I am making the hidden digital shelf clock from DIY Machines, I have successfully done this project, but DST breaks the clock, making me have to take the battery out of the RTC and removing all battery, waiting till midnight and then turning everything back on.
Is there a way to add 2 buttons to this easily? Or code that will change based on the timezone?
Here is the code:
/*
* 3D printed smart shelving with a giant hidden digital clock in the front edges of the shelves - DIY Machines
==========
More info and build instructions: https://www.youtube.com/watch?v=8E0SeycTzHw
3D printed parts can be downloaded from here: https://www.thingiverse.com/thing:4207524
You will need to install the Adafruit Neopixel library which can be found in the library manager.
This project also uses the handy DS3231 Simple library:- https://github.com/sleemanj/DS3231_Simple Please follow the instruction on installing this provided on the libraries page
Before you install this code you need to set the time on your DS3231. Once you have connected it as shown in this project and have installed the DS3231_Simple library (see above) you
to go to 'File' >> 'Examples' >> 'DS3231_Simple' >> 'Z1_TimeAndDate' >> 'SetDateTime' and follow the instructions in the example to set the date and time on your RTC
==========
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*/
#include <Adafruit_NeoPixel.h>
#ifdef __AVR__
#endif
#include <DS3231_Simple.h>
DS3231_Simple Clock;
// Create a variable to hold the time data
DateTime MyDateAndTime;
// Which pin on the Arduino is connected to the NeoPixels?
#define LEDCLOCK_PIN 6
#define LEDDOWNLIGHT_PIN 5
// How many NeoPixels are attached to the Arduino?
#define LEDCLOCK_COUNT 216
#define LEDDOWNLIGHT_COUNT 12
//(red * 65536) + (green * 256) + blue ->for 32-bit merged colour value so 16777215 equals white
// or 3 hex byte 00 -> ff for RGB eg 0x123456 for red=12(hex) green=34(hex), and green=56(hex)
// this hex method is the same as html colour codes just with "0x" instead of "#" in front
uint32_t clockMinuteColour = 0x800000; // pure red
uint32_t clockHourColour = 0x008000; // pure green
int clockFaceBrightness = 0;
// Declare our NeoPixel objects:
Adafruit_NeoPixel stripClock(LEDCLOCK_COUNT, LEDCLOCK_PIN, NEO_GRB + NEO_KHZ800);
Adafruit_NeoPixel stripDownlighter(LEDDOWNLIGHT_COUNT, LEDDOWNLIGHT_PIN, NEO_GRB + NEO_KHZ800);
// Argument 1 = Number of pixels in NeoPixel strip
// Argument 2 = Arduino pin number (most are valid)
// Argument 3 = Pixel type flags, add together as needed:
// NEO_KHZ800 800 KHz bitstream (most NeoPixel products w/WS2812 LEDs)
// NEO_KHZ400 400 KHz (classic 'v1' (not v2) FLORA pixels, WS2811 drivers)
// NEO_GRB Pixels are wired for GRB bitstream (most NeoPixel products)
// NEO_RGB Pixels are wired for RGB bitstream (v1 FLORA pixels, not v2)
// NEO_RGBW Pixels are wired for RGBW bitstream (NeoPixel RGBW products)
//Smoothing of the readings from the light sensor so it is not too twitchy
const int numReadings = 12;
int readings[numReadings]; // the readings from the analog input
int readIndex = 0; // the index of the current reading
long total = 0; // the running total
long average = 0; // the average
void setup() {
Serial.begin(9600);
Clock.begin();
stripClock.begin(); // INITIALIZE NeoPixel stripClock object (REQUIRED)
stripClock.show(); // Turn OFF all pixels ASAP
stripClock.setBrightness(100); // Set inital BRIGHTNESS (max = 255)
stripDownlighter.begin(); // INITIALIZE NeoPixel stripClock object (REQUIRED)
stripDownlighter.show(); // Turn OFF all pixels ASAP
stripDownlighter.setBrightness(50); // Set BRIGHTNESS (max = 255)
//smoothing
// initialize all the readings to 0:
for (int thisReading = 0; thisReading < numReadings; thisReading++) {
readings[thisReading] = 0;
}
}
void loop() {
//read the time
readTheTime();
//display the time on the LEDs
displayTheTime();
//Record a reading from the light sensor and add it to the array
readings[readIndex] = analogRead(A0); //get an average light level from previouse set of samples
Serial.print("Light sensor value added to array = ");
Serial.println(readings[readIndex]);
readIndex = readIndex + 1; // advance to the next position in the array:
// if we're at the end of the array move the index back around...
if (readIndex >= numReadings) {
// ...wrap around to the beginning:
readIndex = 0;
}
//now work out the sum of all the values in the array
int sumBrightness = 0;
for (int i=0; i < numReadings; i++)
{
sumBrightness += readings[i];
}
Serial.print("Sum of the brightness array = ");
Serial.println(sumBrightness);
// and calculate the average:
int lightSensorValue = sumBrightness / numReadings;
Serial.print("Average light sensor value = ");
Serial.println(lightSensorValue);
//set the brightness based on ambiant light levels
clockFaceBrightness = map(lightSensorValue,50, 1000, 200, 1);
stripClock.setBrightness(clockFaceBrightness); // Set brightness value of the LEDs
Serial.print("Mapped brightness value = ");
Serial.println(clockFaceBrightness);
stripClock.show();
//(red * 65536) + (green * 256) + blue ->for 32-bit merged colour value so 16777215 equals white
stripDownlighter.fill(16777215, 0, LEDDOWNLIGHT_COUNT);
stripDownlighter.show();
delay(5000); //this 5 second delay to slow things down during testing
}
void readTheTime(){
// Ask the clock for the data.
MyDateAndTime = Clock.read();
// And use it
Serial.println("");
Serial.print("Time is: "); Serial.print(MyDateAndTime.Hour);
Serial.print(":"); Serial.print(MyDateAndTime.Minute);
Serial.print(":"); Serial.println(MyDateAndTime.Second);
Serial.print("Date is: 20"); Serial.print(MyDateAndTime.Year);
Serial.print(":"); Serial.print(MyDateAndTime.Month);
Serial.print(":"); Serial.println(MyDateAndTime.Day);
}
void displayTheTime(){
stripClock.clear(); //clear the clock face
int firstMinuteDigit = MyDateAndTime.Minute % 10; //work out the value of the first digit and then display it
displayNumber(firstMinuteDigit, 0, clockMinuteColour);
int secondMinuteDigit = floor(MyDateAndTime.Minute / 10); //work out the value for the second digit and then display it
displayNumber(secondMinuteDigit, 63, clockMinuteColour);
int firstHourDigit = MyDateAndTime.Hour; //work out the value for the third digit and then display it
if (firstHourDigit > 12){
firstHourDigit = firstHourDigit - 12;
}
// Comment out the following three lines if you want midnight to be shown as 12:00 instead of 0:00
if (firstHourDigit == 0){
firstHourDigit = 12;
}
firstHourDigit = firstHourDigit % 10;
displayNumber(firstHourDigit, 126, clockHourColour);
int secondHourDigit = MyDateAndTime.Hour; //work out the value for the fourth digit and then display it
// Comment out the following three lines if you want midnight to be shwon as 12:00 instead of 0:00
// if (secondHourDigit == 0){
// secondHourDigit = 12;
// }
if (secondHourDigit > 12){
secondHourDigit = secondHourDigit - 12;
}
if (secondHourDigit > 9){
stripClock.fill(clockHourColour,189, 18);
}
}
void displayNumber(int digitToDisplay, int offsetBy, uint32_t colourToUse){
switch (digitToDisplay){
case 0:
digitZero(offsetBy,colourToUse);
break;
case 1:
digitOne(offsetBy,colourToUse);
break;
case 2:
digitTwo(offsetBy,colourToUse);
break;
case 3:
digitThree(offsetBy,colourToUse);
break;
case 4:
digitFour(offsetBy,colourToUse);
break;
case 5:
digitFive(offsetBy,colourToUse);
break;
case 6:
digitSix(offsetBy,colourToUse);
break;
case 7:
digitSeven(offsetBy,colourToUse);
break;
case 8:
digitEight(offsetBy,colourToUse);
break;
case 9:
digitNine(offsetBy,colourToUse);
break;
default:
break;
}
}
digits.ino
void digitZero(int offset, uint32_t colour){
stripClock.fill(colour, (0 + offset), 27);
stripClock.fill(colour, (36 + offset), 27);
}
void digitOne(int offset, uint32_t colour){
stripClock.fill(colour, (0 + offset), 9);
stripClock.fill(colour, (36 + offset), 9);
}
void digitTwo(int offset, uint32_t colour){
stripClock.fill(colour, (0 + offset), 18);
stripClock.fill(colour, (27 + offset), 9);
stripClock.fill(colour, (45 + offset), 18);
}
void digitThree(int offset, uint32_t colour){
stripClock.fill(colour, (0 + offset), 18);
stripClock.fill(colour, (27 + offset), 27);
}
void digitFour(int offset, uint32_t colour){
stripClock.fill(colour, (0 + offset), 9);
stripClock.fill(colour, (18 + offset), 27);
}
void digitFive(int offset, uint32_t colour){
stripClock.fill(colour, (9 + offset), 45);
}
void digitSix(int offset, uint32_t colour){
stripClock.fill(colour, (9 + offset), 54);
}
void digitSeven(int offset, uint32_t colour){
stripClock.fill(colour, (0 + offset), 18);
stripClock.fill(colour, (36 + offset), 9);
}
void digitEight(int offset, uint32_t colour){
stripClock.fill(colour, (0 + offset), 63);
}
void digitNine(int offset, uint32_t colour){
stripClock.fill(colour, (0 + offset), 45);
}
Wiring Diagram
