Wiring 7 Segment display

[bitem2k]

Hi, how do you know which pin is which on a seven segment display?

The only mark i can see on the body is an " I ".

It doesnt seem to say on the spec page.
https://www.us.kingbright.com/images/catalog/SPEC/SA04-12GWA.pdf

Thanks very much.

 

[picasm]

It does actually show the connections on the datasheet - although not very clearly.
If you look at the drawing showing the display from the front, it marks the underside pin numbers (1 - 5 and 6-10).
(It is similar to an ic pin numbering as it can fit in an ic socket)

The schematic drawing on the lower right side of the sheet shows the segments (a-g and DP that correspond with the other drawing)
a=10, b=9, c=8, d=5, e=4, f=2, g=3, DP=7

And the anode is connected to pins 1 and 6)

 

[House0Fwax]

The answers are there on the spec sheet.
As you look at the display from the front ( right way up ) Pin 1 is uppermost on the left, pin 5 is bottom left, pin 6 is lower right and pin 10 is top right.
If in doubt use a power supply and a series resistor then make your own diagram.

Oh, Picasm got there first.

 

[bitem2k]

Ok thanks alot.

 

[k7elp60]

Many times I have determined pin connections and type of display without a data sheet. I start with a 5V power supply and a 680 ohm resistor. I put the resistor in series with one power supply lead, connect it to one pin and then connect the other power supply lead to the remaining pins. I keep switching pins until a segement lights up. If one doesn't then I reverse the leads and start over. It doesn't take long to determing if it is CA or CC and the segement pins.