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[on:]

Hi guys,
I'd like to ask if I want to connect 4 seven segment displays to arduino : http://sell.lulusoso.com/selling-leads/687663/5082-7613-Seven-Segment-Display-circuit-diagram-unit-driver-Agilent.html


1) How are the wires should be ? 7 pins for outputs , 2 com , 1 for dot  >> I guess every one of the 7 pins should be connected to the SDA , but what about the SCL ??

2) if it's connected correctly, Do every pin (a,b,c,d,e,f,g) of the 7 need to have ( start transmission, and end transmission )
I mean do we consider each pin as a single slave?

3)Also , how to connect a button using this protocol ?
I'm really confused !!

Regards

[Reply #1 on:]

4) To connect any device using I2C protocl ,, how can I know where to connect the SDA & SCL ?
like leds, buttons , sensors .. etc

5) If I connect a button (address 1) and a led (address 2) using I2C protocol , how will the arduino differ that add1 for button and add2 for led ?
especially they're connected to the same line (SDA) ?

[Reply #2 on:]

Any Help Please  ?

[Reply #3 on:]

I believe this is a very basic 7 seg. display (note the price).
No time now but look at this:
http://www.kpsec.freeuk.com/counting.htm#drivers