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files) or replace clock battery.  Yes, clock has internal small coin type battery for keeping time 
when external power is not available. It should last few years when in use, and much longer 
than not in use. 
 

Setting Time (and surviving apocalypse) 

 
After everything is up and running first thing you’ll might want to do is to set correct time and 
date. Out of the box clock is set to 24 hour (a.k.a. military time) mode.  If you are more familiar 
with 12 hour mode (AM/PM) sorry, you are out of luck. Just kidding :)  You can change modes 
by pressing MENU button until you see Settings on the screen. Press SET button. First option 
will be 12/24 hour mode. Press INCR button to change it if needed. 
 

Hint: When you see something is flashing it means its selected and ready to be changed with INCR button. 

 
Press MENU button again several times until you see Date/Time on the screen. Press SET 
button to select Hours/Minutes, etc. and INCR button to change it.  Don’t fret if you accidently 
went over current year!  Once you hit year 2040 it will go back to 2013. Why 2040?  What a silly 
question! That’s when either world will end or Xronos Clock will become self-aware and will no 
longer need you (which is the same thing). So please be nice to it. 
That’s it, now you should have a grasp of how menu system works, and at the end of the 
manual you will find especially boring fun schematic of all the menu functions and flows, sorry 
no pie charts. 
 

Secondary Functions 

 
As I mentioned earlier (were you paying any attention or just mashing arcade buttons?) each 
button has secondary function. Heck some have even more than 2!  Xronos clock is practically 
Swiss army knife of clocks! Well not really a knife, and not Swiss

, but it’s still pretty versatile! 

Most notable is the INCR button a.k.a. (we have ways of making you) TALK button. When not in 
any menu pressing INCR button will make Xronos Clock talk. Sorry it probably won’t be most 
engaging storytelling, but it will tell you current time, date, inside temperature and even what 
your alarms are set to!   
Just briefly press and release this button to hear next item. If you pause for more than 6 
seconds between presses it will go back to 1st item (i.e. current time). You can also hold INCR 
button for 2 or more seconds and once you release it clock will go into continuous talk mode 
meaning it will tell you time, date, temperature and alarm settings without you having to press 
button after each item.  What you clock says is customizable via User Options menu. There you 
can choose what you want Xronos to say or not to say.  For example you can set it to tell you 
only date and temperature, but not Time and Alarm settings.  
When alarm sounds INCR button can also be used to turn on “please just few more minutes” 
Snoozing. Actually SET button also turns on Snooze. Either one will let you catch some more 
zzz’s. That’s pretty much all this “SAD” SET button does when not in the menu :( 

Summary of Contents for Alarm Clock V2.1

Page 1: ...art Xronos clock comes with a good quality AC Adapter that will power your clock and won t waste too much of power Firmly plug in power adapter into wall outlet and DC cable into clock s right side As...

Page 2: ...ATOR Looking at the top of the clock you will find 3 very sleek looking arcade buttons From left to right they are MENU SET and INCR or Increment and well that s it What did you expect a QWERTY keyboa...

Page 3: ...hange to selected item And no need to save settings All changes are saved into permanent memory EEPROM either immediately after pressing INCR button or after clock exits from menu Now look at the righ...

Page 4: ...Left side of the clock has removable panel held by 3 screws for easy access to clock interface in case you want to re program update firmware access microSD card that holds all audio...

Page 5: ...g fun schematic of all the menu functions and flows sorry no pie charts Secondary Functions As I mentioned earlier were you paying any attention or just mashing arcade buttons each button has secondar...

Page 6: ...via MENU button Alarm will reset itself after 1 hour has passed or second Alarm kicked off Alarm menu system is slightly different from other menus and requires master s degree in nuclear dentistry to...

Page 7: ...Temperature Offset What is it and why it s needed you might ask Can it reverse effects of the global warming Well you see Xronos Clock components generate some heat Especially LED matrix As efficient...

Page 8: ...held for few seconds starts to reprogram remote More on this later Up Down CH buttons Same function as SET button Left Right VOL buttons Decrement new feature or Increment same as INCR button functio...

Page 9: ...s clock supports remote temperature and humidity data If you want to build your own sensor use Arduino code provided on our website xronosclock com If you are maker possibilities are endless Here are...

Page 10: ...Hours Minutes Day Month Year maximum Year allowed 2040 after which it goes back to 2013 Sys Setup Sets global clock settings Mode Choose 12 hour AM PM or 24 hour clock mode Brightness Select LED disp...

Page 11: ...to display humidity data from optional external sensor This item will not show up if RF sensor is turned off Exit Talk Items Say Time Y N Option to announce Time when TALK button is pressed or held S...

Page 12: ...r not Other than this you might have to occasionally change internal clock battery in case you notice clock loses time if there was power interruption Xronos takes generic CR2032 coin type 3V battery...

Page 13: ...ront of the clock maintenance door is on the left of the clock opposite from speaker side held by 3 small screws as shown on the picture above 3 Gently remove screw that holds door from the back of th...

Page 14: ...r will also allow you access to the FTDI programming interface You will need a 5V USB FTDI adapter board or cable you can get one on Sparkfun or eBay Make sure you unplug external power first FTDI wil...

Page 15: ...re a COM port 4 Take a note of the COM Port number by going Device Manger via Control Panel system or right clicking on Computer icon on your desktop Under Ports you will see USB Serial Port Note it s...

Page 16: ...ain board and put front panel aside If you need to remove LED display simply unscrew 4 screws holding it but remember which was it was oriented Main board and power supply both attached to the back pa...

Page 17: ...tach left maintenance door and secure it with 3 screws 2 x 4 40 from side and one 9 16 4 40 from back Tighten acorn nuts with hand and also tighten 2 half inch 4 40 screws holding speaker panel Do not...

Page 18: ...f you can get any serial output that will tell you anything meaningful set baud rate to 115200 Try uploading latest firmware or sent clock back to me for repair reprogramming Remember 99 of issues wil...

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