1000 Threads found on edaboard.com: Seven Segment Scanning
MAX7219 is nice for this application. You need only three port pins to connect this chip to a MCU. It can drive up to 8 seven segment LEDs.
Microcontrollers :: 04-19-2005 04:08 :: Dspnut :: Replies: 11 :: Views: 5063
Does seven segment led spice model exist?
Professional Hardware and Electronics Design :: 01-18-2003 14:12 :: wxsimon :: Replies: 2 :: Views: 1816
Any schematic and tutorial to drive seven segment with PLD or FPGA.
PLD, SPLD, GAL, CPLD, FPGA Design :: 07-05-2004 02:53 :: picus :: Replies: 0 :: Views: 734
How can I dispaly in a seven segment dispaly, with a atmel mega16 , several resistor and swithches, the numbers of 0 to 9, if a use the switches as a input for numbers in binary code, how can i read the 1 or 0 they send to me , in which register they will be located.
Microcontrollers :: 06-29-2005 13:49 :: snaider :: Replies: 2 :: Views: 2353
Please help in displaying the output of 6-bit counter in decimal format instead of hexadecimal on the 2 seven segment displays of FPGA board.
Also VHDL code for the debounce of Virtex-II FPGA board from Insight IMPACT with clock speed of 100MHZ
PLD, SPLD, GAL, CPLD, FPGA Design :: 09-12-2005 01:48 :: wsu :: Replies: 1 :: Views: 3239
hello genius guys
well now i am making a XCESS-3 calculator .the only problem i am facing is HOW TO DRIVE seven segment DISPLAY
i am using 7447 seven segment display ic.How this ic can be used.
how i connect my output from calculator (Binary form) to this 7447 ic.
plz reply soon
thz in advance
Digital communication :: 07-01-2006 12:44 :: installer2001 :: Replies: 1 :: Views: 2580
I am a beginner of learning hoe to use PIC to display seven segment display. Can anyone give a suggestion how to do. I am using MPLab IDE v7.31.
Microcontrollers :: 07-14-2006 01:07 :: AlexNg :: Replies: 2 :: Views: 3506
who can give a sample of verilog code that convert 4 bit binary (deciaml is 0-9) to display at seven segment? Inside the code need to have a reset and clock. I am facing problem to create a clock and reset.
If you are genuinely seeking for "help" (and not to get your job/homework done by others), post your code and explain
PLD, SPLD, GAL, CPLD, FPGA Design :: 10-02-2006 05:13 :: aji_vlsi :: Replies: 1 :: Views: 3301
You didn't say exactly which board you have, so here's an example that builds in Xilinx ISE 9.1i and runs on the Xilinx/Digilent Spartan-3 Starter Kit.
The "hex_display" module displays a 16-bit hex value on the board's multiplexed 4-digit LED display, with adjustable brightness. The "top" module assigns the FPGA pins and includes a simple 16-bi
PLD, SPLD, GAL, CPLD, FPGA Design :: 07-13-2007 03:51 :: echo47 :: Replies: 11 :: Views: 5072
This condition refers to dynamic displaying. the display step is like this:
1. for one time, you can select one seven segment, and put your digit to it, then wait for a moment (< 0.1/4 s)
2.and then, you can select another seven segment, and do the same thing as the first one.
3. repeat the same operation for the remain (...)
Microcontrollers :: 09-13-2007 10:11 :: RDRyan :: Replies: 3 :: Views: 3399
hi to all
why we use transistor in ( Binary to 7-segment with Decoder)i need a circuit schematics that show this application of transistor,also seven segment is common chatode.
Digital communication :: 03-09-2008 15:59 :: afouladi86 :: Replies: 1 :: Views: 1671
Does anyone have an idea on how to display the analog conversion into seven segment?
Analog Circuit Design :: 07-19-2008 21:53 :: itachi012587 :: Replies: 6 :: Views: 2671
I have Connected Port 0 of DATA BUS LCD and 3-MULTIPLEXED seven segment.
