--- 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" brand: "biqu" price: "B/.97" currency: PAB in_stock: true category: "Biqu" url: https://www.desertcart.com.pa/products/455900479-bigtreetech-ebb42-can-bus-with-max31865-adapter-board-hot-end store_origin: PA region: Panama --- # Supports CAN & USB communication ARM Cortex-M0 STM32G0B1CBT64 MCU Onboard MAX31865 for PT100/PT1000 sensors 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 **Brand:** biqu **Price:** B/.97 **Availability:** βœ… In Stock ## Summary > πŸ”₯ Upgrade your 3D printing game 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 by biqu - **How much does it cost?** B/.97 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.com.pa](https://www.desertcart.com.pa/products/455900479-bigtreetech-ebb42-can-bus-with-max31865-adapter-board-hot-end) ## Best For - biqu enthusiasts ## Why This Product - Trusted biqu brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - β€’ **Compact Powerhouse:** Compact 40x40mm footprint with powerful 5A heating output and dual fan support for efficient extrusion. - β€’ **DIY-Ready Expansion:** Reserved I2C, RGB, and EndStop ports empower custom filament breakage detection and lighting mods. - β€’ **Robust Safety Design:** Enhanced ESD protection and isolated power circuits safeguard your mainboard from overheating and electrical damage. - β€’ **Seamless Connectivity:** Dual CAN & USB interfaces simplify wiring and firmware updates for a sleek, professional setup. - β€’ **Precision Thermal Control:** Integrated MAX31865 adapter supports 2/4-wire PT100/PT1000 sensors for ultra-accurate temperature monitoring. ## Overview The BIGTREETECH EBB42 CAN Bus Hot End PCB is a compact, feature-rich extruder controller board designed for 42-stepper motors. It integrates an ARM Cortex-M0 MCU, supports CAN and USB communication, and includes an onboard MAX31865 adapter for precise PT100/PT1000 temperature sensing. With advanced safety features like ESD protection and isolated power circuits, plus versatile expansion ports for DIY filament detection and RGB lighting, it’s the ultimate upgrade for Ender 3 and Klipper users seeking reliable, high-performance extrusion control. ## 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. ## 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 | |---------------|-------| | ASIN | B0B1MFXGTZ | | Best Sellers Rank | #17,492 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #239 in 3D Printer Accessories | | Date First Available | May 18, 2022 | | Item Weight | 1.76 ounces | | Item model number | 10200003422 | | Manufacturer | Octobigtree | | Package Dimensions | 3.82 x 2.28 x 1.34 inches | ## 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/41OtSeJYMtL.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/51hQUFZMH9L.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/51g0cYafJfL.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/51QN-IsR9ZL.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/51BjCG+tO3L.jpg) ## Available Options This product comes in different **Style** options. --- ## 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.com.pa/products/455900479-bigtreetech-ebb42-can-bus-with-max31865-adapter-board-hot-end](https://www.desertcart.com.pa/products/455900479-bigtreetech-ebb42-can-bus-with-max31865-adapter-board-hot-end) --- *Product available on Desertcart Panama* *Store origin: PA* *Last updated: 2026-09-22*