16 pin seven segment

hi, i have a seven segment that its have 16 ,but i could not find how to use it whit arduino uno, i just fond 14 pin seven segment. please help me for setting up .

Post a link to its datasheet.

Unfortunately I dont buy it, i find it in a very old device.

this is a picture of 7 segment

Try Googling the part number printed on the side.

Get a 5V supply and a 1K resistor. Using Gnd as one probe and the resistor from 5V as the other, put the Gnd on one and touch the other pins one by one to see how they light up. What you find is one of these: there are 4 Gnd pins each of which is a common cathode for 1 digit, and 8 anodes which are shared among the 4 digits. Or, 4 common anodes, one per digit, and 8 cathodes shared beteen digits. The : and upper dot may be pins by themselves. For example, see page 3 here for common cathode per digit example with no : or upper dot. http://cdn.sparkfun.com/datasheets/Components/LED/1LEDREDCC.pdf If flip all the LEDs over, and left the rest the same, that would be common anode per digit.

That display appears to have come out of a clock. Old LED clocks generally multiplex the segments in two groups, using the power transformer to alternately display each group. You will have to test it as CrossRoads suggests, though this diagram may help you with the pin numbers: |500x233 (The pin numbers on the display of course, match those on the chip!)

ieee488: Post a link to its datasheet.

https://www.sparkfun.com/datasheets/Components/LED/7-Segment/YSD-439AY2B-35.pdf

Nimax5100: https://www.sparkfun.com/datasheets/Components/LED/7-Segment/YSD-439AY2B-35.pdf

And if you are able to find the datasheet, you surely were able to find the example code on Sparkfun's website as well.

Do you need everything handed to you on a silver platter?

ieee488: And if you are able to find the datasheet, you surely were able to find the example code on Sparkfun's website as well.

Do you need everything handed to you on a silver platter?

thank you sir