convert hex code to 7 seg display - Electronic Circuits Projects Diagrams Free

electroicarus · 25th May 2006, 01:22 AM

I need help to convert a code hex to 7 seg display.

Styx · 25th May 2006, 01:32 AM

thats nice....

a bit more detail abt what exactly do you need?

Papabravo · 25th May 2006, 04:41 AM

It is almost trivial.
You make a lookup table with ten entries, one for each digit in the range 0-9.
Each entry in the table has a one to turn on the appropriate segments.
Use the digit as an index into the table.
For each digit you want to display, output the contents of the corresponding table entry.

electroicarus · 25th May 2006, 05:41 AM

The circuit consists of a thermometer to meassure 0 to 99 centigrade degree ,i use a ADC0804 ,and the output goes connected to a 7seg display.I am looking for some integrated circuit that make this task.

electroicarus · 25th May 2006, 05:47 AM

I was confused ,was convert the binary ouput to bcd 7 seg.

**Nigel Goodwin** · 25th May 2006, 09:53 AM

Quote:

Originally Posted by electroicarus

The circuit consists of a thermometer to meassure 0 to 99 centigrade degree ,i use a ADC0804 ,and the output goes connected to a 7seg display.I am looking for some integrated circuit that make this task.

Throw the ADC0804 away, and use a PIC - this can read the analogue input and display directly on the 7 segment displays - you just need to write the software to do it. But all the code you require is in my tutorials.

akg · 26th May 2006, 08:29 AM

Quote:

Originally Posted by electroicarus

I was confused ,was convert the binary ouput to bcd 7 seg.

are u looking for something like these .?
http://www.alldatasheet.com/datashee.../TI/74185.html
http://www.alldatasheet.com/datashee...I/SN7447A.html

electroicarus · 27th May 2006, 07:18 AM

Thanks to all for its answers.

synckewl · 26th July 2006, 03:23 AM

Quote:

Originally Posted by akg

are u looking for something like these .?
http://www.alldatasheet.com/datashee.../TI/74185.html
http://www.alldatasheet.com/datashee...I/SN7447A.html

Hi akg, do you know where I can find datasheet on HEX-to-seven segment decorder?

Thank you

kchriste · 26th July 2006, 04:00 AM

Synckewl, I think this is close to what you want:

http://www.fairchildsemi.com/ds/CD/CD4511BC.pdf

There are several types of these legacy parts around.

akg · 26th July 2006, 07:01 AM

Quote:

Originally Posted by synckewl

Hi akg, do you know where I can find datasheet on HEX-to-seven segment decorder?

Thank you

alldatasheets.com or datasheetarchive.com

synckewl · 26th July 2006, 07:31 AM

Quote:

Originally Posted by kchriste

Synckewl, I think this is close to what you want:

http://www.fairchildsemi.com/ds/CD/CD4511BC.pdf

There are several types of these legacy parts around.

thanks,
I looking for the basic gates (eg: AND) for Hex-7 segment decoder.

William At MyBlueRoom · 26th July 2006, 02:58 PM

This pdf has the logic diagram for digits 0-9.

http://www.ee.washington.edu/stores/...000/cd4511.pdf

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25th May 2006, 01:22 AM	(permalink)
electroicarus	convert hex code to 7 seg display I need help to convert a code hex to 7 seg display.

25th May 2006, 01:32 AM	(permalink)
Styx	thats nice.... a bit more detail abt what exactly do you need? __________________ Nothing is impossible. Once a problem is realised, the rest is just details

25th May 2006, 04:41 AM	(permalink)
Papabravo	It is almost trivial. You make a lookup table with ten entries, one for each digit in the range 0-9. Each entry in the table has a one to turn on the appropriate segments. Use the digit as an index into the table. For each digit you want to display, output the contents of the corresponding table entry. Last edited by Papabravo; 25th May 2006 at 04:44 AM.

25th May 2006, 05:41 AM	(permalink)
electroicarus	The circuit consists of a thermometer to meassure 0 to 99 centigrade degree ,i use a ADC0804 ,and the output goes connected to a 7seg display.I am looking for some integrated circuit that make this task.

25th May 2006, 05:47 AM	(permalink)
electroicarus	I was confused ,was convert the binary ouput to bcd 7 seg.

27th May 2006, 07:18 AM	(permalink)
electroicarus	Thanks to all for its answers.

26th July 2006, 04:00 AM	(permalink)
kchriste	Synckewl, I think this is close to what you want: http://www.fairchildsemi.com/ds/CD/CD4511BC.pdf There are several types of these legacy parts around.

26th July 2006, 02:58 PM	(permalink)
William At MyBlueRoom	This pdf has the logic diagram for digits 0-9. http://www.ee.washington.edu/stores/...000/cd4511.pdf __________________ Bill Home of the Firefly PIC Tutor Inchworm ICD2 http://www.blueroomelectronics.com