💍 BIGTREETECH EBB36 EBB42 CAN Tool Board is an advanced nozzle adapter board specifically engineered for use with the 42 stepper motor in 3D printing applications. Developed by the innovative team at Shenzhen Big Tree Technology Co., Ltd, this board enhances communication options through both USB and CAN BUS, significantly streamlining wiring complexities.
🔧 This board is tailored for compatibility with the Klipper firmware, making it an ideal choice for enthusiasts seeking to elevate their 3D printing projects. Among its various features, it boasts:
- Firmware Update Capability: Users can easily update the firmware using the BOOT and RESET buttons via DFU mode through the USB connection.
- Enhanced Protection Mechanisms: An added protection circuit for the thermistor guarantees that the main control chip will not be damaged by potential leakage currents from the heating rod.
- Customizable Thermistor Selection: The board enables users to choose the pull-up resistor values for thermistors via jumper wires, effectively supporting the PT1000 configuration (2.2K pull-up resistors) for personalized setups.
- Isolated Power Management: To ensure safety during operation, dedicating a jumper cap to the USB connection activates power while isolating the main control board’s DC-DC power from the USB's 5V source.
- I2C Interface Availability: The board comes with a reserved I2C interface that allows for functionalities such as filament breakage and clog detection, enabling further DIY enhancements.
- Reverse Voltage Protection: Anti-flyback diodes are integrated on the heating rod and fan ports, shielding the MOS tube from potential damage caused by reverse voltage spikes.
- Power Connection Safety: An anti-reverse connection protection feature on the power interface safeguards the motherboard against damage from incorrect wiring during DIY setups.
- Onboard MAX31865: This chip supports both 2-wire and 4-wire configurations for PT100/PT1000 thermistors, providing users with additional flexibility.
- Enhanced Communication Options: Users can select between communication through CAN or USB, with a 120R terminal resistor for CAN chosen via jumper caps, along with dedicated expansion interfaces.
- ESD Protection: The incorporation of an ESD protection chip on the USB port protects the main control board from damage due to static electricity.
- DIY Accessories Included: The adaptor board is furnished with essential terminals, female reeds, double-way studs, and screws, fulfilling a wide range of DIY requirements.
🧩 Specifications:
- External Dimensions: 40mm x 40mm
- Installation Dimensions: Hole spacing 31mm x 31mm, with 4 M3 screw holes
- Microprocessor: ARM Cortex-M0 STM32F072C8T6, running at 48MHz
- Input Voltage: DC 12V-DC 24V, 9A maximum
- Logic Voltage: DC 3.3V
- Heating Interface: Heating Rod (E0), with a maximum output current of 5A
- Onboard Sensor: ADXL345
- Fan Interfaces: Supports two CNC fans (FAN0, FAN1)
- Maximum Fan Interface Current: Normal current up to 1A, peak current at 1.5A
- Expansion Interfaces: Includes EndStop, I2C, Probe, RGB, PT100/PT1000, USB, and CAN Interface
- Motor Drive: Onboard TMC2209
- Driver Working Mode: UART
- Stepper Motor Interface: EM
🧩 In summary, the BIGTREETECH EBB36 EBB42 CAN Tool Board combines advanced features with enhanced safety functions, making it a remarkable choice for those looking to elevate their 3D printing experience with greater functionality and reliability.
