Added link to 2nd blog post in README.

Added intermediate Files for direct laser usage - probably specific for the warpzone laser software.

README.md

@@ -1,13 +1,25 @@
-# led-ring-clock
+# led-ring-clock
-An Arduino-based analog clock using an WS2812B addressable RGB LED 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.
+This sketch requires the FastLED library, the Wire library (built-in), the EEPROM library (built-in), and the NtpClientLib
-
+(currently requires develop branch).
-https://github.com/FastLED/FastLED
+
-https://github.com/adafruit/RTClib
+https://github.com/FastLED/FastLED
-
+
-### 3D-printable enclosure
+https://github.com/gmag11/NtpClient/tree/develop
-Design files available on Thingiverse: https://www.thingiverse.com/thing:2730265
+
-
+### 3D-printable enclosure for NeoPixel Ring (24 LEDs)
-### Electronics information
+Design files available on Thingiverse: https://www.thingiverse.com/thing:2730265
-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.
+
+### Electronics information
+The LED ring is connected to digital pin 3. Momentary N/O button is connected to digital pin 5.
+10K potentiometer is connected across power and ground and the wiper is connected to Analog 0.
+This code has been tested with WS2812B LED Strips of up to 120 LEDs, but more should
+be possible. With minimal changes it should work with rings using other types of RGB LEDs. 
+The code should work on any ATmega328 based board.
+
+### Blog-Post with howto and more details (German)
+https://www.commander1024.de/wordpress/2019/02/analoge-arduino-led-uhr/
+
+### Blog-Post with hardware build instructions (German)
+https://www.commander1024.de/wordpress/2019/02/bau-der-analogen-uhr/

constants.h

@@ -1,6 +1,7 @@
 //
 // WS2812 LED Analog Clock Firmware
 // Copyright (c) 2016-2018 jackw01
+// NTP Changes: 2019 Commander1024
 // This code is distrubuted under the MIT License, see LICENSE for details
 //
 
@@ -12,11 +13,19 @@
 
 // IO Pin Assignments
 const uint8_t pinLeds = 3;
-const uint8_t pinButton = 4;
+const uint8_t pinButton = 5;
 const uint8_t pinBrightness = 0;
 
+// Define MAC Address
+byte mac[] = {
+    0xA8, 0x61, 0x0A, 0x10, 0x24, 0x01
+};
+
+// NTP Server to use
+char* ntp_server = "warpfire.warpzone";
+
 // Number of LEDs in ring
-const int ledRingSize = 24;
+const int ledRingSize = 60;
 
 // Default colors - tweaked to look right on WS2812Bs
 const CRGB red = CRGB(255, 0, 0);
@@ -58,8 +67,8 @@ const int buttonClickRepeatDelayMs = 1500;
 const int buttonLongPressDelayMs = 300;
 
 // Serial
-const long serialPortBaudRate = 115200;
+const long serialPortBaudRate = 9600;
-const int debugMessageIntervalMs = 2000;
+const int debugMessageIntervalMs = 5000;
 
 // Clock modes
 typedef enum {

led-ring-clock.ino

@@ -1,20 +1,25 @@
 //
 // WS2812 LED Analog Clock Firmware
 // Copyright (c) 2016-2018 jackw01
+// NTP Changes: 2019 Commander1024
 // This code is distrubuted under the MIT License, see LICENSE for details
 //
 
 #include <math.h>
 #include <FastLED.h>
-#include <Wire.h>
 #include <EEPROM.h>
-#include <RTClib.h>
+#include <TimeLib.h>
+#include <NtpClientLib.h>
+#include <SPI.h>
+#include <EthernetUdp.h>
+#include <Ethernet.h>
+#include <Dns.h>
+#include <Dhcp.h>
 
 #include "constants.h"
 
-// LED ring and RTC
+// LED ring size
 CRGB leds[ledRingSize];
-RTC_DS1307 rtc;
 
 // Globals to keep track of state
 int clockMode, colorScheme;
@@ -26,23 +31,41 @@ uint8_t previousBrightness[16];
 int lastSecondsValue = 0;
 uint32_t lastMillisecondsSetTime = 0;
 int milliseconds;
-DateTime now;
 
 void setup() {
 	// Begin serial port
 	Serial.begin(serialPortBaudRate);
 
