time/DCF77-Analyzer-Clock-V2.0
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UPDATE

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addes some useful options (I think…)
This commit is contained in:
Erik
2016-05-21 12:00:34 +02:00
parent b09b14ddbf
commit c4b613d88c
1 changed files with 252 additions and 91 deletions
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343
DCF77_Analyzer_Clock_1.7.ino → DCF77_Analyzer_Clock_1.72.ino
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@@ -36,6 +36,19 @@
May 2014 First version
March 2016 - big overhaul...
Version 1.72
- Option: Use a cheap Ebay PIR detector to shut off selectable display's when no activity is detected.
The switch off delay can be set by the user to prevent the display shutting of if a person
is not moving but the display should be on.
- Now the display Night shut-down can be disabled by making both values 'POWERSAVINGOFFTIME'
and 'POWERSAVINGONTIME' zero.
- Fixed temperature display not shutting off at powersave mode.
- errorCounter display did not reset every hour so that's fixed
Version 1.71
- User option to reset temperature min/max memory at midnight
Version 1.7:
- The resolution of the temperature display is improved: from 0.5 to 0.1 degrees Celsius
Because of the time the DS18B20 sensor needs to convert the temperature and to keep the code clean,
@@ -47,7 +60,9 @@
and only turns ON when all 3 parity bits are OK.
Version 1.6:
- Changed temperature function to only calculate once per minute. Got strange errors before the change.
- Changed temperature function to only calculate once per minute. Got strange errors before the change because
I used a delay of 100ms to give the DS18B20 sensor time to calculate the temperature. But the delay function is
a very bad idea in most c++ code so I finally got rid of it.
Version 1.5:
- Complete overhaul of the scanSignal function and the rest of the code! My first attempt worked but could be improved...
@@ -72,45 +87,53 @@
Short description:
Power On:
After power-on, first a LED test is performed. The LED's and displays lite up sequentially to keep the power consumption low.
Then the clock starts receiving DCF pulses and when a Minute Mark (2 seconds gap) is detected, the Minute Marker LED is lit
and the buffer counter is reset. The inner LED ring now will show the incoming DCF pulses which are also stored in the buffer.
At 3 moments during reception of data the parity DCF bits are checked to see if the data is valid.
After power-on, first a LED test is performed. The LED's and displays lite up sequentially to keep the power consumption low.
Then the clock starts receiving DCF pulses and when a Minute Mark (2 seconds gap) is detected, the Minute Marker LED is lit
and the buffer counter is reset. The inner LED ring now will show the incoming DCF pulses which are also stored in the buffer.
At 3 moments during reception of data the parity DCF bits are checked to see if the data is valid.
Valid data received:
When, at the end of the minute, after the Minute Mark is detected (BF (Buffer Full) LED is lit), all three parity bits are OK
('DCF OK' LED is lit), the buffer information is used to extract time and date information.
Then the RTC clock is updated ('RTC Synced' LED is lit) and the inner LED ring information is copied to the outer LED ring.
The time, date and week display, day LED, summer/wintertime and leap year LED information is updated with the new time information.
When, at the end of the minute, after the Minute Mark is detected (BF (Buffer Full) LED is lit), all three parity bits are OK
('DCF OK' LED is lit), the buffer information is used to extract time and date information.
Then the RTC clock is updated ('RTC Synced' LED is lit) and the inner LED ring information is copied to the outer LED ring.
The time, date and week display, day LED, summer/wintertime and leap year LED information is updated with the new time information.
No valid data:
When one or more of the parity bits are not OK because of a noisy signal, receiving of DCF information is continued but
will not be used to update the RTC, display's and LED's. The outer LED ring, 'RTC synced' and 'DCF OK' LED's will be reset.
Time, date, week, day LED, summer/wintertime LED and leap year LED are not affected and keep displaying the last received valid values.
The 'Period Time' and/or 'Period With' error LED's will indicate the error(s) and the error counter display is updated.
Every hour, the error display will bet set to zero.
The EoB, End of Buffer LED is lit when more DCF pulses are received before the Minute Mark is detected due to a noisy signal.
(When a minute Mark is detected we should have no more than 58 bits/pulses)
After the detection of the Minute Marker, a new cycle is started.
When one or more of the parity bits are not OK because of a noisy signal, receiving of DCF information is continued but
will not be used to update the RTC, display's and LED's. The outer LED ring, 'RTC synced' and 'DCF OK' LED's will be reset.
Time, date, week, day LED, summer/wintertime LED and leap year LED are not affected and keep displaying the last received valid values.
The 'Period Time' and/or 'Period With' error LED's will indicate the error(s) and the error counter display is updated.
Every hour, the error display will bet set to zero.
The EoB, End of Buffer LED is lit when more DCF pulses are received before the Minute Mark is detected due to a noisy signal.
(When a minute Mark is detected we should have no more than 58 bits/pulses)
After the detection of the Minute Marker, a new cycle is started.
Temperature:
At the 30 second mark, the temperature display will show the High and Low values of the past period after the last reset.
At the 30 second mark, the temperature display will show the High and Low values of the past period after the last reset.
Chime:
At the beginning of each hour, the Chime (if connected) will sound.
At night time, a time set by the user in the code itself, the chime is disabled.
At the beginning of each hour, the Chime (if connected) will sound.
At night time, a time set by the user in the code itself, the chime is disabled.
Power saving:
At times set by the user, the displays are shutt off at night and turned on in the morning.
Look at the POWERSAVINGOFFTIME and POWERSAVINGONTIME variables.
Check the function <tasksEveryHour> to select which displays you want to shut off at night.
Power saving, two options:
1. NIGHT SHUT OFF
At times set by the user, the displays are shutt off at night and turned on in the morning.
Look at the POWERSAVINGOFFTIME and POWERSAVINGONTIME variables.
Check the function <turnDisplaysOff> to select which displays you want to shut off at night.
2. PIR SENSOR
Connect a PIR sensor and activate the PIR option POWERSAVE_BY_PIR and the the delay at PIR_DELAY_TIME.
Every time the PIR detector senses movement, a minute counter is reset but if no movement is detected
longer than the PIR_DELAY_TIME, the displays are shut off.
When movement occurs, the displays immediately switch on.
Note: as said before, the clock will function normally while the displays are shut off.
The only thing is you can't see it... ;)
DCF beep:
With a switch, connected to pin BUZZERPIN, you can hear the received DCF bits coming in.
The tone duration is equivalent to pulse width of the DCF bits, so either 100 or 200 ms.
With a switch, connected to pin BUZZERPIN, you can hear the received DCF bits coming in.
The tone duration is equivalent to pulse width of the DCF bits, so either 100 or 200 ms.
Miscelleanous:
When the RTC battery is empty or a connection fault is detected, the RTC Error LED is lit.
When the RTC battery is empty or a connection fault is detected, the RTC Error LED is lit.
@@ -173,7 +196,7 @@
// Pin 0 - input - Rx - used for programming/communication with PC
// Pin 1 - output - Tx - used for programming/communication with PC
#define DCF77PIN 2 // Pin 2 - input - DCF signal from antenna pcb. Must be pin 2 or 3 because of interrupt!
// Pin 3
#define PIRDETECTORPIN 3 // Pin 3 - input - PIR detector: check for activity in the room to activate displays
#define BUZZERPIN 4 // Pin 4 - input - SWITCH - turn on/off DCF77 'beep' piezo buzzer / ON = HIGH, OFF = LOW
#define MAXIMCALD 5 // Pin 5 - output - CS/LOAD - Maxim Common Cathode 7 segment displays
#define MAXIMCACLK 6 // Pin 6 - output - CLOCK - Maxim Common Cathode 7 segment displays
@@ -248,8 +271,19 @@ LedControl MaximCA = LedControl(MAXIMCADATA, MAXIMCACLK, MAXIMCALD, 1, true); //
// define power saving display OFF and ON time
// values are in 'Hour' format
// ONLY the displays are shut off at power saving time, the clock remains active.
