--- product_id: 455900479 title: "- BIGTREETECH EBB42 CAN Bus with MAX31865 Adapter Board Hot End PCB Board Filament Break Blockage Detection for 42 Stepper Motor Extruder Nozzle Head Tool for Blv Ender 3 for Klipper Support PT1000" price: "R1089" currency: ZAR in_stock: true reviews_count: 9 url: https://www.desertcart.co.za/products/455900479-bigtreetech-ebb42-can-bus-with-max31865-adapter-board-hot-end store_origin: ZA region: South Africa --- # Dual CAN/USB communication with 120Ξ© termination 42-step motor precision Onboard MAX31865 for PT100/PT1000 temp sensing - BIGTREETECH EBB42 CAN Bus with MAX31865 Adapter Board Hot End PCB Board Filament Break Blockage Detection for 42 Stepper Motor Extruder Nozzle Head Tool for Blv Ender 3 for Klipper Support PT1000 **Price:** R1089 **Availability:** βœ… In Stock ## Summary > πŸ”₯ Upgrade your Ender 3 with smart precision and fail-safe power! ## Quick Answers - **What is this?** - BIGTREETECH EBB42 CAN Bus with MAX31865 Adapter Board Hot End PCB Board Filament Break Blockage Detection for 42 Stepper Motor Extruder Nozzle Head Tool for Blv Ender 3 for Klipper Support PT1000 - **How much does it cost?** R1089 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.za](https://www.desertcart.co.za/products/455900479-bigtreetech-ebb42-can-bus-with-max31865-adapter-board-hot-end) ## Best For - Customers looking for quality international products ## Why This Product - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - β€’ **Robust Safety Design:** Enhanced ESD protection and isolated power circuits prevent damage from electrical faults and overheating. - β€’ **Seamless Connectivity:** Flexible CAN bus or USB communication simplifies wiring and firmware updates with onboard BOOT and RESET buttons. - β€’ **Precision Motion Control:** Supports 36/42-step extruder motors for ultra-smooth filament feed and superior print quality. - β€’ **Expandable & DIY Friendly:** Reserved I2C interface and RGB ports empower custom filament breakage detection and lighting mods. - β€’ **Advanced Thermal Monitoring:** Integrated MAX31865 chip enables accurate PT100/PT1000 temperature sensing for reliable hotend performance. ## Overview The BIGTREETECH EBB42 CAN Bus Hot End PCB is a cutting-edge extruder adapter board designed for 42-stepper motors, featuring onboard MAX31865 for precise PT100/PT1000 temperature sensing. It supports both CAN bus and USB communication, simplifying wiring and firmware updates. With enhanced safety circuits including ESD protection and isolated power, plus reserved expansion ports for DIY filament detection and RGB lighting, it’s the ultimate smart upgrade for BLV Ender 3 and Klipper users seeking reliability and customization. ## Description Product parameters1. Appearance size: 40mm*40mm2. Installation size: hole spacing 31mm*31mm, M3 screw hole*43. Microprocessor: ARM Cortex-M0 STM32G0B1CBT64. Input voltage: DC12V-DC24V 9A5. Logic voltage: DC 3.3V6. Heating interface: heating rod (E0), maximum output current: 5A7. Onboard sensor: ADXL3458. Fan interface: two CNC fans (FAN0, FAN1)9. Maximum output current of fan interface: 1A, peak value 1.5A10. Expansion interface: EndStop, I2C, Probe, RGB, PT100/PT1000, USB interface, CAN interface11. Motor drive: onboard TMC220912. Drive working mode: UART13. Stepper motor interface: EM14. Temperature sensor interface: 1 channel 100K NTC or PT1000 (TH0), 1 channel PT100/PT1000 optional15. USB communication interface: USB-Type-C16. DCDC 5V output maximum current: 1APrecautions1. When the PT1000 is not used for the TH0 interface, the jumper cap cannot be inserted on it, otherwise the 100K NTC cannot be used normally2. When using CAN communication, you need to see if it is used as a terminal. If it is a terminal, you must plug the jumper cap at the 120R position;3. When DIY crimping, you need to pay attention to the line sequence, and do DIY according to the Pin diagram to avoid the power line being reversed or connected to the CAN signal, which will cause the module to burn;4. When programming the program through the USB port, if there is no external power supply, you need to short the VUSB jumper cap to provide the module with working voltage;5. The load current of the heating rod and the fan interface should not be greater than the maximum withstand current to prevent the MOS tube from being burned out. Review: Awesome and compact. - Great little board. Used on a Sovol sv08 to convert to Can communication. Connectors used on this board are 2.5 pitch which makes a whole lot of difference with ease when comparing to the 1.5 pitch on the Sovol stock board. Easier to crimp in case you pull out a wire when disconnecting a connector and way easier to crimp. Simple installation when following the manual on the btt GitHub page. Though, having some experience connecting to your printer host via ssh and using the Linux command line helps. The heater terminals are also larger than the ebb36 board which also makes it easier to install the heater wires and using ferrule connectors. Using the board to connect an eddy dual, x endstop, filament sensor, extruder fan, two part cooling fans spit into one connection, neopixel leds, heater, and thermistor. Still have a few pins to use if something comes to mind. Good buy. Review: one of my favorite upgrades !!!!!!!! - what a fantastic board and idea! this thing saves so many wires and is abundantly capable ## Features - Smart Upgrade: Onboard MAX31865, support 