Connector choice for STM32 based robot controller using an STM32F4 series board

[loveforcircuits]

I am working on an STM32 based robot controller using an STM32F4 series board. The system includes IMU, encoders, and multiple sensor modules. During vibration and movement, some jumper connections become unreliable. I am currently using standard Dupont wires for prototyping. However, repeated disconnects are causing unstable sensor readings. I want to move to more robust connector solutions for PCB to wire interfaces.
I am confused about which connector types are best for pin based headers. Should I use JST, Molex, or locking header connectors instead of Dupont? What connector systems are commonly used in STM32 embedded designs?
I also need something suitable for frequent assembly and maintenance.

[Andrew Neil]

Indeed, the so-called "dupont"-style flying leads are notoriously unreliable!

I suspect that most things sold as "dupont" are not actually made by DuPont...

 

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@loveforcircuits wrote:

What connector systems are commonly used in STM32 embedded designs?

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This really has nothing specifically to do with STM32 - it's just standard design for any electrical connections.

I suggest you look at what is used in similar commercial designs.

Try searching distributor catalogues for connectors designed for high-vibration environments.

You probably want connectors with some sort of latching mechanism.

Yes, JST & Molex are well-known manufacturers with wide ranges of connector products - I'm sure they will have something.

 

[Ozone]

I suggest you look at what is used in similar commercial designs.

Try searching distributor catalogues for connectors designed for high-vibration environments.

I would second that.

But add, not all commercial connectors are made equal.
The datasheet (yes, simple commercial connectors have datasheets, too) will tell you for how many plug / unplug events they are designed for.
Many connector used inside housed designs are rated for only a few dozen plug / unplug operations.
USB connectors are an example for a very different use case.

[Tesla DeLorean]

I find Schmart Jumper Wires to be better than Dupont ones.

I often use WIreWrap for prototypes as it gets a good metal-to-metal bond on the four corners of the posts and robust to pass around at the conference table.

https://schmartboard.com/jumper-wires/?sort=featured&price_max=16&page=2&fullSite=1