Klipper CAN BUS Guide - BIGTREETECH E3EZ with Hermit Crab 2 (Same as EBB) 

I have adjusted description take a look there.

@@hobbyistnotes Great, thanks :) As you probably also have found out the Biqu documentation is really poor when it comes to the wiring. The Canbus cable has a red and black wire. As far as I can see in the Biqu pictures it is for 24v? Do you know if the usbc power cable can be omitted if these wires are connected to power on the psu or mainboard?

@@innercitydk You don't need USB-C, whole idea of CAN in this product is that you have 4 wires going via included wire, two of them are CAN L/H and another two are power from the printer power supply.

@@hobbyistnotes thank you, and the red and black is connected to 24v right?

@@innercitydk Input voltage is 12v - 24v as we have some printers using 12v PSU

Hope you will figure it out. I remember how much time I have spent 1st time configuring CanBus with my Mellow RP2040. Now tools are better and ton of videos how to make it work. At the end journey of struggling and figuring out is part of RepRap movement.

@@hobbyistnotes OK got a chance to try this and it worked good up until the point where I have flashed everything and see both devices. I changed printer.cfg printer type to core xz and changed thermistor to the value the revo hotend uses and I keep getting min max error message for temp. I plug a normal sensor on the board for the hotend and its fine and shows value of temp. I wanted to test the fans and sensor before I mount on printer. Not sure what I am doing wrong. Again I am new to canbus and Klipper. Any help would be appreciated. Looking to use this on Most expensive enderwire, lol, as your other video got me moving to this point. I just noticed one thing but not sure it matters. When displaying devices after commenting the Manta Board UUID out it shows both as Klipper not like yours where one is Katapult. The UUID's are different and were gotten for each board before flashing.

@@2muchscott At the end when you are done both boards have to be Klipper (17:23) in Klipper CAN devices viewer and in my case it was showing Katapult cus we still had to flash klipper via CAN as last step of the video. If your temp values are working properly with regular thermistor but do not work with REVO may be something wrong with your REVO thermistor or it's connection, for me it's very hard to help you cus I don't see your printer config. Check Revo's thermistor resistance with multimeter the value have to change if you heat it with your hand.

@@hobbyistnotes OK, I started over and was able to get both devices and names look correct. The printer config file I have is the one I pasted in using your video as a guide so maybe that is the issue. I uncommented out the Extruder section and was expecting to be able to test the thermistor. I had removed the 5 volt jumper prior to doing this and just using can cable. Again I am new to klipper so this weekend is my weekend to research a bit more. I appreciate helping me setup the canbus though.

Update, Pasted in BTT Sample Canbus config for the RP2040 board and changed the reference to EBBcan to what I named the MCU which was SB2209 and I am getting temp from hotend! Part Cooling Fan works as well. Im guessing I have a bit more digging to do. If you have an example config for your enderwire using this manta board and RP2040 card and could share it I would appreciate that. Again, thanks for all you have done! I really appreciate this.

I am not confident but those looks like JST SH connector to me, not sure about the size. I personally would try 1.0mm size, but it's just a guess.

You can follow steps just use build settings with pinout for your boards, here is a good topic for your board: www.teamfdm.com/forums/topic/672-how-to-use-can-toolhead-boards-connected-directly-to-octopus-octopus-pro-on-canboot/

Nah... I like teCH44444!