How to mount M5stack modules to a metal plate
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Hello,
In my project, I’m using several M5Stack modules:- ATOMIC PoE Base W5500 with Atom S3 Lite
- Extend I/O 2 Unit (STM32F0)
- 1 to 3 HUB Expansion U006
- Unit RFID2 SKU: U031-B
I’ve noticed that all of these modules feature 5mm diameter holes. Are these intended to serve as clearance holes for screws?
Additionally, how should I attach the ATOMIC PoE Base W5500 with the Atom S3 Lite if the two 5mm diameter holes will be obstructed by the Atom S3 Lite?
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@galehill The "5mm" holes, actually 4.85mm, are for Lego pegs to attach the Atomic base to Lego Technic parts like beams. Most M5stack things have Lego-compatible mounting points.
If you look under the Atom Lite, there's a small yellow M2 hole marked on the label which you can use to fix the atom to the atomic base from below. There's a M2-sized hole in the atomic base. Just screw through the atomic base from below, into the atom label and there's a thread inside.
M5stack used to supply a M2 hex-headed bolt of the correct length and a little Allen key to mount the atom on the base.
But usually just mounting the atom on the atomic base pins is enough for most uses.
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