Would be better to post in the " Showcase " section of the forum. Thats why its there.

Pull-up resistors fitted: 3.3kΩ from GPIO4 to 3.3V on both boards

Why do you have a pull-up on a CAN interface ?

aliexpress, only had 25 in stock, and as you can imagine sold out quickly.
https://www.aliexpress.us/item/32568121 ... 4itemAdapt

When can we expect more in stock ?

Might be too late in your design, but I think this will be a simpler solution for you.

https://shop.m5stack.com/products/m5sta ... 2p4-module

I am really surprised of the amount of models Espressif has introduced over the last two years. Some of them are almost exactly the same of another model, but apparently there is a valid business case for it.

Ya, I dont know about all that. Why make 20 products along with all the R&D, support ...

I guess the main problem is that the P4 isn't made for wireless applications? So even if they make a WROOM for the P4, it would probably be combined together with the C6 or something

Yup, This post I added here addressed just that. This is what I am suggesting Espressif should be making, or ...

If you commit to purchasing 100,000 units, I'll bet they'll schedule fab time for you right away.

Thats kinda the point. They have made modules for all the others. Why not this one.

I am starting to get concerned that the writing is on the wall for a fall.
Like most, when great success comes it goes to their head and they screw things up.

IMHO they have been the best, but lately they are cranking out micros like potato chips. There is no way any company could keep up with ...

The ESp32 has a DAC, you should look into using that.

Saw this today, VERY shocked at espressif screwing up so bad if this is true.

https://hackaday.com/2026/03/21/esp32-w ... nt-8277730