I have used three Transistors (NPN) in Common Collector Configuration.I am using Switching Between Vcc 'for LCD and Anode of seven segments with Common Collectors. So,LCD and seven segment at works (...)
Microcontrollers :: 12-10-2008 09:01 :: gurpreet312 :: Replies: 2 :: Views: 1304
before using lm35 & adc interface, simply send a fixed value, lets say "52" to the display. for this make a lookup table for each digit 0-to-9 having it's corresponding seven segemnt code. The 2 displays will run in multplexed mode. after you get the value then take the adc & lm35 and read the value & then transmit it to display.
Microcontrollers :: 03-01-2009 03:56 :: ansh1208 :: Replies: 6 :: Views: 2960
please help me program in assembler language...a seven segment display that everytime the pushbutton is pushed it will count from 0-9....attach here is my circuit...
Microcontrollers :: 03-20-2009 11:55 :: sheey :: Replies: 1 :: Views: 843
I am using PIC 16f873A controller. I that project I want to display float value in 4 digit seven segment LED display. the data lines(a to g) of the seven segment display is port B1 to B7, and dot point (DP) at C0. Can anybody help for me?
Thanks in advance.
Microcontrollers :: 07-28-2009 23:07 :: aanand_44 :: Replies: 0 :: Views: 1006
I have planned to design aa digital clock using large seven segment display, can any one help me in this.
Embedded Systems and Real-Time OS :: 10-29-2009 02:32 :: asghar_7931828 :: Replies: 1 :: Views: 3292
i m trying to make a digital clock with RTC(ds1307) ,but i am getting a problem
to throw on seven segment.
i have tried to make this code in c and i get easily in lcd ,but i am unable to throw same value on seven segment.
plz if some one help me how can i throw value in (...)
Microcontrollers :: 11-26-2009 07:15 :: shamikrudra :: Replies: 13 :: Views: 8363
I need to design a C code for 8051 using 4 seven segment displays
I have used the multiplexing of 4-displays and i wish to count from
"0000" - "9999' upon external signal
i've used the same multiplexing technique, 4 select lines and
common data line to all the displays
am not getting how to program this in C,
can anyone please
send me a
Microcontrollers :: 01-28-2010 06:15 :: amitrana3348 :: Replies: 3 :: Views: 3669
good day to all,
my project is about to show the heart beat using 7-segment means i have to use a PIC which i already have PIC16F and as far as i know i must use decoder and connect from the PIC and the decoder to the seven segment--- so what i have to measure or what is the formula i must use or any guide to go through plzzzz
Microcontrollers :: 02-03-2010 12:35 :: wavestorm1986 :: Replies: 0 :: Views: 608
Hi was doing this multiplexing 10 seven segment using pic16f887 but i having a problem in programming hopefully someone can help with it. i manage to on perfectly show number for the 1st to 8th as the port D is used to control the seven segment but the last two digit was not work perfectly as it is always on which i put (...)
Microcontrollers :: 03-04-2010 09:53 :: huntersouls :: Replies: 2 :: Views: 1047
hi to all,
i was making a code in asm it is a clock which displays hours and minutes. but then as i was running the program I doesnt change the display in seven segment...
i can send you the code i made...
Microcontrollers :: 03-21-2010 01:49 :: rookie_here08 :: Replies: 1 :: Views: 617
helloo..everyone...can anybody help me on how am i going to interface two seven segment led display to pic16f84a..using only 6 ports of the pic...and also a buzzer...:|wat ic am i going to use...pls...
Microcontrollers :: 03-25-2010 05:48 :: welagallentes :: Replies: 0 :: Views: 1232
I want to drive 4" seven segment display (25 nos.) 5 X 5 matrix form.
But I do not know how to drive 4" seven seg display .
Please suggest any driver IC also Latch for that.
But, you can control 4 sev. seg displays without using any driver/latch ICs, by using multiplexing techique.
Microcontrollers :: 04-07-2010 05:48 :: anandpv2009 :: Replies: 5 :: Views: 2760
Help me adc result on 3 digit seven segment display using pic 16f676.
