Pin contact to CN11 / CN12 of Nucleo boards

[LysAn]

Dear people,

 

I use these little square pins and headers (see image), to obtain access to the contacts of CN11 / CN12 of Nucleo Boards, e.g. H723ZG, or F756ZG?. However these are impractical, because movement or vibration might lead to interruptions. And I want to avoid soldering, for specific reasons.

Ideally would be some sort of connector that makes good electrical contact and can be coupled/decoupled easily. Can someone suggest an efficient and ergonomic solution?

 

Thank you

 

[Andrew Neil]

Those positions are designed for soldering standard pin headers - so soldering would seem the obvious solution.

[TDK]

Press fit header pins exist. I'd use those, and break off 1-2 pins as needed.

https://www.adafruit.com/product/5938

 

[Andrew Neil]

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@LysAn wrote:

I want to avoid soldering, for specific reasons.

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To give relevant suggestions, It would help to explain what those reasons are

 

Have you considered "pogo" pins?

https://thepihut.com/products/pogo-pins-needle-head-10-pack

https://thepihut.com/products/pogo-pins-spear-head-10-pack

[Gyessine]

Hello @LysAn 
Most of the ST morpho pins are also connected to Arduino® UNO R3 connector pins.
Check the product datasheet and schematics (ex: nucleo-H723 schematics MB1364) to determine if the peripheral you are using is linked to a pin that also has an Arduino pin, as these pins are more compatible with the type of wire you are using.

if not, you can consider @TDK and @Andrew Neil proposed solutions
BR
Gyessine

[LysAn]

Thank you all for your suggestions. They pins I am looking for are specifically those for the external power supply. I am aware, that for the signal pins, the Arduino shield can be used. I wish the Arduino shield had a convenient access point for supplying the STM32 with power.

Best regards

[Andrew Neil]

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@LysAn wrote:

I wish the Arduino shield had a convenient access point for supplying the STM32 with power.

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You have the 3V3 and 5V pins on the Arduino headers.

Still unclear why soldering is unacceptable?

[LysAn]

Yes, but the 3V3 and 5V pins on the Arduino headers are for powering external periphery, right? And I want to power the μCU via the external 5V. These pins on the CN11 are a bit clumsy to solder there, the tin somehow doesn't attach well there and the pins are almost touching each other. It is not so ergonomic.