https://mellow.klipper.cn/#/board/fly_sb2040_v3_pro/README
RRF refers to this URL:Â http://teamgloomy.github.io/fly_sb2040_max_v3_general.htmlhttps://teamgloomy.github.io/fly_sb2040_pro_max_v3_general.html
- Supports CAN bus connection for stable data transmission with minimal latency and longer distances.
- CAN bus is compatible with all devices capable of running Linux, such as Raspberry Pi.
- Added support for RS232 connection, offering even more stable data transmission with minimal latency and longer distances, reducing disconnections.
- Onboard TMC2209/TMC2240 drivers for extruders.
- Integrated LIS2DW accelerometer.
- Added support for switching between 4.7K resistors (for NTC thermistors) or 1K resistors (for PT1000 sensors).
- Replaced MX3.0 terminals with new connectors supporting 15A current, peaking at 30A.
- LIS2DW’s INT1 and INT2 pins are connected to the microcontroller for user-level calibration.
- Rated 5A heating rod port.
- High voltage input limitations.
- Upgraded to a 3m CAN connection cable to prevent signal loss due to improper terminal crimping.
- Added support for MAX31865 version, originally only supporting PT100 sensors, now also supporting PT1000 sensors for higher requirements.
- Added 8-bit DIP switch for easier configuration without needing jumpers or soldering.
- Added two switches for toggling between RRF and Klipper CAN, Klipper CAN and RS232.
- Added fan board switch for toggling between DC and PWM fans, enhancing customer convenience.
- Added CAN interface for customer expansion with CAN modules.
- Max version adds 1612 chip for RRF fast scanning
Product parameters
Product Name: SB2040 V3 Board / SB2040Pro V3 Board
Product Use: Connects Klipper expansion devices via CAN bus/RS232
Product Type: Voron 2.4 R2 Trident Invisible Burner Print Head
Communication Method: CANBUS/USB/RS232
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