{"product_id":"btt-ebb42-can-bus-klipper-expansion-pcb","title":"BTT EBB42 CAN bus Klipper Expansion PCB","description":"\u003cp\u003eKlipper users in the Voron and VzBot communities face challenges with bulky cable chains and complex wiring that can cause signal interference and print errors. Without a streamlined CAN bus expansion board, toolhead control remains inefficient and prone to connection issues.\u003c\/p\u003e\u003cp\u003eThe BTT EBB42 CAN bus Klipper Expansion PCB v1.2 is designed to simplify and enhance extruder motor control by consolidating wiring into a single CAN bus connection. Featuring an ARM Cortex-M0+ STM32G0B1CBT6 MCU running at 64MHz with FDCAN support, onboard TMC2209 stepper driver in UART mode, and integrated MAX31865 temperature sensor support for PT100\/PT1000 probes, this board is ideal for high-performance Klipper builds like Voron 2.4 and VzBot. Additional features include an onboard ADXL345 accelerometer for advanced motion sensing, multiple fan outputs, and versatile expansion interfaces including EndStop, I2C, and RGB lighting control.\u003c\/p\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVersion\u003c\/td\u003e\n\u003ctd\u003ev1.2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMCU\u003c\/td\u003e\n\u003ctd\u003eARM Cortex-M0+ STM32G0B1CBT6 64MHz with FDCAN bus\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStepper Driver\u003c\/td\u003e\n\u003ctd\u003eOnboard TMC2209 in UART mode, UART address: 00, Rsense: 0.11Ω\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOnboard Sensors\u003c\/td\u003e\n\u003ctd\u003eADXL345 Accelerometer, MAX31865 Temperature IC (PT100\/PT1000 support)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Voltage\u003c\/td\u003e\n\u003ctd\u003eDC 12V - 24V, 6A max\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLogic Voltage\u003c\/td\u003e\n\u003ctd\u003e3.3V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeating Interface\u003c\/td\u003e\n\u003ctd\u003eHotend (E0), max 5A output current\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFan Interfaces\u003c\/td\u003e\n\u003ctd\u003eTwo CNC fans (FAN0, FAN1), max 1A output current each\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eExpansion Interfaces\u003c\/td\u003e\n\u003ctd\u003eEndStop, I2C, Probe, RGB, PT100\/PT1000, USB Type-C, CAN Interface\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible Printers\u003c\/td\u003e\n\u003ctd\u003eVoron 2.4, VzBot, Klipper-based CoreXY builds\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003cp\u003e\u003cstrong\u003eWhy Upgrade?\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eReduces wiring complexity and weight on the extruder motor for Voron 2.4 and VzBot builds, improving motion precision.\u003c\/li\u003e\n\u003cli\u003eEnables reliable CAN bus communication to prevent intermittent connection failures common in bulky cable chains.\u003c\/li\u003e\n\u003cli\u003eSupports high-accuracy temperature sensing with MAX31865 for PT100\/PT1000 probes, enhancing thermal control.\u003c\/li\u003e\n\u003cli\u003eOnboard accelerometer allows advanced motion tuning and vibration compensation in Klipper firmware.\u003c\/li\u003e\n\u003cli\u003eCompatible with TMC2209 stepper drivers for quiet and smooth extruder operation.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eBest For:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eVoron 2.4 and VzBot builders upgrading to CAN bus extruder control.\u003c\/li\u003e\n\u003cli\u003eKlipper firmware users seeking streamlined wiring and enhanced sensor integration.\u003c\/li\u003e\n\u003cli\u003eCoreXY printer enthusiasts requiring advanced temperature and motion sensing capabilities.\u003c\/li\u003e\n\u003cli\u003eUsers replacing bulky cable chains with lightweight CAN bus connections.\u003c\/li\u003e\n\u003cli\u003eBuilders needing integrated support for PT100\/PT1000 temperature probes.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003ePair With the Right Filament\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThis expansion board supports precise extruder control and temperature monitoring, essential for consistent printing with a variety of filaments.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/supplies3d.shop\/collections\/pla-filament\"\u003ePLA Filament\u003c\/a\u003e — ideal for everyday printing with stable temperature control.\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/supplies3d.shop\/collections\/petg-filament\"\u003ePETG Filament\u003c\/a\u003e — benefits from accurate thermal management for better layer adhesion.\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/supplies3d.shop\/collections\/tpu-flexible-filament\"\u003eTPU Flexible Filament\u003c\/a\u003e — smooth extruder operation enabled by TMC2209 drivers improves flexible filament handling.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"West3D 3D Printing Supplies","offers":[{"title":"Default Title","offer_id":52735630901542,"sku":"BTT0812","price":17.98,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1004\/1986\/2822\/files\/btt-ebb42-can-bus-klipper-expansion-pcb-with-max31865-west3d-printing-btt-125704.webp?v=1773259402","url":"https:\/\/supplies3d.shop\/products\/btt-ebb42-can-bus-klipper-expansion-pcb","provider":"SUPPLIES3D","version":"1.0","type":"link"}