multiplexing two 7 segment displays

[rebirth of sands]

hiii folks....this is my first robot that i am making and i need help with the display...id be needin two 7 segment displays multiplexed and then increment them..the problem i am facing is with gettin 10 on the leds....please someoone help me out
thanx...rebirth of sands

 

[blueroomelectronics]

More details please, schematic would be a help.

 

[rebirth of sands]

okay...my project is to detect black squares which are placed all over the maze..now when my sensor detects the recquired square it has it show that on a led and so on...so for more than 9 mines im lost

 

[blueroomelectronics]

Still not much to go on, what have you built so far? What are you using to drive the displays?

 

[rebirth of sands]

fine..this is my plan i am using an at89c51 for my project and i want to take the least no of ports for the display so i am thinking of using a 4511 for the display and multiplex them to save more ppins for other uses

 

[3v0]

Post your schematic. It may not be done but it will give an idea of where you are at.

Same goes for code.

 

[matk95]

if u are using a pic then conect bouth severn segments to the same severn pins then conect two more pins to the comen conections e.g coman cathode . the swich the first one to low and display the first part of the number then swich the outher low and do the second part of the number


**broken link removed**

like this but with two

you cold use the 4511 to save more pins just use 4 mcu pins to controle the 4511 and then conect the 4511 where the 7 pins are

 

[blueroomelectronics]

fine..this is my plan i am using an at89c51 for my project and i want to take the least no of ports for the display so i am thinking of using a 4511 for the display and multiplex them to save more ppins for other uses

The 4511 will work, you can mux em and use only 5 output pins or not muxed will require 8.

 

[rebirth of sands]

yeah.... but i want the schematic for that....and the schematic that i am using is

 

[ericgibbs]

yeah.... but i want the schematic for that....and the schematic that i am using is

hi,
This is a version of your circuit.

Do you follow it OK?

EDIT: you may find the 2 EL lines easier for your program.

 

[rebirth of sands]

i get you...thank you everyone for helping me out.....
regards
rebirth of sands