+    // Initialize Network and NTP
+    if (Ethernet.begin (mac) == 0) {
+        Serial.println ("Failed to configure Ethernet using DHCP");
+        // no point in carrying on, so do nothing forevermore:
+        for (;;)
+            ;
+    }
+    NTP.onNTPSyncEvent ([](NTPSyncEvent_t error) {
+        if (error) {
+            Serial.print ("Time Sync error: ");
+            if (error == noResponse)
+                Serial.println ("NTP server not reachable");
+            else if (error == invalidAddress)
+                Serial.println ("Invalid NTP server address");
+        } else {
+            Serial.print ("Got NTP time: ");
+            Serial.println (NTP.getTimeDateString (NTP.getLastNTPSync ()));
+        }
+    });
+    NTP.setInterval (60, 900);
+    NTP.setNTPTimeout (1000);
+    NTP.begin (ntp_server, 1, true);
+
 	// Init FastLED
 	FastLED.addLeds<NEOPIXEL, pinLeds>(leds, ledRingSize);
 	FastLED.setTemperature(Halogen);
     FastLED.show();
 
-	// Connect to the RTC
-    Wire.begin();
-    rtc.begin();
-
 	// Set button pin
-    pinMode(pinButton, INPUT);
+    pinMode(pinButton, INPUT_PULLUP);
 
 	// Read saved config from EEPROM
     colorScheme = EEPROM.read(eepromAddrColorScheme);
@@ -52,10 +75,13 @@ void setup() {
     if (digitalRead(pinButton) == LOW) {
         for (int i = 0; i < ledRingSize; i++) leds[i] = white;
         FastLED.show();
-        delay(60000);
+        delay(10000);
     }
 }
 
+static int i = 0;
+static int last = 0;
+
 void loop() {
 	uint32_t currentTime = millis();
 	if (currentTime - lastLoopTime > runLoopIntervalMs) {
@@ -94,8 +120,7 @@ void loop() {
 		FastLED.setBrightness(currentBrightness);
 
 		// Get time and calculate milliseconds value that is synced with the RTC's second count
-		now = rtc.now();
+		int currentSeconds = second(now());
-		int currentSeconds = now.second();
 		if (currentSeconds != lastSecondsValue) {
 			lastSecondsValue = currentSeconds;
 			milliseconds = 0;
@@ -107,6 +132,9 @@ void loop() {
 		// Show clock
 		clearLeds();
 	    showClock();
+
+		// Check/Renew DHCP
+		Ethernet.maintain ();
 	}
 }
 
@@ -131,18 +159,17 @@ void showClock() {
 // Print debugging info over serial
 void printDebugMessage() {
     Serial.print("Current date/time: ");
-    DateTime now = rtc.now();
+    Serial.print(year(now()), DEC);
-    Serial.print(now.year(), DEC);
     Serial.print("/");
-    Serial.print(now.month(), DEC);
+    Serial.print(month(now()), DEC);
     Serial.print("/");
-    Serial.print(now.day(), DEC);
+    Serial.print(day(now()), DEC);
     Serial.print(" ");
-    Serial.print(now.hour(), DEC);
+    Serial.print(hour(now()), DEC);
     Serial.print(":");
-    Serial.print(now.minute(), DEC);
+    Serial.print(minute(now()), DEC);
     Serial.print(":");
-    Serial.print(now.second(), DEC);
+    Serial.print(second(now()), DEC);
     Serial.println();
     Serial.print("Display mode: ");
     Serial.println(clockMode);
@@ -160,7 +187,7 @@ void drawRingClock() {
     float s = secondPosition();
 
     if (m > h) {
-        for (int i = 0; i < m; i++) setLed(i, minuteColor(), BlendModeOver, 1.0);
+        for (int i = 0; i < m; i++) setLed(i, minuteColor(), BlendModeOver, 1.0); 
         for (int i = 0; i < h; i++) setLed(i, hourColor(), BlendModeOver, 1.0);
     } else {
         for (int i = 0; i < h; i++) setLed(i, hourColor(), BlendModeOver, 1.0);
@@ -223,35 +250,40 @@ void drawDotClockGlow() {
 