#define POWERSAVINGOFFTIME 8 // displays are activated
#define POWERSAVINGONTIME 23 // displays are shutt off
// To disable this feature, make both values zero
#define POWERSAVINGOFFTIME 0 // displays are activated
#define POWERSAVINGONTIME 0 // displays are shutt off
// User option to reset temperature min/max memory at midnight
// '1' = Reset at midnight, '0' = Only manual reset
#define TEMPRESET_MIDNIGHT 1
// User option: activate the displays only when there is activity in the room
// '1' = ON, '0' = OFF
#define POWERSAVE_BY_PIR 1
// delay in MINUTES to wait after no detection before shutting off the displays
#define PIR_DELAY_TIME 5
//-------------------------------------------------------------------------------
// define miscellaneous parameters
@@ -285,6 +319,7 @@ LedControl MaximCA = LedControl(MAXIMCADATA, MAXIMCACLK, MAXIMCALD, 1, true); //
// to lit a LED you need a ROW and COLUMN value.
// so, for example: BFLed (with value 14) divided by 10 results in the value '1' (row)
// and BFLed % (Modulo) 10 results in the value '4' (column)
// Modulo explained: http://www.cprogramming.com/tutorial/modulus.html
/* Row/Col LED numbers of Maxim 7219 chip
LED Row Col
@@ -402,6 +437,12 @@ float tempReading = 0;
int tempCelsius = 0;
boolean tempResetButton = false;
// PIR detector variables
int pirActivity = 0;
int pirDisplaysState = 1;
unsigned int pirTimer = 0;
unsigned long previousTimePIR = 0;
//==============================================================================
// SETUP
@@ -415,6 +456,7 @@ void setup()
pinMode(DCF77PIN, INPUT);
pinMode(TEMPRESETPIN, INPUT);
pinMode(BUZZERPIN, INPUT);
pinMode(PIRDETECTORPIN,INPUT);
pinMode(CHIMEPIN, OUTPUT);
pinMode(SPEAKERVOLPIN, OUTPUT);
@@ -481,7 +523,7 @@ void setup()
// Now get the temperature from the sensor and display it
displayTemp();
// reset errorCounter display
// activate errorCounter display after LED test
ledDisplay(MaximBufferBitError, "R", 0);
}
@@ -505,6 +547,9 @@ void loop()
// check if switches are changed and act upon it
checkSwitches();
// check for PIR movement
checkPIR();
// execute tasks that must happen only once every second, minute or hour
//----------------------------------------------------------------------------
@@ -1022,6 +1067,18 @@ void tasksEverySecond()
case 0:
// hourly chime output: ACTIVATE
if(dayTime == 1 && minute() == 0) digitalWrite(CHIMEPIN, HIGH);
// reset temperature min/max memory at midnight
//
// I did put this in the 'tasks every second' section so
// that this code is executed at one specific second only...
// Else we would need an extra variable to prevent this code to run
// every cycle during the whole '00' hour.
if(TEMPRESET_MIDNIGHT == 1 && (hour() == 00 && minute() == 00) )
{
minTemp = tempCelsius;
maxTemp = tempCelsius;
}
break;
case 2:
// hourly chime output: DEACTIVATE
@@ -1092,7 +1149,6 @@ void tasksEveryMinute()
// display date, week LED's, week nr etc. if time is changed
if (minute() != previousMinute)
{
// 'reset' state of variable
previousMinute = minute();
@@ -1101,6 +1157,10 @@ void tasksEveryMinute()
{
displayData();
}
// increase PIR delay counter
pirTimer++;
}
}
@@ -1116,80 +1176,66 @@ void tasksEveryMinute()
//================================================================================================================
void tasksEveryHour()
{
if (dcfHour != previousHour)
if (hour() != previousHour)
{
// 'reset' variable state
previousHour = dcfHour;
previousHour = hour();
//--------------------------------------------------------------------
// reset error counter and display
// reset error counter and display every hour
//--------------------------------------------------------------------
errorCounter = 0;
ledDisplay(MaximBufferBitError, "R", 0);
// update error counter display
ledDisplay(MaximBufferBitError, "R", errorCounter);
//---------------------------------------------------------------------
// Display power saving function, shutting the displays off at night
// Power saving function, shutting the displays off at night
//---------------------------------------------------------------------
// check whether it is Day- or Nighttime
if (hour() >= POWERSAVINGOFFTIME && hour() <= POWERSAVINGONTIME)
{
// ----------------------------------------
// it's DAYTIME so activate the displays
// ----------------------------------------
// this is used to chime only if it is daytime...
