2026-05-22 12:50 PM
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.
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2026-05-23 1:49 AM
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...
@loveforcircuits wrote:What connector systems are commonly used in STM32 embedded designs?
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.
2026-05-23 1:49 AM
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...
@loveforcircuits wrote:What connector systems are commonly used in STM32 embedded designs?
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.
2026-05-24 3:18 PM
JB Weld applied where the wires enter the back of the connector works well to keep individual wires from backing out. Just remember, JB weld is permanent.
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