SKR-Pico VS BIGTREETECH-SKR-mini-E3

That's a question outside my scope of knowledge. I can tell you that it's a microcontroller used to control a 3D printer. There are 5 NEMA 17 stepper motors, a hot end for melting and extruding the filament (around 200 Celsius) and the build plate is heated (60 - 70 Celsius). Here is a link to the manufacturer's GitHub if you're interested in checking it out: https://github.com/bigtreetech/SKR-Pico/tree/master/Hardware

https://github.com/bigtreetech/SKR-Pico/blob/master/Klipper/Images/wiring_uart.png they have the wires backwards.... I see a lot of things like that. That's just different from what is shipped. Forget about the fact that the wire is plugged in backwards, what is shipped to the customer is two reds, a black, one green and one yellow. There is no blue. That's what I feel like right now: I'm following instructions/directions with a blue wire and there was no blue wire in the box...

I have a sonic pad that I have working on one printer that uses an aquila motherboard so I know the sonic pad works. I just got an SKR Pico and installed it in a different printer. I flashed the firmware and with klipper-USB.uf2 from https://github.com/bigtreetech/SKR-Pico/blob/master/Klipper/README.md

Did you go through the steps here for building the firmware? https://github.com/bigtreetech/SKR-Pico/blob/master/Klipper/README.md

The SKR-Pico is very well-documented on the BigTreeTech github page

I'm looking around for specs on maximum power/current draw for the SKR Pico run at 24V. Unfortunately, the documentation is pretty slim (link to BTT Github for SKR Pico), only mentioning 0.8A draw on the stepper drivers without additional cooling in the user manual. I'm concerned that the board may not be capable of pulling enough power for my Gulf Coast Robotics heated bed, which lists a rating of 250W @ 24V (nearly 10.5A). I also have a Mosquito hot end, which lists a 50W heater, plus the motors drawing a total of over 40W, so I'm likely pulling over 350W, with running my SKR Pico, Pi Zero 2W, and touchscreen off the same PSU. (Pi and touchscreen were powered via UART cable off the Pico.)

Switching over your config should be pretty straightforward, you'll just be changing the [mcu] section (obviously) and all the pin assignments. BigTreeTech boards are really well-documented and both the SKR-Mini and the SKR-Pico include excellent pinouts and schematics as well as sample Klipper configs on their github pages.

Has anyone powered that board (Le Potato AML-S905X-CC-V1.0-A) by applying +5vdc to GPIO pins #2 and #4 (and ground to pin #6) as described by BTT here or page 10 of the BTT Octopus manual here?

Last week I ugraded the mainboard to a BTT SKR mini E3 v3.0, and I just used the "firmware-USB.bin" from the GitHub page to flash that board, and I updated the pin names on the printer.cfg for my printer using the example on that same GitHub page. Everything is working well, the printer in producing good parts like it did before.

I went with this following the findings in this thread https://github.com/bigtreetech/BIGTREETECH-SKR-mini-E3/issues/658

Disconnect 2 wires and hook it up to the Z-stop. Will probe, but it hovers about 25mm off the bed even when the z axis is brought all the way to 0. It will not go to negative values. Tried both the BLtouch and BLtouch-for-z-homing firmwares from here(https://github.com/bigtreetech/BIGTREETECH-SKR-mini-E3/tree/master/firmware/V3.0/Marlin) but no luck

At this point I've narrowed it down to the Klipper firmware being sent over to the Mini and after it boots. Looking at BTT's github, it is included in Klipper now. So I used the build scripts there through KIAUH. Set up the information to send it over USB and it flashes without error. I tried with Serial USART1 PA10/PA9. From the printer.cfg

at some point, I was also trying to update the firmware. I have a BL touch installed at the same time so I tried to use the V3.0 Marlin firmware (https://github.com/bigtreetech/BIGTREETECH-SKR-mini-E3/blob/master/firmware/V3.0/Marlin/firmware-ender3-bltouch.bin). I have no idea if it ever updated the firmware as there was never anything indicating it was installing. I assume I put it on a microSD, and plug it into the motherboard right?

I recently made my first upgrade on my ender-3, a Bigtreetech SKR mini e3 v3. I also bought the official Creality CR touch and installed it onto my printer. I plugged the cable into the adequate spot on the board and unplugged the cable from the Z endstop switch. I then downloaded the firmware (firmware-ender3-bltouch-for-z-homing.bin) from this page: "https://github.com/bigtreetech/BIGTREETECH-SKR-mini-E3/tree/master/firmware/V3.0/Marlin" and uploaded it to my printer.

Pre-compiled firmware. (GH)