Microcontrollers :: 04-18-2010 13:23 :: sahu :: Replies: 3 :: Views: 2099
I need to display a 3 digit number using 3 seven segment displays..
For Ex 516
How can I convert the number into hundred digit(Ex: 5), ten digit(Ex : 1), one digit(Ex : 6) using MPLAB assembly coding?
Thanks in Advanced!
Microcontrollers :: 04-18-2010 22:18 :: abimaran :: Replies: 1 :: Views: 2166
I've got a 16 bit output from ADS 7825, which is 16 bit adc. I've 6-seven segment displays. Now I want this 2 byte adc output on 7-segment.
So can anyone tell me how do i conversion of this hex bytes to decimal and then print them on seven segment??? The output is signed int. I am using ATMEGA 128 (...)
Microcontrollers :: 04-22-2010 02:32 :: Nikunj Tanna :: Replies: 3 :: Views: 1203
Check pls these actual parallel/similar topic:- :-)
Digital clock using large seven segment display
BTW: was the nothing?
(These address is on my PC (at home) blocked, I can today nothing se from it...)
Microcontrollers :: 06-16-2010 03:43 :: karesz :: Replies: 4 :: Views: 2714
is this because of im using too many multiplexing of seven segment so the brightness is dull?
Yes. 20mA would be bright enough, if one 7-segment display would get it all the time. Because of the multiplexing, however, it gets this current only about 1/22 (assuming there's only 1 mux-group) of the time, which means it
Analog IC Design and Layout :: 06-27-2010 08:53 :: erikl :: Replies: 7 :: Views: 2000
Do something similar to:
2'b00 : out <= out;
2'b01 : out <= 1'b0;
2'b10 : out <= 1'b1;
2'b11 : out <= ~out;
so that you can use the bits to control the 7 segment display or you can also use a seven segment decoder =)
PLD, SPLD, GAL, CPLD, FPGA Design :: 10-19-2010 03:02 :: john blue :: Replies: 2 :: Views: 1013
can anyone help me with this circuit..
i am aiming to have a program that will give ang output that only 1 seven segment will turn on at a time..
Microcontrollers :: 12-04-2010 20:38 :: akoangsimula :: Replies: 9 :: Views: 646
I have recently joined an institute to learn verilog and FPGA kit.
I am having Spatran 3e kit but the kit which they are using is having seven segment display. So in order to do practice i need seven segment display. Is there any external adapter for 7 segment display which can be used with kit. (...)
PLD, SPLD, GAL, CPLD, FPGA Design :: 12-09-2010 12:35 :: moonnightingale :: Replies: 1 :: Views: 482
first let me clear your question..there is no 6 SSD . SSD is seven segment display. you can built A circuit with 5 volt supply and if u know binary code in the scene that is more than enough to write the code. you need 470ohm of pull up array to connect to the seven segment.use 8051 any port i think below image helps you (...)
Electronic Elementary Questions :: 12-11-2010 04:05 :: praveenlb :: Replies: 1 :: Views: 1268
Today i purchased 4 digit seven segment Display. I am having both common cathode and common anode display.
How can i connect this with my Spatran 3e as it is having LCD and i dont want to jump directly to LCD. At present i am using 8 LEDs and now i am confident to use them. Now i want to use seven segment.
Somebody told (...)
PLD, SPLD, GAL, CPLD, FPGA Design :: 12-12-2010 07:37 :: moonnightingale :: Replies: 7 :: Views: 633
can you upload your circuit so that we can trace
try to make common anode seven segment only first
in this circuit i tried to connect resistor suitable to anode led in series and cathod to uln2003 out put .
why you use 220 ohm resistor i don't know ?
since four leds are in series resistor value will decrease (12v)
Microcontrollers :: 12-17-2010 05:45 :: santoshaxl :: Replies: 7 :: Views: 1048
Try this: Pic Microcontroller P16F84 Tutorial: seven-segment Display Example : 8051 Microcontroller Projects AVR PIC Projects Tutorials Ebooks Libraries codes a lot of samples around in the web. so do check them out!