dayTime = 1;
// test variable because daytime routine is needed only once
if (daytimeChange == 1)
// First, check if the night shut-down function is activated by the user
// simply by adding up both value. If '0', the user has disabled the function
if(POWERSAVINGOFFTIME != 0 && POWERSAVINGONTIME != 0)
{
// check whether it is Day- or Nighttime
if (hour() >= POWERSAVINGOFFTIME && hour() <= POWERSAVINGONTIME)
{
// 'reset' variable state
daytimeChange = 0;
// ----------------------------------------
// it's DAYTIME so activate the displays
// ----------------------------------------
// this is used to chime only if it is daytime...
dayTime = 1;
// activate SELECTED displays and status LED's
MaximCC.shutdown(MaximRtcTime, false);
MaximCC.shutdown(MaximDate, false);
MaximCC.shutdown(MaximWeek, false);
MaximCC.shutdown(MaximLeds, false);
MaximCC.shutdown(MaximLedRingInner, false);
MaximCC.shutdown(MaximLedRingOuter, false);
MaximCC.shutdown(MaximTemperature, false);
MaximCC.shutdown(MaximPeriodPulse, false);
MaximCC.shutdown(MaximBufferBitError, false);
// test variable because daytime routine is needed only once
if (daytimeChange == 1)
{
// 'reset' variable state
daytimeChange = 0;
// activate SELECTED displays and status LED's
turnDisplaysOn();
}
}
}
else
{
// no chime at night...
dayTime = 0;
// ----------------------------------------
// it's NIGHTTIME so time to deactivate displays
// ----------------------------------------
// test variable because nighttime routine is needed only once
if (daytimeChange == 0)
else
{
// 'reset' variable state
daytimeChange = 1;
// no chime at night...
dayTime = 0;
// deactivate all the displays and status LED's
// below you can select which display's need to be shut down for the night
MaximCC.shutdown(MaximRtcTime, true);
MaximCC.shutdown(MaximDate, true);
MaximCC.shutdown(MaximWeek, true);
MaximCC.shutdown(MaximLeds, true);
MaximCC.shutdown(MaximLedRingInner, true);
MaximCC.shutdown(MaximLedRingOuter, true);
//MaximCC.shutdown(MaximTemperature, true); Time display remains ON
MaximCC.shutdown(MaximPeriodPulse, true);
MaximCC.shutdown(MaximBufferBitError, true);
// ----------------------------------------
// it's NIGHTTIME so time to deactivate displays
// ----------------------------------------
// test variable because nighttime routine is needed only once
if (daytimeChange == 0)
{
// 'reset' variable state
daytimeChange = 1;
}// if (daytimeChange == 0)
}// else
// deactivate all the displays and status LED's
turnDisplaysOff();
}// if (daytimeChange == 0)
}// else
}// if(POWERSAVINGOFFTIME + POWERSAVINGONTIME != 0)
}// if (dcfHour != previousHour)
}// void tasksEveryHour()
@@ -1288,6 +1334,60 @@ void int0handler()
DCFSignalState = digitalRead(DCF77PIN);
}
//================================================================================================================
//
// Function name : turnDisplaysOn
// called from : <tasksEveryHour> and <checkPIR>
//
// Purpose : turn ON selected 7 segment displays and LED's
// Parameters : none
// Return value : none
//
//================================================================================================================
void turnDisplaysOn()
{
// activate SELECTED displays and status LED's
MaximCC.shutdown(MaximRtcTime, false);
MaximCC.shutdown(MaximDate, false);
MaximCC.shutdown(MaximWeek, false);
MaximCC.shutdown(MaximLeds, false);
MaximCC.shutdown(MaximLedRingInner, false);
MaximCC.shutdown(MaximLedRingOuter, false);
MaximCC.shutdown(MaximPeriodPulse, false);
MaximCC.shutdown(MaximBufferBitError, false);
// Common Anode displays
MaximCA.shutdown(MaximTemperature, false);
}
//================================================================================================================
