Update

Updated with net 1.72 info

README.md

@@ -1,5 +1,6 @@
+ ================================================================================
  DCF77 Analyzer / Clock
- 
+ ================================================================================
  This sketch is free software; you can redistribute it and/or
  modify it under the terms of the GNU Lesser General Public
  License as published by the Free Software Foundation; either
@@ -31,9 +32,22 @@
    
  
 
- August 2014 First version
+ 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, 
@@ -45,7 +59,9 @@
    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...
@@ -98,10 +114,18 @@
     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:
+  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 <tasksEveryHour> to select which displays you want to shut off at night.
+       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. 
@@ -111,3 +135,28 @@
     When the RTC battery is empty or a connection fault is detected, the RTC Error LED is lit.
 
 
+
+
+ CREDITS:
+ I learned a lot from the work of Matthias Dalheimer and Thijs Elenbaas who made their own DCF77 decoders.
+ Without their work I would not have known where to start.
+ I ended up writing my own code (using bits and pieces of their ideas) so I could understand what is happening...
+ My code is far from efficient or advanced but it does work and I know what is going on.
+ 
+ * A big Thank You to Brett Oliver and Joop Tap for pointing out some errors!
+
+ Interesting websites:
+
+ - Brett Oliver         : http://home.btconnect.com/brettoliver1/
+ - Joop Tap             : http://www.jooptap.nl
+ - Thijs Ellenbaas      : http://thijs.elenbaas.net/2012/04/arduino-dcf77-radio-clock-receiver-hardware-2/
+ - Mathias Dalheimer    : https://github.com/roddi/DCF77-Arduino/blob/master/DCF77Servoclock/DCF77.h
+ - DCF77 wikipedia      : https://en.wikipedia.org/wiki/DCF77
+ - Much more DCF77 info : http://www.picbasic.nl/indexes_uk.htm
+
+ - My Flickr website    : https://www.flickr.com/photos/edr1924/albums
+ - My Github website    : https://github.com/deruiter
+ - The Instructables website for this clock: soon!
+
+ */
+