v0.5
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LICENSE
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LICENSE
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This program is free software; you can redistribute it and/or modify it under the terms of the Do What Thou Wilt License.
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This source code is released under the DWTW license.
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Boundless Public License
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DO WHAT THOU WILT
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TO PUBLIC LICENSE
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This program is free software; you can redistribute it and/or modify it under the terms of the Do What Thou Wilt License.
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Version 2.55
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Boundless Public License
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DO WHAT THOU WILT
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TO PUBLIC LICENSE
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Everyone is permitted to copy and distribute verbatim or modified copies of this license document, and changing it in full or in part is allowed without any restrictions.
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Version 2.55
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TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
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Everyone is permitted to copy and distribute verbatim or modified copies of this license document, and changing it in full or in part is allowed without any restrictions.
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0. Do what thou wilt shall be the whole of the Law.
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TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
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DWTWL – a license with a single requirement: DO WHAT THOU WILT
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0. Do what thou wilt shall be the whole of the Law.
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The license provides more freedom than any other one (such as GPL or BSD) and does not require saving the license text on copying.
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DWTWL – a license with a single requirement: DO WHAT THOU WILT
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DWTWL – an accomplished and eligible license for free text, code and any other symbols (including the software, documentation and artwork).
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The license provides more freedom than any other one (such as GPL or BSD) and does not require saving the license text on copying.
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The license does not contain a "no warranty" clause. DWTWL can be used in countries that do not legally acknowledge the transition to public domain.
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DWTWL – an accomplished and eligible license for free text, code and any other symbols (including the software, documentation and artwork).
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Summary:
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The license does not contain a "no warranty" clause. DWTWL can be used in countries that do not legally acknowledge the transition to public domain.
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An author-creator gives their source code to the world for free, without becoming distracted by worldly thinking regarding how and why the others will use it.
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Summary:
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An author-creator gives their source code to the world for free, without becoming distracted by worldly thinking regarding how and why the others will use it.
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12
README.md
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README.md
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# dclock
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# Erisian digital clock
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Digital erisian clock
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By default, it shows the erisian time (hours:minutes). Pressing the button temporary changes the mode to: erisian time (minutes:seconds), date (season and day), day of week, yold.
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Used hardware modules: DS1307 Real Time Clock and TM1637 Digit Display
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Check timezoneOffset variable for your local timezone.
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https://discordia.fandom.com/wiki/Erisian_Time
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// Erisian digital clock - v0.5
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#include <Arduino.h>
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#include <TimeLib.h>
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#include <Thread.h>
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#include <DS1307RTC.h>
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#include <SevenSegmentExtended.h> // DisplayLib // Extended TM1637 library https://github.com/bremme/arduino-tm1637
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const byte PIN_CLK = 2; // DisplaySetting // CLK pin
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const byte PIN_DIO = 3; // DisplaySetting // DIO pin
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const byte buttonPin = 4; // ButtonSetting // Button pin (a 10K resistor is necessary)
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SevenSegmentExtended display(PIN_CLK, PIN_DIO); // DisplaySetting
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Thread mainThread = Thread(); // mainThread
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long buttonPressed = 0; // Button press time counter
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long previousButtonMillis = 0; // Time of last button press
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byte viewMode = 0; // View mode after pressing button
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int buttonInterval = 21600; // Interval for showing viewMode after pressing button
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int buttonLongPress = 1728; // Long button press interval
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int mainCheck = 108; // The main interval is an eighth of a decimal second
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byte octavo = 0; // Eight-count counter
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byte colon = 0; // Colon status
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float erisiansec; // Erisian second
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// Custom settings:
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int brightnessPercent = 32; // Display brightness percentage value
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long timezoneOffset = (-28800); // Erisian timezoneOffset. Formula for calculating: ((-5 christian chours) - (GMT hours))
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// Examples:
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// GMT+3: ( (-5)-(+3) )*60*60 = -28800
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// GMT-0: ( (-5)-(0) )*60*60 = -18000
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// GMT-3: ( (-5)-(-3) )*60*60 = -7200
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// GMT-5: ( (-5)-(-5) )*60*60 = 0
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// GMT-7: ( (-5)-(-7) )*60*60 = 7200
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// The beginning of Discordian day (0 hours, 0 minutes, 0 seconds) coincides
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// with the beginning of Christian day on Easter Island on winter time (GMT-5).
