adafruit_support_mike wrote:That socket should work with the chip you linked.
I'm afraid we don't have a pinout for it ourselves, but if I remember correctly, the pins at the edge of the board stay in sync with the pins on the chip as you go around the package clockwise. You should only need to probe three or four connections to get the whole pattern.
However, I'm not sure what you mean by "probe three or four connections". Apologies for the ignorance - I am currently at the "I've hooked up some Arduino Uno boards to NeoPixels, LEDs, buttons, and potentiometers" stage, so I'm not sure how to go about doing what you describe. (I would be using this device to make some simplified versions of an arduino on tiny protoboards or to drive single NeoPixels to fit in small spaces, as opposed to designing my own arduino devices.)
If it's not too much trouble, would you happen to have a link to a tutorial or example video on what you're describing?