HELP Me connect between rotary 2 poles 6way and Digit Numeric

R

Roby86

New Member

• Mar 7, 2009

• #1

Hi I am just beginner Please help me connect between rotary 2 poles 6way and Digit Numeric Display. What I have to do? If anything I need to buy?

Thank you

 

Last edited: Mar 7, 2009

Mike_2545

Super Moderator

• Mar 7, 2009

• #2

What do you want to do?

You say you have a 2 pole 6 position switch.you have to be more specific

 

R

Roby86

New Member

• Mar 8, 2009

• #3

connect to Digit numeric

Hi Mike Hope you are ok
Thanks you for your help.
I want to connect between rotary 2 poles 6way and Digit Numeric Display (see Word doc). attached here

Thank you
Roby

 

Attachments

• Rotatodigit.doc

  173.5 KB · Views: 122

K

KMoffett

Well-Known Member

• Mar 8, 2009

• #4

I think this is about the simplest, with passive components. A Binary-to-7 Segment decoder chip and a few diodes would also work.

Ken

 

Attachments

• Switch Diodes to 7 Segment.gif

  9.5 KB · Views: 173

Last edited: Mar 8, 2009

R

Roby86

New Member

• Mar 8, 2009

• #5

Hi Ken
Thank thank you so much
can you tell me
What can of diodes i need to use ?
Zener diodes or signal diodes ?
and what about Resistor (for 5v)
i need to use
I am sorry I am just beginner but i want learn )
Thanks
Roby

 

K

KMoffett

Well-Known Member

• Mar 8, 2009

• #6

The diodes can be common signal types, like 1N4148. The resistor values will depend somewhat on the Vf (forward voltage drop) of the LED digit. Not critical...somewhere between 120Ω and 330Ω. Figure: (4.4-Vf) / 0.02

For the digit, if you could only get a "common-anode" type, just reverse the polarity of all the diodes, and swap the +5V and common.

ken

 

Last edited: Mar 8, 2009

R

Roby86

New Member

• Mar 9, 2009

• #7

Cooooool
Tanks Ken
i going to enjoy
keep doing great job
Take care
Roby