In getting to know Raspberry Pi5 etc I came across the RP2040 .
Just curious as to if anyone used it or have some knowledge on it?

 

i got bunch of RP2040zero. have not yet played with them much but it is a mighty little thing. i think i got 10 or so for the price of single Arduino Uno.so far only tried IO access, display, encoder etc. now plan to make a small and cheap EIP adapter (slave). already have that on RPI4 but want to shrink it.

 

In getting to know Raspberry Pi5 etc I came across the RP2040 .
Just curious as to if anyone used it or have some knowledge on it?

Yes, we use the 2040 chip. The product is a small data acquisition unit, with USB and PoE. Works great.

Here's the PCB.

https://www.dropbox.com/scl/fi/1h73...0_A3.jpg?rlkey=3dx17aq025nyeypt0cko7f4rp&dl=0

We use the Wiznet 6100 ethernet chip.

 

Oeiginally my quest was to find a small processor for a sub miniature CNC system, I could not find a small/cheap enough system to run WIN3 & Mach3, so picked up a raspberry Pi5 to run Linux CNC, the Pi5 cannot do it evidentally due its I/O speed restrictions/handling and requires alternate I/O add on. method.
I was assured the RP2040 could, but I also need small/min CRT and KB, so going from here.

 

Max, have you looked at GRBL, I moved away from MACH3 on Windows a few years back because of its massive overheads. GRBL runs my lathe, mini-mill, 3D printer(s) and my laser cutter. I'm no expert but it's easy enough to get going, though, as always, YMMV.

 

What processor or host are you running it on?

 

Irv I got this from a search.
Yes, a Raspberry Pi 5 can be used to run a GRBL-based CNC system, but generally not by running the core, low-level GRBL firmware directly on the Pi's main CPU. Instead, it acts as a powerful host controller for a CNC machine.

 

What processor or host are you running it on?

A custom ESP32-S3 board I designed for another project that just happened to have the right interfaces. The main reason being wireless connectivity.

 

One of these ??

 

One of these ??

One of these modules, with 8Mb RAM, 16Mb Flash,on a custom board

 

One of these modules, with 8Mb RAM, 16Mb Flash,on a custom board

Does any of the custom boards come with KB and display interface?

 

No, as with the Arduino CNC Shield I use an old PC for KVM via USB or wirelessly.