142 lines
4.0 KiB
C++
142 lines
4.0 KiB
C++
/*
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* 7 Segment 4 Digits clock with digit point separator
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*
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* It uses display module with common anode and DS1307
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* RTC module to enhance time keeping ability of
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* Atmega 328p based Arduino nano microcontroller and
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* 2 buttons for adjusting time.
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*/
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/* This software distributed under BSD 2 Clause License
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Copyright (c) Sergei Fedosoff, All rights reserved.
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Redistribution and use in source and binary forms, with or without modification,
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are permitted provided that the following conditions are met:
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Redistributions of source code must retain the above copyright notice, this list
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of conditions and the following disclaimer. Redistributions in binary form must
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reproduce the above copyright notice, this list of conditions and the following
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disclaimer in the documentation and/or other materials provided with the
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distribution. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
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CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
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PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
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CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
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OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
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IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
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OF SUCH DAMAGE.
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*/
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#include <SevSeg.h>
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#include <Wire.h>
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#include <TimeLib.h>
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// DS1307 lib by FrankieChu for Seeed RTC module
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#include <DS1307.h>
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DS1307 clock;
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SevSeg Display;
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bool dot = true;
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float number;
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unsigned long currentMillis;
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unsigned long previousMillis = 0;
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const long interval = 500;
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const int hrs_btn = A0;
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const int min_btn = A1;
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void setup()
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{
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// setup display
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byte hardwareConfig = COMMON_ANODE;
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byte numDigits = 4;
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byte digitPins[] = {9, 10, 11, 12};
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byte segmentPins[] = {2, 3, 4, 5, 6, 7, 8, 13};
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bool resistorsOnSegments = true; // 8 resistors, 330 Ohms each
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bool updateWithDelays = false; // Default. Recommended
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bool leadingZeros = false;
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Display.begin(hardwareConfig, numDigits, digitPins, segmentPins,
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resistorsOnSegments, updateWithDelays, leadingZeros);
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Display.setBrightness(90);
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// setup clock
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clock.begin();
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// if rtc returns incorrect time, reset it to some default value
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clock.getTime();
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if (( clock.hour > 23 ) || (clock.minute > 59))
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{
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clock.fillByYMD(2019,2,23); // 23 Feb 2013
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clock.fillByHMS(15,52,30); // 15:52 30"
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clock.fillDayOfWeek(SAT); // Saturday
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clock.setTime(); // put date to rtc
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}
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// setup control buttons
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pinMode(hrs_btn, INPUT_PULLUP);
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pinMode(min_btn, INPUT_PULLUP);
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}
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void loop()
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{
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unsigned long currentMillis = millis();
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uint8_t minutes;
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uint8_t hours;
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if (currentMillis - previousMillis >= interval)
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{
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previousMillis = currentMillis;
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if (dot == false)
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{
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dot = true;
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if (digitalRead(hrs_btn) == LOW)
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{
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clock.getTime();
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hours = clock.hour + 1;
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(hours > 23)? hours = 0: hours;
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clock.fillByHMS(hours, clock.minute, 0);
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clock.setTime();
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}
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if (digitalRead(min_btn) == LOW)
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{
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clock.getTime();
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minutes = clock.minute + 1;
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(minutes > 59)? minutes = 0: minutes;
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clock.fillByHMS(clock.hour, minutes, 0);
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clock.setTime();
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}
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}
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else
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{
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dot = false;
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}
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}
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clock.getTime();
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// make blinking dot
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if (dot == true) {
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number = clock.hour * 100 + clock.minute;
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number = number / 100;
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Display.setNumber(number, 2);
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} else {
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number = clock.hour * 100 + clock.minute;
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Display.setNumber(number);
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}
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Display.refreshDisplay();
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}
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/* vim: set filetype=cpp: */
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