2-wire/4-wire PT100/PT1000 selection, support CAN or USB communication, among which CAN terminal resistance 120R can be selected by jumper cap, and reserved CAN expansion interface, reserved RGB interface , to meet the lighting needs - Easy to Use: It is a 36-step (42-step) motor extruder nozzle adapter board, which can communicate through USB or CAN, which greatly simplifies wiring. BOOT and RESET buttons are reserved on the motherboard, users can enter DFU mode through USB to update the firmware - Superior Security: The EBB series has been optimized in multiple dimensions in terms of security. USB power-on is selected by jumper cap, which effectively isolates the DC-DC and USB 5V of the main board, and increases the protection circuit of the thermistor part to avoid the burning of the main control chip due to the leakage of the heating rod. The USB port adds an ESD protection chip to prevent the main control from being damaged. Electrostatic breakdown of the USB port - Rich Expansion Functions: I2C interface is reserved. This port can also be used for material breakage, material blocking detection, or DIY operations for other functions. The factory is equipped with terminals, female reeds, double-way studs and screws for Meet the DIY needs of customers - About Product Question: Q: When updating firmware, it may be a risk that the heater sticks keep heating up A: please pay attention to disconnect the main power VIN of the hotend when using the DFU of Type-C port to update the firmware, or ensure that the firmware update is completed soon and goto the normal working mode. Never keep MCU in DFU mode for a long time when the main power supply and hotend are connected ## Technical Specifications | Specification | Value | |---------------|-------| | Customer Reviews | 4.3 out of 5 stars 37 Reviews | ## Images ![- BIGTREETECH EBB42 CAN Bus with MAX31865 Adapter Board Hot End PCB Board Filament Break Blockage Detection for 42 Stepper Motor Extruder Nozzle Head Tool for Blv Ender 3 for Klipper Support PT1000 - Image 1](https://m.media-amazon.com/images/I/61ecALsllzL.jpg) ![- BIGTREETECH EBB42 CAN Bus with MAX31865 Adapter Board Hot End PCB Board Filament Break Blockage Detection for 42 Stepper Motor Extruder Nozzle Head Tool for Blv Ender 3 for Klipper Support PT1000 - Image 2](https://m.media-amazon.com/images/I/71U-Fk20BiL.jpg) ![- BIGTREETECH EBB42 CAN Bus with MAX31865 Adapter Board Hot End PCB Board Filament Break Blockage Detection for 42 Stepper Motor Extruder Nozzle Head Tool for Blv Ender 3 for Klipper Support PT1000 - Image 3](https://m.media-amazon.com/images/I/71NOsD2cxzL.jpg) ![- BIGTREETECH EBB42 CAN Bus with MAX31865 Adapter Board Hot End PCB Board Filament Break Blockage Detection for 42 Stepper Motor Extruder Nozzle Head Tool for Blv Ender 3 for Klipper Support PT1000 - Image 4](https://m.media-amazon.com/images/I/71iLLqkhazL.jpg) ![- BIGTREETECH EBB42 CAN Bus with MAX31865 Adapter Board Hot End PCB Board Filament Break Blockage Detection for 42 Stepper Motor Extruder Nozzle Head Tool for Blv Ender 3 for Klipper Support PT1000 - Image 5](https://m.media-amazon.com/images/I/71eaKQBsmlL.jpg) ## Available Options This product comes in different **Style** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Awesome and compact. *by F***A on June 14, 2025* Great little board. Used on a Sovol sv08 to convert to Can communication. Connectors used on this board are 2.5 pitch which makes a whole lot of difference with ease when comparing to the 1.5 pitch on the Sovol stock board. Easier to crimp in case you pull out a wire when disconnecting a connector and way easier to crimp. Simple installation when following the manual on the btt GitHub page. Though, having some experience connecting to your printer host via ssh and using the Linux command line helps. The heater terminals are also larger than the ebb36 board which also makes it easier to install the heater wires and using ferrule connectors. Using the board to connect an eddy dual, x endstop, filament sensor, extruder fan, two part cooling fans spit into one connection, neopixel leds, heater, and thermistor. Still have a few pins to use if something comes to mind. Good buy. ### ⭐⭐⭐⭐⭐ one of my favorite upgrades !!!!!!!! *by A***O on July 13, 2024* what a fantastic board and idea! this thing saves so many wires and is abundantly capable ### ⭐⭐⭐⭐⭐ Easy entry to CANBus for FDM printers *by E***O on September 17, 2023* I had to redo the wiring on my Ender 3 after making some major upgrades - moved to direct drive from a remote feed system, including an Orbiter - and had some REALLY long wire runs back to my control boards. I run Klipper so the option of using only four wires to bring all my hot end controls back to my Raspberry Pi sounded great. I mounted this on a point behind my print head as the board will not fit on the back of the NEMA14 motor like it would on a NEMA17. It did take a bit of programming work to get the CANBus set up in my printer config but now it is controlling the following: two fans, extruder motor, extruder heater, BLTouch, hotend LED and filament runout sensor. --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.co.za/products/455900479-bigtreetech-ebb42-can-bus-with-max31865-adapter-board-hot-end](https://www.desertcart.co.za/products/455900479-bigtreetech-ebb42-can-bus-with-max31865-adapter-board-hot-end) --- *Product available on Desertcart South Africa* *Store origin: ZA* *Last updated: 2026-05-31*