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96a0c33 May 8, 2018
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/*
* MIT License
*
* Copyright (c) 2018 Leon van den Beukel
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*
* Source:
* https://github.com/leonvandenbeukel/3D-7-Segment-Digital-Clock
*
* External libraries you need:
* Adafruit Sensor Library: https://github.com/adafruit/Adafruit_Sensor
* Adafruit RTCLib: https://github.com/adafruit/RTClib
* FastLED: https://github.com/FastLED/FastLED
* Timer Library: https://github.com/JChristensen/Timer
*/
#include <DHT.h>
#include <DHT_U.h>
#include <FastLED.h>
#include <Wire.h>
#include "RTClib.h"
#include <SoftwareSerial.h>
#include "Timer.h"
#define DHTPIN 12
#define DHTTYPE DHT11
DHT dht(DHTPIN, DHTTYPE);
#define NUM_LEDS 30
#define DATA_PIN 6
CRGB LEDs[NUM_LEDS];
SoftwareSerial BTserial(8, 9);
RTC_DS3231 rtc;
Timer t1;
Timer t2;
Timer t3;
String btBuffer;
CRGB colorCRGB = CRGB::Red; // Change this if you want another default color, for example CRGB::Blue
CHSV colorCHSV = CHSV(95, 255, 255); // Green
CRGB colorOFF = CRGB(20,20,20); // Color of the segments that are 'disabled'. You can also set it to CRGB::Black
volatile int colorMODE = 1; // 0=CRGB, 1=CHSV, 2=Constant Color Changing pattern
volatile int mode = 0; // 0=Clock, 1=Temperature, 2=Humidity, 3=Scoreboard, 4=Time counter
volatile int scoreLeft = 0;
volatile int scoreRight = 0;
volatile long timerValue = 0;
volatile int timerRunning = 0;
#define blinkDots 0 // Set this to 1 if you want the dots to blink in clock mode, set it to value 0 to disable
#define hourFormat 24 // Set this to 12 or to 24 hour format
#define temperatureMode 'C' // Set this to 'C' for Celcius or 'F' for Fahrenheit
void setup () {
// Initialize LED strip
FastLED.delay(3000);
// Check if you're LED strip is a RGB or GRB version (third parameter)
FastLED.addLeds<WS2812B, DATA_PIN, GRB>(LEDs, NUM_LEDS);
Serial.begin(9600);
while (!Serial) { /* Wait until serial is ready */ }
BTserial.begin(9600);
Serial.println("BTserial started at 9600");
dht.begin();
if (!rtc.begin()) {
Serial.println("Couldn't find RTC");
while (1);
}
if (rtc.lostPower()) {
Serial.println("RTC lost power, lets set the time!");
// following line sets the RTC to the date & time this sketch was compiled
rtc.adjust(DateTime(F(__DATE__), F(__TIME__)));
}
t1.every(1000 * 29, refreshDisplay);
t2.every(1000, refreshTimer);
t3.every(50, updateHue);
refreshDisplay();
}
void loop () {
t1.update();
t2.update();
t3.update();
if (BTserial.available())
{
char received = BTserial.read();
btBuffer += received;
if (received == '|')
{
processCommand();
btBuffer = "";
}
}
}
void updateHue() {
if (colorMODE != 2)
return;
colorCHSV.sat = 255;
colorCHSV.val = 255;
if (colorCHSV.hue >= 255){
colorCHSV.hue = 0;
} else {
colorCHSV.hue++;
}
refreshDisplay();
}
void refreshDisplay() {
switch (mode) {
case 0:
displayClock();
break;
case 1:
displayTemperature();
break;
case 2:
displayHumidity();
break;
case 3:
displayScoreboard();
break;
case 4:
// Time counter has it's own timer
break;
default:
break;
}
}
void refreshTimer() {
if (mode == 0 && blinkDots == 1) {
displayDots(3);
} else if (mode == 4 && timerRunning == 1 && timerValue < 6000) {
timerValue++;
int m1 = (timerValue / 60) / 10 ;
int m2 = (timerValue / 60) % 10 ;
int s1 = (timerValue % 60) / 10;
int s2 = (timerValue % 60) % 10;
displaySegments(0, s2);
displaySegments(7, s1);
displaySegments(16, m2);
displaySegments(23, m1);
displayDots(0);
FastLED.show();
}
}
void processCommand(){
if (btBuffer.startsWith("RGBD")) {
long R = getValue(btBuffer, ',', 1).toInt();
long G = getValue(btBuffer, ',', 2).toInt();
long B = getValue(btBuffer, ',', 3).toInt();
long D = getValue(btBuffer, ',', 4).toInt();
colorCRGB.red = R;
colorCRGB.green = G;
colorCRGB.blue = B;
colorMODE = 0;
if (D > 0) FastLED.setBrightness(D);
} else if (btBuffer.startsWith("HSVD")) {
long H = getValue(btBuffer, ',', 1).toInt();
long S = getValue(btBuffer, ',', 2).toInt();
