Use RealTimeClockDS1307 library

from https://github.com/davidhbrown/RealTimeClockDS1307

1 files changed, 60 insertions, 60 deletions

diff --git a/ds1307/arduino_sketch/fuzzy_alarm_clock_ds1307.pde b/ds1307/arduino_sketch/fuzzy_alarm_clock_ds1307.pde
index fd0682c..53b2abe 100644
--- a/ds1307/arduino_sketch/fuzzy_alarm_clock_ds1307.pde
+++ b/ds1307/arduino_sketch/fuzzy_alarm_clock_ds1307.pde
@@ -1,5 +1,7 @@
 #include <Wire.h>
 
+#include <RealTimeClockDS1307.h>
+
 // minutes of "dawn" before alarm
 #define TIN 30
 // "dawn" + "daylight"
@@ -14,49 +16,33 @@
 #define RPIN 3
 #define YPIN 5
 #define BPIN 6
-#define DS1307_ADDRESS 0x68
 
 int st = 0; // alarm status (minutes from alarm - TIN)
-char alarms[NALARMS][5];
+char alarms[NALARMS][5]; // alarm settings
 char cmin; // current minute
 int a = -1; // current alarm
 
 void setup () {
     Serial.begin(9600);
     Wire.begin();
-    
 
     pinMode(RPIN,OUTPUT);
     pinMode(YPIN,OUTPUT);
     pinMode(BPIN,OUTPUT);
 
     digitalWrite(RPIN,255);
-    digitalWrite(YPIN,0);
+    digitalWrite(YPIN,255);
     digitalWrite(BPIN,0);
+   
+    // DEBUG: we want to read the setup messages
     
-    // if the RTC is already running read alarms and status
-    Wire.beginTransmission(DS1307_ADDRESS);
-    Wire.send(0);
-    Wire.endTransmission();
-
-    Wire.requestFrom(DS1307_ADDRESS, 1);
-    char running = Wire.receive();
-    running = !(running>>7);
-
-    if ( running ) {
-        Wire.requestFrom(DS1307_ADDRESS, 12 + NALARMS * 5);
-        for (int i = 0; i < 8 ; i ++ ) {
-            Wire.receive();
-        }
-        st = Wire.receive();
-        a = Wire.receive();
-        cmin = Wire.receive();
-        for ( int i = 0; i < NALARMS ; i ++ ) {
-            for ( int j = 0; j < 5 ; j ++ ) {
-                alarms[i][j] = Wire.receive();
-            }
-        }
-    } else {
+    delay(5000);
+    digitalWrite(YPIN,0);
+
+    // if the RTC is already running read alarms and status, 
+    // otherwise set everything to the default
+    if ( RTC.readData(0x00) >> 7 ) {
+        Serial.println("Setup the clock");
         for ( int i = 0 ; i < NALARMS ; i ++ ) {
             for ( int j = 0; j < 5 ; j ++ ) {
                 alarms[i][j] = 0;
@@ -66,7 +52,19 @@ void setup () {
         a = -1;
         // DEBUG: we don't want to set the time until we receive 
         // it from serial, but serial is not implemented yet
-        set_time(11,9,2,5,0,0,0);
+        alarms[0] = {16,0,0,13,40};
+        set_time(11,9,2,5,13,39,30);
+    } else {
+        st = RTC.readData(0x08);
+        a = RTC.readData(0x09);
+        cmin = RTC.readData(0x0a);
+        // FIXME: we want to update st to the time passed 
+        // since the data was saved
+        for ( int i = 0; i < NALARMS ; i ++ ) {
+            for ( int j = 0; j < 5 ; j ++ ) {
+                alarms[i][j] = RTC.readData(0x0b + i*5 + j);
+            }
+        }
     }
     
 }
@@ -77,6 +75,7 @@ void loop () {
   
   // read time, check alarms
   check_time();
+  //DEBUG
   Serial.println(st);
   
   // act on status: LEDs and buzzer
@@ -85,39 +84,41 @@ void loop () {
   }
   
   // wait about till the next second
-  
+
   delay(1000);
   
 }
 
 // Set the current time
 void set_time(int y,int m,int d, int w, int hh, int mm, int ss) {
-    Wire.beginTransmission(DS1307_ADDRESS);
-    Wire.send(0);
-    Wire.send(bin2bcd(ss));
-    Wire.send(bin2bcd(mm));
-    Wire.send(bin2bcd(hh));
-    Wire.send(w);
-    Wire.send(bin2bcd(d));
-    Wire.send(bin2bcd(m));
-    Wire.send(bin2bcd(y));
-    Wire.send(0);
-    Wire.endTransmission();
+    RTC.setYear(y);
+    RTC.setMonth(m);
+    RTC.setDate(m);
+    RTC.setDayOfWeek(w);
+    RTC.setHours(hh);
+    RTC.setMinutes(mm);
+    RTC.setSeconds(ss);
+    RTC.switchTo24h();
+    RTC.setClock();
 }
 
 void check_time() {
-    Wire.beginTransmission(DS1307_ADDRESS);
-    Wire.send(0);
-    Wire.endTransmission();
-
-    Wire.requestFrom(DS1307_ADDRESS, 6);
-    Wire.receive();
-    int mm = bcd2bin(Wire.receive());
-    int hour = bcd2bin(Wire.receive());
-    int wday = Wire.receive();
-    int day = bcd2bin(Wire.receive());
-    int month = bcd2bin(Wire.receive());
-
+    RTC.readClock();
+
+    int mm = RTC.getMinutes();
+    int hour = RTC.getHours();
+    int wday = RTC.getDayOfWeek();
+    int day = RTC.getDate();
+    int month = RTC.getMonth();
+
+    // DEBUG
+    Serial.print("Time: ");
+    Serial.print(hour,DEC);
+    Serial.print(":");
+    Serial.print(mm,DEC);
+    Serial.print(":");
+    Serial.println(RTC.getSeconds());
+    
     if ( a < 0 ) {
         for ( int i = 0; i < NALARMS ; i ++ ) {
             // check alarm i
@@ -127,21 +128,24 @@ void check_time() {
                 if ( hour == alarms[i][3] && mm == alarms[i][4]) {
                     // this is alarm hour!
                     a = i;
-                    st = 0;
+                    st = 1;
                     cmin = mm;
                     if ( ( alarms[i][0] & 128 ) == 0 ) {
                         // this alarm won't be repeated
                         alarms[i] = { 0,0,0,0,0 };
+                        for ( int j = 0; j < 5 ; j++ ) {
+                            RTC.writeData(0x0b + i*5 + j,0);
+                        }
                     }
                     break;
                 }
             } 
         }
     } else {
-        if ( cmin < mm ) {
+        if ( cmin != mm ) {
             cmin = mm;
             st++;
-        }
+        } 
     }
 
 }
@@ -156,7 +160,7 @@ void set_leds() {
       analogWrite(RPIN,0);
       analogWrite(YPIN,255);
       analogWrite(BPIN,0);
-  }else if (st >= TDAY) {
+  }else if (st >= TDAY && st < TOUT) {
       analogWrite(RPIN,0);
       analogWrite(YPIN,0);
       analogWrite(BPIN,255);
@@ -170,8 +174,4 @@ void set_leds() {
   }
 }
 
-// BCD helper functions from adafruit-RTClib
-static uint8_t bcd2bin (uint8_t val) { return val - 6 * (val >> 4); }
-static uint8_t bin2bcd (uint8_t val) { return val + 6 * (val / 10); }
-
 // vim: set filetype=c: