BigTreeTech
BTT IO2CAN
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BIGTREETECH IO2CAN V1.0 adds a CAN interface to 40-pin GPIO host boards using the MCP2515 SPI-to-CAN controller path documented by BIGTREETECH.
Why use IO2CAN instead of a USB CAN adapter?
- Uses the host board’s 40-pin GPIO/SPI header, keeping the external USB ports free.
- Hardware selector supports Raspberry Pi/CM4 orientation and BIGTREETECH CB1 orientation per the official BIGTREETECH setup guide.
- Good fit when your Klipper host is already mounted close to the electronics bay and you want a compact CAN HAT-style board.
Specifications
- Model: BIGTREETECH IO2CAN V1.0
- CAN controller path: MCP2515 SPI-to-CAN setup documented by BIGTREETECH
- Host interface: 40-pin GPIO header for Raspberry Pi / CM4-style hosts or BIGTREETECH CB1 setups
- Hardware setting: RPi/CM4 and CB1 selector switch positions are different; follow the official IO2CAN guide before powering up
- Typical Klipper CAN bitrate: 500000 in BIGTREETECH’s example configuration
Intended use
Use this as the host-side CAN interface for Klipper printers running CAN toolhead hardware such as an EBB36 CAN Toolhead Board, BTT EBB SB2240 CAN V1.0, or BTT 3m CAN Bus Cable wiring path. For a host SBC in the same ecosystem, see the BTT Pi V1.2.
Gotchas
- This is not a USB-to-CAN adapter; if you specifically need USB, compare it against the U2C CAN Interface Board.
- Software setup is required. BIGTREETECH’s guide uses SPI, MCP2515 overlay settings, CAN network configuration, and Klipper’s
canbus_query.pyworkflow. - CAN toolhead boards, cables, and the host computer are separate unless explicitly included in your cart.
“Perfect can hat for the application”
Shipping & Returns
Returns:
Thank you for purchasing from dfh.fm. I want you to be completely satisfied with your purchase. If for any reason you are not satisfied, you may return your purchase within 60 days of the original purchase date.
Defective items: Please inspect items upon receipt. If you receive a defective item, you may return it for a full refund or replacement within 90 days of the original purchase date. Please contact me to initiate a return for a defective item.
Non-defective items: If you are not satisfied with a non-defective item, you may return it for a refund within 30 days of the original purchase date. A 20% restocking fee will be deducted from the refund amount, to offset the time and inconvenience, as I am the sole employee processing the return and restocking the item. The fee also covers the costs associated with processing the return. Refunds for non-defective items will be issued through the original payment method.
Preordered items: Due to the nature of preorders, delivery dates are subject to change. Please keep in mind that, If you have preordered an item, it is not eligible for a refund until after it has arrived at the store. Once the item arrives at the store and is inspected, you may request a refund within 30 days of the original purchase date. Please note that refunds for preordered items may take up to 10 days to be issued.
To initiate a return, please open a ticket on the shop’s discord channel, with your order number and the reason for the return. We will provide you with further instructions on how to return your purchase.
Thank you for shopping with us. If you have any questions or concerns, please don't hesitate to contact me, via Discord.
Order alterations and cancellations:
Once an order has ben submitted, no alterations can be made. This includes adding or removing items or canceling orders. You are welcome to return an order, once you have taken receipt, following the returns procedure listed above.
Shipping:
US Shipping is via UPS or USPS. The way it is set up shows the least expensive options for standard, priority and express shipping. I can not take special requests for specific carriers at this time.
International shipping is mostly UPS, as I utilize Zonos/UPS integration to tally extremely accurate import and shipping costs.
I require a telephone and email with international orders and you must make yourself available to the carrier or your customs, should they require more information. If you are unreachable and the package is discarded or rerturned, I will not be responsible for rerturning your shipping cost.
If there is a problem with an international order, it is my choice to refund part or all of the order, or send a replacement.
Addresses are verified through Shopify, but the customer is still responsible for inputting their address in the correct format. Any returns or lost shipments, due to incorrectly addressed packages, are the responsibility of the customer.
