where is the specification of the 15-pin connectors on NUCLEO-32?

[WQ]

It seems a silly question but we couldn't find the specification of the 15-pin connectors on NUCLEO-32. We have looked the user's manual, schematic and BOM. The only things we knew is they look like double-sided header from the pictures, they are .100" pitch from the drawing in user's manual, and they are ATOM PH254015B-09303 in BOM. We don't know and couldn't find who are ATOM and what the p/n PH254015B-09303 is about. We need more information of these connectors such as the formal drawing, datasheet and specs when we try to use NUCLEO-32 in our application. Can somebody help? Thanks.

-WQ

[AScha.3]

15 pin ? the arduino conn. ?

se schematics...STM32 Nucleo (32 pins) schematics

https://www.st.com/en/evaluation-tools/nucleo-l432kc.html#cad-resources

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