Espressif ESP32C3 RUST DevKit - Bad hardware production batch, or is it a design mistake?

[tyethgundry]

Hey, not got any traction in the rust forum category, so bringing this question to the hardware category instead.

viewtopic.php?t=46332

Just got an espressif esp32c3 Rust devkit, but it doesn't fit standard 2.54mm male header pins in the holes.
Instead only thin stamped metal plate pins fit like those on Stacking Header pins (same pin spacing but 1/3 of cross sectional area).

IMG_20250806_190940_730 (Custom).jpg (1.45 MiB) Viewed 268 times

The drilled holes are clearly below tolerance.

Can anyone confirm if this is a known problem, or if it was possibly just a bad batch?

There is no official contact method for espressif in this regard (maily due to having to select a product from the dropdown that doesn't list the rust devkit), the same goes for the retailer lacking a method for contacting Espressif, and I was advised by the retailer to reach out on the ESP32 forums.

The only info I have is a relabelled anti-static bag, with C19379-001 and 2025-04-24 listed in addition to the retailers info.

[AloePacci]

I am not inside espressif, but i think is a known issue.

They have uploaded several versions of this devboard with one of them stating the change of pin headers https://github.com/esp-rs/esp-rust-boar ... with-fixes

schematics and everything is included in the repo, so you can modify it and reproduce it as you want.

[tyethgundry]

I am not inside espressif, but i think is a known issue.

They have uploaded several versions of this devboard with one of them stating the change of pin headers https://github.com/esp-rs/esp-rust-boar ... with-fixes

schematics and everything is included in the repo, so you can modify it and reproduce it as you want.

Thank you for your reply, and the included info/link, much appreciated.

I'll feed that back and get a warning put on the product page.