Large LED CLOCK display

[pasicr]

large led clock

Hi,
I need info or link for made 24 cm high led clock display, with time, date and temperature show,
something like led display used on gas station, for example,
regards

 

[baron88]

large led arabic clock

I think this is part from what you want (clock).
Please find attached

 

[pasicr]

huge led display topics

Hi Baron,
thanks for info, but I need good working projects for clock and temperature show like this:

regards

 

[baron88]

large led clock displays

Pasicr in the attached temperature measuring circuit .I don't know if it help .
Best Regards

 

[pasicr]

large ledclock

Hi for all,
can somebody suggest me how can I connect (between) this led's 5 mm red diode's (picture show diode arrangement for one segment in 7 segment display),

If someone have a experience with led constant current driver, divide with me,
regards

 

[blueroomelectronics]

You don't need constant current, just use the same number of LEDs per segment.
You've got 26 LEDs so you'll need 2x13 rows (or carefully do the math for different combinations)
So 1.8V * 13 = 23V per set + 0.7V drops if you use bipolar drivers + some overhead for the resistor, lets say 2.3V so 26V supply will need a 150ohm resistor (this will give each LED about 15ma so nice and bright)

 

[kosta]

250 and 500mm Large LED dispay:

**broken link removed**

 

[Sayem Ahmed]

<<<>>><<<>>><<<>>><<<>>><<<>>><<<>>><<<>>>

Now I add all my hobby project about clock for your help


================ENJOY THIS==================


<<<>>><<<>>><<<>>><<<>>><<<>>><<<>>><<<>>>

 

[blueroomelectronics]

That MAX7219 is a very nice but not cheap part, also may be hard to source for some.
It's SPI or (Microwire MAX7221) and does most of the work for you.
It's only for simple LED display (less than 3V LEDs) and cannot drive a large HV LED display.**broken link removed**
**broken link removed**

 

[eng.love]

Thnaks for all

 

[husni132]

soory, can u help me making scoringboard?

I don't have an idea, I'm a newbie

 

[DE2IS]

Thanks a lot guys i needed one of these.

 

[tvthang]

This is an example for you: