Saturday, February 5, 2011

Wise Clock 3 kit now available in store

Updated Oct 21, 2011
This "Wise Clock 3 kit" does not include the display. To build the clock, you need to provide your own 3mm 3216 display (about $30 on ebay) and make your own enclosure.
"Wise Clock 3 complete kit", which includes the 3mm display and the laser-cut enclosure, is offered for sale here.

Now that I have a version of the software working well with Wise Clock 3 board, I can offer a "Wise Clock 3 kit" for sale. This board is designed to plug directly into the 3mm 3216 LED display from Sure Electronics. The software is pre-loaded onto the microcontroller chip.

Note: Wise Clock 3 board can be connected to the 5mm 3216 display only through the ribbon cable that comes with the display. If you insist on using the 5mm display (which I do not recommend), you will need to replace the right (looking at the top/component side) connector with your own 2x8 male header.

  (US$62, free shipping to North America)

This is, in summary, what Wise Clock 3 can do (Edit: the software is upgraded periodically, here is the latest):
  • display the current time, retrieved from the highly accurate real time clock that is DS3231;
  • along with the time, display quotations retrieved from a user-editable file on SD card;
  • display a personalized, user-editable, message, e.g. "Happy birthday John", "Happy Valentine's Day my dear love";
  • display the date and temperature;
  • display the time as a Pong Clock;
  • sound alarm at the specified, user-settable (through buttons), time;
  • set the time, date and day of week from buttons;
  • enable/disable the display of personalized message, date, temperature.

The content of the Wise Clock 3 kit is shown in the above photo and includes the following parts:
  • PCB;
  • ATmega644P microcontroller with the Arduino bootloader, preprogrammed with the latest Wise Clock 3 software;
  • 40-pin socket for the microcontroller;
  • SD card socket (*);
  • DS3231 real-time clock (*);
  • 16MHz crystal;
  • CR1220 coin backup battery for RTC;
  • holder for the coin battery;
  • piezoelectric buzzer;
  • miniB USB connector;
  • 9 x 10K resistor;
  • 3 x 4K7 resistor;
  • 100 ohm resistor;
  • blue LED;
  • 4 right-angle micro push buttons;
  • 2 x 16-pin female headers (display connectors);
  • 6-pin right angle male header (FTDI connector);
  • 3V3 voltage regulator;
  • 3 x 100nF decoupling capacitors;
  • 2 x 22pF capacitors.
(*) I solder the SD card socket and DS3231 chip for you.

   (US$62, free shipping to North America)


  1. How hard would it be to program this to shut off the display at night, and turn it back on in the morning (at a time, or with the morning alarm)?

  2. Gene, not big deal at all. Actually, there is a "Sleep" mode, which does just that: turns off the display. Display comes back on as soon as a button is pressed.

  3. Does the kit come with the plexiglass case? If not, can I buy these separately?

    R. Morrison

  4. The plexiglass plates are not included in this kit. I can provide you with the DXF file which will allow you to order it at one of the many places offering laser cutting services (like, for example).

  5. I love it! There seem to be two variants of the LED display board on ebay thoughm both with the same model number. Looking at the pictures it seems that your board is designed for 3mm LED's, is that the right one?

  6. Mat, yes, the board is designed to plug into the 3mm 3216 display.

  7. Is it difficult to program a message to appear at a particular time and then disapear at a particular time? (for someone who does not know Arduino yet)

  8. Not at all. The clock already has an alarm function. Instead (or beside) of sounding the alarm, a particular message could be displayed.
    This is for the case of just one pair [time, message]. It could get more complicated if you are interested in multiple pairs [time, message].

  9. I was wondering if you might be thinking about making this project work on the bigger display as well, the 64x32. That would be GREAT!!!!

  10. tom, where did you see the "bigger display", the 64x32? A link would be appreciated, thanks.

  11. Opps sorry I did not see this message till now. I deeply apologize.

    please email me when time permits.

  12. In addition to the "bigger display" above, I'd like to suggest that you add an accelerometer (Freescale MMA7660) to it, or at least make i2c available on the board (I don't see obvious SDA/SCL pins).

  13. littlepuddles, you are right, I2C lines are not obvious as they should be. But the SCL/SDA signals are accessible through the extension header PC, pins 1 and 2, which are connected to pins 22 and 23 of the processor, respectively.

  14. Went to look at the schematics and I saw what you did there :-) Put me down for one when you get around to doing the bigger 64x32 EmbeddedArtists panel. Right now I've got 16x16 RGB panel I am working on, and the bigger bi-color panel will be a definite addition to my collection of blinky things.

  15. You are at the top of the queue my friend.

  16. Do you ship these kits to the Netherlands?
    And if so what would be the shipmentcosts?

  17. Yes, shipping to Europe for this kit is US$5 more (for a total of US$67).

  18. Will this kit work with the dual led matrix shields you also sell? Or do I need to get just the base wiseduino for that?

  19. Adam,
    The Wise Clock 3 kit was not designed to work directly with the LED matrix shield.

    The shield is compatible with any Arduino, not only Wiseduino (which offers the added functionality of an RTC and 32KB of external eeprom).