
for (int i = newHour - 1; i < newHour + 2; i++) leds[wrap(i)] = hourColor;
@ -286,12 +300,12 @@ void rainbowDotClock() {
int hour;
if (now.hour() > 12) hour = (now.hour() - 12) * (neoPixelRingSize / 12);
else hour = now.hour() * (neoPixelRingSize / 12);
if (now.hour() > 12) hour = (now.hour() - 12) * (ledRingSize / 12);
else hour = now.hour() * (ledRingSize / 12);
newHour = hour + int(map(now.minute(), 0, 59, 0, (neoPixelRingSize / 12) - 1));
newMinute = int(map(now.minute(), 0, 59, 0, neoPixelRingSize - 1));
newSecond = int(map(now.second(), 0, 59, 0, neoPixelRingSize - 1));
newHour = hour + int(map(now.minute(), 0, 59, 0, (ledRingSize / 12) - 1));
newMinute = int(map(now.minute(), 0, 59, 0, ledRingSize - 1));
newSecond = int(map(now.second(), 0, 59, 0, ledRingSize - 1));
CRGB newHourColor = Wheel(int(map(newHour, 0, 12, 0, 255)));
CRGB newMinuteColor = Wheel(int(map(now.minute(), 0, 59, 0, 255)));
@ -321,12 +335,12 @@ void timeColorClock() {
int hour;
if (now.hour() > 12) hour = (now.hour() - 12) * (neoPixelRingSize / 12);
else hour = now.hour() * (neoPixelRingSize / 12);
if (now.hour() > 12) hour = (now.hour() - 12) * (ledRingSize / 12);
else hour = now.hour() * (ledRingSize / 12);
newHour = hour + int(map(now.minute(), 0, 59, 0, (neoPixelRingSize / 12) - 1));
newMinute = int(map(now.minute(), 0, 59, 0, neoPixelRingSize - 1));
newSecond = int(map(now.second(), 0, 59, 0, neoPixelRingSize - 1));
newHour = hour + int(map(now.minute(), 0, 59, 0, (ledRingSize / 12) - 1));
newMinute = int(map(now.minute(), 0, 59, 0, ledRingSize - 1));
newSecond = int(map(now.second(), 0, 59, 0, ledRingSize - 1));
decimalHour = now.hour() + map(now.minute() + map(now.second(), 0, 59, 0, 1), 0, 59, 0, 1);
@ -354,14 +368,14 @@ void glowClock() {
int hour;
if (now.hour() > 12) hour = (now.hour() - 12) * (neoPixelRingSize / 12);
else hour = now.hour() * (neoPixelRingSize / 12);
if (now.hour() > 12) hour = (now.hour() - 12) * (ledRingSize / 12);
else hour = now.hour() * (ledRingSize / 12);
newHour = hour + int(map(now.minute(), 0, 59, 0, (neoPixelRingSize / 12) - 1));
newMinute = int(map(now.minute(), 0, 59, 0, neoPixelRingSize - 1));
newSecond = int(map(now.second(), 0, 59, 0, neoPixelRingSize - 1));
newHour = hour + int(map(now.minute(), 0, 59, 0, (ledRingSize / 12) - 1));
newMinute = int(map(now.minute(), 0, 59, 0, ledRingSize - 1));
newSecond = int(map(now.second(), 0, 59, 0, ledRingSize - 1));
for (int i = -6; i < neoPixelRingSize + 6; i++) {
for (int i = -6; i < ledRingSize + 6; i++) {
int j;
@ -394,12 +408,12 @@ void gradientHandsClock() {
int hour;
if (now.hour() > 12) hour = (now.hour() - 12) * (neoPixelRingSize / 12);
else hour = now.hour() * (neoPixelRingSize / 12);
if (now.hour() > 12) hour = (now.hour() - 12) * (ledRingSize / 12);
else hour = now.hour() * (ledRingSize / 12);
newHour = hour + int(map(now.minute(), 0, 59, 0, (neoPixelRingSize / 12) - 1));
newMinute = int(map(now.minute(), 0, 59, 0, neoPixelRingSize - 1));
newSecond = int(map(now.second(), 0, 59, 0, neoPixelRingSize - 1));
newHour = hour + int(map(now.minute(), 0, 59, 0, (ledRingSize / 12) - 1));
newMinute = int(map(now.minute(), 0, 59, 0, ledRingSize - 1));
newSecond = int(map(now.second(), 0, 59, 0, ledRingSize - 1));
for (int i = 0; i < 6; i++) blendAdd(wrap(i + (newHour - 1)), gradients[gradient][i], 0.8);
@ -412,7 +426,7 @@ void gradientHandsClock() {
void clearLeds() {
for (int i = 0; i < neoPixelRingSize; i++) leds[i] = CRGB(0, 0, 0);
for (int i = 0; i < ledRingSize; i++) leds[i] = CRGB(0, 0, 0);
}
// Enhanced additive blending
@ -426,8 +440,8 @@ void blendAdd(int position, CRGB color, double brightness) {
// Wrap around LED ring
int wrap(int i) {
if (i >= neoPixelRingSize) return i - neoPixelRingSize;
else if (i < 0) return neoPixelRingSize + i;
if (i >= ledRingSize) return i - ledRingSize;
else if (i < 0) return ledRingSize + i;
else return i;
}

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