[time-nuts] ko4bb monitor

WB6BNQ wb6bnq at cox.net
Sat Jan 23 00:26:57 UTC 2010


Hi Arthur,

I believe that FlukeL makes a statement that he changed the chip from the original in the unit.  Probably because he
needed more programming space.

Can you tell us what chip is in the unit that you got from FlukeL ?

Bill....WB6BNQ


Arthur Dent wrote:

> The Thunderbolt display unit fluke.l is selling is a Icruze
> display module by Monster
>
> that he apparently just reprogrammed. When it is powered up
> there is a message that
>
> says No1Electric.com (one of his businesses) then it starts
> displaying messages from
>
> the Thunderbolt.Â
> It works quite well displaying the time on the top line every
> second
>
> and T-bolt status messages on the bottom line changing
> every 2 seconds. There is a
>
> blue backlight that give good readability. The connections
> are +5, GND, and RS-232
>
> data in.
>
> Â
>
> Â Amazon has these
> displays available for $2.50 or less, apparently they weren't a big
>
> seller and they are dumping them. You can check them
> out at:
>
> (http://www.amazon.com/Monster-Display-MPC-FX-LCD-UM/dp/B0007LZGHO).
>
> Â I bought one through
> Amazon to check it out and the one I got uses a different chip
>
> than the one I bought from fluke.l. There is an Atmel
> ATtiny26L 8-bit AVR
>
> microcontroller with 2K bytes flash memory on the one I just
> bought and there is a
>
> 185 page PDF application manual for that chip available at:
>
> http://www.atmel.com/dyn/resources/prod_documents/doc1477.pdf
> ,
>
> if you want to check it out. Fluke’l’s unit runs off +5V but
> the unit I just got has a microÂ
>
> SMT +5V 3-terminal regulator and was designed to run off +12
> (probably 7-20 range).
>
> Â
>
> I would expect that someone with programming experience
> could also make this unit
>
> into an inexpensive display to mount on the front panel
> of the Z3801.Â
>
> Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â
> -RJB
>
>
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