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// Details: https://discordia.fandom.com/wiki/Erisian_Time
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void setup() {
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Serial.begin(9600); // Initializes the Serial connection @ 9600 baud for debug
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display.begin(); // Display setting, initializes the display
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display.setBacklight(brightnessPercent); // Display brightness setting
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while (!Serial); // Wait until Arduino Serial Monitor opens
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setSyncProvider(RTC.get); // The function to get the time from the RTC
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if(timeStatus()!= timeSet) { // Checking the time setting
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Serial.println("Unable to sync with the RTC");
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display.print("_time_not_set_"); // Shows warning "time not set"
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} else {
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Serial.println("RTC has set the system time");
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display.print("HAIL_EriS"); // Shows display initialization
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}
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pinMode(buttonPin, INPUT); // Button setting
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// Main thread thread initialization:
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mainThread.onRun(mainLoop);
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mainThread.setInterval(mainCheck);
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}
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void loop() {
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// Main thread:
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if (mainThread.shouldRun())
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mainThread.run();
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// Time check:
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if (timeStatus() != timeSet)
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display.print("SEt tiMe");
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}
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void mainLoop() {
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// Counting an eighth part of a decimal second:
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octavo++;
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if (octavo == 8) octavo = 0;
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// Update display every decimal second:
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if (octavo == 0) {
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if (viewMode == 0) {
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dtime();
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} else if (viewMode == 1) {
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dtime();
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} else if (viewMode == 2) {
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ddate();
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} else if (viewMode == 3) {
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ddate();
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} else if (viewMode == 4) {
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dyold();
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}
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}
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// Resets the view mode to the default state after buttonInterval expires:
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if (millis() - previousButtonMillis > buttonInterval) viewMode = 0;
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// Check the button state:
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if (digitalRead(buttonPin) == HIGH) {
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buttonPressed = buttonPressed + mainCheck;
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if (buttonPressed > buttonLongPress) {
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buttonPressed = 0;
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longPress();
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}
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} else {
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if (buttonPressed > 0) {
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if (viewMode < 4) viewMode += 1;
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else viewMode = 0;
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buttonPressed = 0;
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previousButtonMillis = millis();
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}
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}
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}
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void dtime() {
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// Calculating discordian time:
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uint32_t timec;
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long christiansec;
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float dtimeconv;
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timec = now() + timezoneOffset;
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christiansec = timec % 86400;
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dtimeconv = float(86400) / float(christiansec);
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erisiansec = float(100000) / dtimeconv;
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if (viewMode == 0) dtimeHM();
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else if (viewMode == 1) dtimeMS();
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else dtimeHM();
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colon = !colon;
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display.setColonOn(colon);
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}
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void dtimeHM() {
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// Displaying of erisian hours and minutes:
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int dhour;
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dhour = int(erisiansec / float(10000));
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int dminute;
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dminute = (long(erisiansec) % 10000) / 100;
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byte rawData[4];
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rawData[0] = display.encode(' ');
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rawData[1] = display.encode(dhour);
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rawData[2] = display.encode(dminute / 10);
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rawData[3] = display.encode(dminute % 10);
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display.printRaw(rawData);
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}
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void dtimeMS() {
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// Displaying of erisian minutes and seconds:
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int dminute;
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dminute = (long(erisiansec) % 10000) / 100;
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int dsecond;
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dsecond = (long(erisiansec) % 100);
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byte rawData[4];
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rawData[0] = display.encode(dminute / 10);
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rawData[1] = display.encode(dminute % 10);
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rawData[2] = display.encode(dsecond / 10);
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rawData[3] = display.encode(dsecond % 10);
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display.printRaw(rawData);
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}
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void ddate() {
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// Calculating and displaying discordian date:
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uint32_t timec;
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timec = now() + timezoneOffset;
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byte dseason;
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short dday;
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short daynumber;
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short y = year(timec);
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short m = month(timec);
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short d = day(timec);
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// The algorithm for calculating the day's number is from here: https://forum.arduino.cc/index.php?topic=44476.0
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int days[]={0,31,59,90,120,151,181,212,243,273,304,334}; // Number of days at the beginning of the month in a not leap year.
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String outputstr;
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display.setColonOn(0);
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if (viewMode == 2) {
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if (m == 1 || m == 2) {
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daynumber = days[(m - 1)] + d; // for any type of year, it calculate the number of days for January or February
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dday = daynumber;
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dseason = 0;
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} // Now, try to calculate for the other months
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else if ((y % 4 == 0 && y % 100 != 0) || y % 400 == 0) { //those are the conditions to have a leap year
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daynumber = days[(m - 1)] + d + 1; // if leap year, calculate in the same way but increasing one day
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dday = (daynumber % 73) - 1;
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dseason = (daynumber - 1) / 73;
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}
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else { // if not a leap year, calculate in the normal way, such as January or February
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daynumber = days[(m - 1)] + d;
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dday = daynumber % 73;
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dseason = daynumber / 73;
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}
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if ( m == 2 && d == 29 ) outputstr = " tib";
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else {
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if (dseason == 0) outputstr = "ch";
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else if (dseason == 1) outputstr = "di";
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else if (dseason == 2) outputstr = "co";
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else if (dseason == 3) outputstr = "bu";
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else outputstr = "af";
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outputstr += (dday / 10);
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outputstr += (dday % 10);
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}
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display.print(outputstr);
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} else {
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// Calculating and displaying discordian weekday:
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byte dweekday;
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daynumber = days[(m - 1)] + d;
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if (daynumber < 6) dweekday = daynumber;
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else dweekday = daynumber % 5;
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if ( m == 2 && d == 29 ) outputstr = " tib";
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else {
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if (dweekday == 1) outputstr = "swee";
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else if (dweekday == 2) outputstr = "boom";
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else if (dweekday == 3) outputstr = "pung";
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else if (dweekday == 4) outputstr = "pric";
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else outputstr = "sett";
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}
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display.print(outputstr);
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}
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}
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void dyold() {
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// Calculating and displaying discordian yold:
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uint32_t timec;
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timec = now() + timezoneOffset;
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int yold;
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yold = year(timec) + 1166;
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display.setColonOn(0);
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display.print(yold);
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}
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void longPress() {
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// Long button press function
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display.setColonOn(0);
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display.print("HAIL_EriS");
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viewMode = 0;
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}
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