//
// Function name : turnDisplaysOff
// called from : <tasksEveryHour> and <checkPIR>
//
// Purpose : turn OFF selected 7 segment displays and LED's
// Parameters : none
// Return value : none
//
//================================================================================================================
void turnDisplaysOff()
{
// below you can select which display's need to be shut down for the night
// In this case, the time display remains ON
//MaximCC.shutdown(MaximRtcTime, true);
MaximCC.shutdown(MaximDate, true);
MaximCC.shutdown(MaximWeek, true);
MaximCC.shutdown(MaximLeds, true);
MaximCC.shutdown(MaximLedRingInner, true);
MaximCC.shutdown(MaximLedRingOuter, true);
MaximCC.shutdown(MaximPeriodPulse, true);
MaximCC.shutdown(MaximBufferBitError, true);
// Common Anode displays
MaximCA.shutdown(MaximTemperature, true);
}
//================================================================================================================
//
// Function name : ledDisplay
@@ -1341,9 +1441,9 @@ void ledDisplay(int addr, String leftOrRight, int value)
// Return value : none
//
//================================================================================================================
void checkSwitches(void)
{
//-------------------------------------------------------------
// read state of push button tempResetButton
tempResetButton = digitalRead(TEMPRESETPIN);
// reset temperature min/max values when push-button is pressed
@@ -1353,10 +1453,71 @@ void checkSwitches(void)
minTemp = tempCelsius;
}
//-------------------------------------------------------------
//read state of switch BUZZERPIN
dcf77SoundSwitch = digitalRead(BUZZERPIN);
}
//================================================================================================================
//
// Function name : checkPIR
// called from : <loop>
//
// Purpose : check for PIR detector activity to shut off or activate the displays to save power
// Parameters : none
// Return value : none
//
//================================================================================================================
void checkPIR()
{
//-------------------------------------------------------------
// Read PIR input, check for movement
// Only check for PIR activity if user option is '1'
// AND only every second to prevent waisted processor time.
if( POWERSAVE_BY_PIR == 1 && (millis() - previousTimePIR > 1000) )
{
// reset the 'once-per-second timer
previousTimePIR = millis();
// read the PIR detector PIN
pirActivity = digitalRead(PIRDETECTORPIN);
// turn displays ON or OFF depending on state of pin 'pirActivity'
if(pirActivity == 1)
{
// PIR activity detected...
// Reset the PIR timer variable (in <tasksEveryMinue> function) every time
// the PIR is activated so effectually resetting the shut-off timer.
pirTimer = 0;
// only continue if the display is now OFF
if(pirDisplaysState == 0)
{
// Toggle variable to prevent executing the following
// code every time the PIR detects activity
pirDisplaysState = 1;
//displays ON
turnDisplaysOn();
}
}
else
{
// No PIR activity detected so check the pirTimer counter in the <tasksEveryMinue> function).
// and if the delaytime has passed, only continue if the displays are now ON
// else this code would be executed many times per second
if(pirTimer > PIR_DELAY_TIME && pirDisplaysState == 1)
{
// Toggle variable to prevent executing the following
// code every time the PIR detects activity
pirDisplaysState = 0;
//shut off displays
turnDisplaysOff();
}
}// else
}// if(POWERSAVE_BY_PIR == 1)
}// void checkPIR()
//================================================================================================================
//