linking bar graphs? - Electronic Circuits Projects Diagrams Free

bunghole · 11th September 2007, 10:43 AM

hi, i need to know if there is anyway to link bar graphs together to form a led analogue meter for a speedometer. Is it possible to use a LM3914M?

ta.

**Nigel Goodwin** · 11th September 2007, 11:17 AM

Quote:

Originally Posted by bunghole

hi, i need to know if there is anyway to link bar graphs together to form a led analogue meter for a speedometer. Is it possible to use a LM3914M?

Yes, it's all explained in the datasheet.

bunghole · 12th September 2007, 08:44 AM

i had a small bar graph meter i already built as a battery monitor so i didn't get a datasheet. is there an links to datasheets?

ta

Tomble · 12th September 2007, 08:50 AM

Quote:

Originally Posted by bunghole

is there an links to datasheets?

ta

I hear the google is popular for this purpose...

ericgibbs · 12th September 2007, 08:51 AM

Quote:

Originally Posted by bunghole

i had a small bar graph meter i already built as a battery monitor so i didn't get a datasheet. is there an links to datasheets?

ta

hi,
I use www.datasheetarchive.com

Type in the part number in the search box then click on 'pdf' to download.

bunghole · 13th September 2007, 08:51 AM

thanks for that

Gordz · 3rd November 2007, 11:10 PM

Google for 'charlieplexing' it is good for twenty LED's and draws far less current, and you have a much better choice of display style. Microchip had this in their Tips-n-Tricks about 3 years ago.

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11th September 2007, 10:43 AM	(permalink)
bunghole	linking bar graphs? hi, i need to know if there is anyway to link bar graphs together to form a led analogue meter for a speedometer. Is it possible to use a LM3914M? ta. __________________ Every little bit counts! It works with money, and it works with electronics!

12th September 2007, 08:44 AM	(permalink)
bunghole	i had a small bar graph meter i already built as a battery monitor so i didn't get a datasheet. is there an links to datasheets? ta __________________ Every little bit counts! It works with money, and it works with electronics!

13th September 2007, 08:51 AM	(permalink)
bunghole	thanks for that __________________ Every little bit counts! It works with money, and it works with electronics!

3rd November 2007, 11:10 PM	(permalink)
Gordz	Google for 'charlieplexing' it is good for twenty LED's and draws far less current, and you have a much better choice of display style. Microchip had this in their Tips-n-Tricks about 3 years ago.