long V = getValue(btBuffer, ',', 3).toInt();
long D = getValue(btBuffer, ',', 4).toInt();
colorCHSV.hue = H;
colorCHSV.sat = S;
colorCHSV.val = V;
colorMODE = 1;
if (D > 0) FastLED.setBrightness(D);
} else if (btBuffer.startsWith("RTC")) {
long y = getValue(btBuffer, ',', 1).toInt();
long m = getValue(btBuffer, ',', 2).toInt();
long d = getValue(btBuffer, ',', 3).toInt();
long h = getValue(btBuffer, ',', 4).toInt();
long mm = getValue(btBuffer, ',', 5).toInt();
long s = getValue(btBuffer, ',', 6).toInt();
rtc.adjust(DateTime(y, m, d, h, mm, s));
Serial.println("DateTime set");
} else if (btBuffer.startsWith("CLOCK")) {
mode = 0;
} else if (btBuffer.startsWith("TEMPERATURE")) {
mode = 1;
} else if (btBuffer.startsWith("HUMIDITY")) {
mode = 2;
} else if (btBuffer.startsWith("SCOREBOARD")) {
scoreLeft = getValue(btBuffer, ',', 1).toInt();
scoreRight = getValue(btBuffer, ',', 2).toInt();
mode = 3;
} else if (btBuffer.startsWith("STARTTIMER")) {
timerValue = 0;
timerRunning = 1;
mode = 4;
} else if (btBuffer.startsWith("STOPTIMER")) {
timerRunning = 0;
mode = 4;
} else if (btBuffer.startsWith("CHANGINGPATTERN")) {
colorMODE = 2;
}
refreshDisplay();
}
void displayClock() {
DateTime now = rtc.now();
int h = now.hour();
if (hourFormat == 12 && h > 12)
h = h - 12;
int hl = (h / 10) == 0 ? 13 : (h / 10);
int hr = h % 10;
int ml = now.minute() / 10;
int mr = now.minute() % 10;
displaySegments(0, mr);
displaySegments(7, ml);
displaySegments(16, hr);
displaySegments(23, hl);
displayDots(0);
FastLED.show();
}
void displayTemperature() {
float tmp = dht.readTemperature(temperatureMode == 'F' ? true : false);
if (isnan(tmp)) {
Serial.println("Failed to read from DHT sensor!");
} else {
int tmp1 = tmp / 10;
int tmp2 = ((int)tmp) % 10;
displaySegments(23, tmp1);
displaySegments(16, tmp2);
displaySegments(7, 10);
displaySegments(0, (temperatureMode == 'F' ? 14 : 11));
displayDots(1);
FastLED.show();
}
}
void displayHumidity() {
float hum = dht.readHumidity();
if (isnan(hum)) {
Serial.println("Failed to read from DHT sensor!");
} else {
int hum1 = hum / 10;
int hum2 = ((int)hum) % 10;
displaySegments(23, hum1);
displaySegments(16, hum2);
displaySegments(7, 10);
displaySegments(0, 12);
displayDots(1);
FastLED.show();
}
}
void displayScoreboard() {
int s1 = scoreLeft % 10;
int s2 = scoreLeft / 10;
int s3 = scoreRight % 10;
int s4 = scoreRight / 10;
displaySegments(0, s3);
displaySegments(7, s4);
displaySegments(16, s1);
displaySegments(23, s2);
displayDots(2);
FastLED.show();
}
void displayDots(int dotMode) {
// dotMode: 0=Both on, 1=Both Off, 2=Bottom On, 3=Blink
switch (dotMode) {
case 0:
LEDs[14] = colorMODE == 0 ? colorCRGB : colorCHSV;
LEDs[15] = colorMODE == 0 ? colorCRGB : colorCHSV;
break;
case 1:
LEDs[14] = colorOFF;
LEDs[15] = colorOFF;
break;
case 2:
LEDs[14] = colorOFF;
LEDs[15] = colorMODE == 0 ? colorCRGB : colorCHSV;
break;
case 3:
LEDs[14] = (LEDs[14] == colorOFF) ? (colorMODE == 0 ? colorCRGB : colorCHSV) : colorOFF;
LEDs[15] = (LEDs[15] == colorOFF) ? (colorMODE == 0 ? colorCRGB : colorCHSV) : colorOFF;
FastLED.show();
break;
default:
break;
}
}
void displaySegments(int startindex, int number) {
byte numbers[] = {
0b00111111, // 0
0b00000110, // 1
0b01011011, // 2
0b01001111, // 3
0b01100110, // 4
0b01101101, // 5
0b01111101, // 6
0b00000111, // 7
0b01111111, // 8
0b01101111, // 9
0b01100011, // º 10
0b00111001, // C(elcius) 11
0b01011100, // º lower 12
0b00000000, // Empty 13
0b01110001, // F(ahrenheit) 14
};
for (int i = 0; i < 7; i++) {
LEDs[i + startindex] = ((numbers[number] & 1 << i) == 1 << i) ? (colorMODE == 0 ? colorCRGB : colorCHSV) : colorOFF;
}
}
String getValue(String data, char separator, int index) {
int found = 0;
int strIndex[] = {0, -1};
int maxIndex = data.length()-1;
for(int i=0; i<=maxIndex && found<=index; i++){
if(data.charAt(i)==separator || i==maxIndex){
found++;
strIndex[0] = strIndex[1]+1;
strIndex[1] = (i == maxIndex) ? i+1 : i;
}
}
return found>index ? data.substring(strIndex[0], strIndex[1]) : "";
}