 // Get floating point hour representation
 float floatHour() {
-	return (float)now.hour() + mapFloat(now.minute() + mapFloat(now.second(), 0.0, 59.0, 0.0, 1.0), 0.0, 59.0, 0.0, 1.0);
+	return (float)hour(now()) + mapFloat(minute(now()) + mapFloat(second(now()), 0.0, 59.0, 0.0, 1.0), 0.0, 59.0, 0.0, 1.0);
 }
 
 // Get positions mapped to ring size
 float hourPosition() {
 	if (twelveHour) {
-		int hour;
+		int hourt;
-		if (now.hour() > 12) hour = (now.hour() - 12) * (ledRingSize / 12);
+
-	    else hour = now.hour() * (ledRingSize / 12);
+		if (hour(now()) > 12) hourt = (hour(now()) - 12) * (ledRingSize / 12);
-		return hour + mapFloat(now.minute(), 0.0, 59.0, 0.0, (ledRingSize / 12.0) - 1.0);
+	    else hourt = hour(now()) * (ledRingSize / 12);
+		return hourt + mapFloat(minute(now()) + 0.001, 0.0, 59.0, 0.0, (ledRingSize / 12.0) - 1.0);
 	} else {
-		int hour = now.hour() * (ledRingSize / 24);
+		int hourt = hour(now()) * (ledRingSize / 24);
-		return hour + mapFloat(now.minute(), 0, 59, 0, (ledRingSize / 24.0) - 1.0);
+		return hourt + mapFloat(minute(now()) + 0.001, 0, 59, 0, (ledRingSize / 24.0) - 1.0);
 	}
 }
 
 float minutePosition() {
-	return mapFloat((float)now.minute() + ((1.0 / 60.0) * (float)now.second()), 0.0, 59.0, 0.0, (float)ledRingSize);
+	return mapFloat(
+		(float)minute(now()) + ((0.001 + 1.0 / 60.0) * (float)second(now())), 0.0, 59.0, 0.0, (float)ledRingSize
+		);
 }
 
 float secondPosition() {
-	return mapFloat(now.second() + (0.001 * milliseconds), 0.0, 60.0, 0.0, (float)ledRingSize);
+	return mapFloat(
+		second(now()) + (0.001 * milliseconds), 0.0, 60.0, 0.0, (float)ledRingSize
+		);
 }
 
 // Get colors
 CRGB hourColor() {
 	if (colorScheme < colorSchemeCount) return colorSchemes[colorScheme][0];
 	else if (colorScheme == colorSchemeCount + 0) {
-		return CHSV(map(now.hour(), 0, 24, 0, 255), 255, 255);
+		return CHSV(map(hour(now()), 0, 24, 0, 255), 255, 255);
 	} else if (colorScheme == colorSchemeCount + 1) {
 	    return CHSV((uint8_t)mapFloat(fmod(20.0 - floatHour(), 24.0), 0.0, 24.0, 0.0, 255.0), 255, 255);
 	}
@@ -260,7 +292,7 @@ CRGB hourColor() {
 CRGB minuteColor() {
 	if (colorScheme < colorSchemeCount) return colorSchemes[colorScheme][1];
 	else if (colorScheme == colorSchemeCount + 0) {
-		return CHSV(map(now.minute(), 0, 59, 0, 255), 255, 255);
+		return CHSV(map(minute(now()), 0, 59, 0, 255), 255, 255);
 	} else if (colorScheme == colorSchemeCount + 1) {
 		return CHSV((uint8_t)mapFloat(fmod(20.0 - floatHour(), 24.0), 0.0, 24.0, 0.0, 255.0), 255, 255);
 	}
@@ -269,7 +301,7 @@ CRGB minuteColor() {
 CRGB secondColor() {
 	if (colorScheme < colorSchemeCount) return colorSchemes[colorScheme][2];
 	else if (colorScheme == colorSchemeCount + 0) {
-		return CHSV(map(now.second(), 0, 59, 0, 255), 255, 255);
+		return CHSV(map(second(now()), 0, 59, 0, 255), 255, 255);
 	} else if (colorScheme == colorSchemeCount + 1) {
 		return CHSV((uint8_t)mapFloat(fmod(20.0 - floatHour(), 24.0), 0.0, 24.0, 0.0, 255.0), 255, 255);
 	}