Microcontrollers :: 12-27-2010 08:24 :: john blue :: Replies: 1 :: Views: 1038
I am using the PIC18f4520.
How do i count my dual seven segment from 0 -60 and stop?
I would like to know the coding for this function.
Yr help would be much appreciated
Microcontrollers :: 01-19-2011 03:02 :: mohideen :: Replies: 3 :: Views: 804
i am trying to interface a seven segment led display of four digit (common cathod) with the msp4302112.can any one tell me how i can interface ?
Electronic Elementary Questions :: 02-17-2011 23:04 :: raksha singh :: Replies: 2 :: Views: 735
refer this site for help
PIC Tutorial Ten - 7 segment LED's
Interfacing seven segment Displays | eXtreme Electronics
Electronic Elementary Questions :: 02-17-2011 23:34 :: ckshivaram :: Replies: 7 :: Views: 2040
to whom you are interfacing seven segment? with microcontroller??
PC Programming and Interfacing :: 04-19-2011 09:33 :: qwertyuiop415263 :: Replies: 4 :: Views: 851
I Want to interface 7segment display with Assembly Language using parallel port...
The problem is Parallel port has 8 outputs and I want to connect 8 seven segment display....how should I Do it...?
if using Multiplexer IC...then which will do my work Perfectly..?
Analog Circuit Design :: 05-08-2011 04:18 :: hassaan_july :: Replies: 4 :: Views: 1426
Here's pseudocode for what you want:
for each digit
select digit i by grounding common cathode
apply seven-segment drive for this digit
This code will need to sequence through the digits at least 40Hz or faster.
However, don't scan too fast since that will reduce the apparent LED brightness.
Microcontrollers :: 05-20-2011 17:01 :: grieblm :: Replies: 2 :: Views: 766
Is it possible to interfacing 8 seven segment with Micro controller using only 16 transistors???
If yes , then please give the idea of this circuit.:roll:
Electronic Elementary Questions :: 06-17-2011 08:38 :: patelvimal20 :: Replies: 5 :: Views: 1201
You can get an idea from:
Control 7 segment LED displays with AVR - Scientific, embedded, biomedical, electronics contents.
Interfacing seven segment Displays | eXtreme Electronics
Microcontrollers :: 06-19-2011 13:12 :: alexan_e :: Replies: 4 :: Views: 1276
yes you can use ULN ...
No he can't, he is using common anode displays and he wants to use the uln2003 to control the common supply of common anode displays, the segment cathodes are connected to the PIC
i am using common anode (positive) seven segment...
i connect segment to directly to pic16f877a's po
Analog Circuit Design :: 07-11-2011 05:46 :: alexan_e :: Replies: 15 :: Views: 1284
Who can help me to get the good otuput temperature;I am using PIC16F877A and two seven segment display(common anode )driven with BC337 (NPN transistors).
see my code here below:
Microcontrollers :: 08-14-2011 03:58 :: john120 :: Replies: 1 :: Views: 841
Hi friends i'm using a 2.3" seven segment display(3nos), which is best driver IC or circuit i should go through??
Please suggest a best driver circuit.
Microcontrollers :: 10-09-2011 09:22 :: binojkumar :: Replies: 4 :: Views: 1062
An example of multiplexing is explained at the following link. Though it is for PIC but it can quickly be adopted to 8051 knowing the concept
Lab 11: Multiplexing seven segment LED displays :Embedded Lab
Microcontrollers :: 11-12-2011 18:05 :: ark5230 :: Replies: 4 :: Views: 1204
hi i need to display received string on serial port of 89c52 to display it on seven segment. how can i perform the received data string to 7 segment
i am receiving 10 char string and want display them on 10 different 7 segment.
Microcontrollers :: 11-19-2011 06:37 :: ud23 :: Replies: 10 :: Views: 647
I had did some search for selection of seven segment displays for design....i.e. when to use common Cathode and when to use common another word what are the advantages that one will get if one is using common cathode displays over common anode and vice versa....but could not able to get satasficatory a
Microcontrollers :: 12-29-2011 00:30 :: bigdogguru :: Replies: 4 :: Views: 2031