LED clock modification?

Projects General Guidance
1

Hi, I bought and soldered together one of these LED clock kits
http://www.ebay.co.uk/itm/351899968922?_trksid=p2057872.m2749.l2649&ssPageName=STRK%3AMEBIDX%3AIT
However, as well as the time it also displays the temperature, date and day of the week every 45 seconds.
This is unnecessary and can be confusing.
I would like it to permanently display the time only.
I guess this would mean reprogramming the ic which I cannot do.
Would it be possible to remove/bypass the ic and connect an arduino to the LED digits to display the time only please?
There is a light sensor that dims the LED's at night.
This works perfectly and is a feature I would like to keep.
Thanks for any help.

2

If you like to modify the source code of the clock
here is the code

If you like to control by Arduino
here is the example
http://www.qsl.net/v/ve3lny/travel_clock.html

3

Thanks BillHo,

Are you saying that if I buy a USB-UART adapter I can modify the firmware on the ic?

4

johnnycox:
Thanks BillHo,

Are you saying that if I buy a USB-UART adapter I can modify the firmware on the ic?

Yes, you can modify the firmware on the ic.