Waveshare SN65HVD230 CAN Board Connecting MCUs to CAN Network Features ESD Protection Communication Evaluation Development Board 3.3V

Does the CANBUS thing. Used two to create a CAN network between two microcontrollers.

I'm using this for a test setup with Klipper to toolhead CAN boards. With Klipper configured for a Raspberry Pi Pico in CAN bridge mode this works well. Here is the wiring, note that Tx/Rx are reversed from Uart1 using the default Klipper configuration:Connections to Waveshare CAN-Board:Can-Board Pico1 TX GPIO5 -- CAN TX (configured with Klipper menuconfig)2 RX GPIO4 -- CAN RX (configured with Klipper menuconfig)3 ground ground4 3.3V 3v3 outputYou use can use any RP2040 based board, I'm using a Waveshare RP2040-Zero.

this is the real deal, I have bought other transceivers that say they have the same chip but they don't transmit, they only receive. This one works perfectly transmit and receive. This one is more money but it is worth it.UPDATE: This is a bit overpriced, you can get real MCP 2551 transceivers for less money.

It works really well, but as others have stated, it has a 120 Ohm termination resistor on the board between CANH and CANL which you can't disable unless you physically remove it from the board. I would have much preferred if they used the two pins on the board as a jumper to allow you to enable/disable this resistor, but unfortunately, that is not the case. If you want to use more than one of these devices on the same bus, you would have to physically remove this resistor from the board.So yeah, definitely use this board if you are just going from one device to another, but if you need several devices, you can use this on one end, and just buy different ones for the other devices which don't have an 'always-on' resistor.

tiny little guy but works great with a Teensy, I don't think you need an additional resistor to terminate it, I think this one is internally already terminated but I may be wrong

After being frustrated by some of the slightly cheaper transceivers I’ve gotten here, which usually don’t work or I’ve had to modify, these guys work straight out of the box. I have no complaints.

The Waveshare SN65HVD230 CAN Board worked flawlessly with a Teensy 3.2 interfacing to a NMEA2000 network

5 stars for working flawlessly for send and receive, CAN and CAN FD. A little more expensive but well worth not have to deal with hardware issues.Knocked down to 3 stars for not having the option to solder on the headers (or not), solder on the terminal block (or not), and especially for populating the 120ohm CAN termination resistor. To have more than 2 nodes on a bus, or to add it to an existing bus, you have to de-solder that resistor. It's much easier to add these on than take them off.