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Fly-SHT36-V3 Tool Board Documentation

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1. Preparations​

Hardware Checklist:

  • Tool Board: Fly-SHT36-V3
  • Host:
    Host Compatibility Notice
    • Recommended Models: Fly-PI-V3, Raspberry Pi 4/5, and other standard hosts
    • Unsupported Models: Redmi phones, WiFi dongles & set-top boxes, various non-standard modified hosts
    • Important Note: Using modified hosts may cause system instability, functional anomalies, or inability to operate normally
  • Data Cable: One Type-C data cable
  • Connection Method (Choose One):
    • CAN Connection: Requires a UTOC module or a mainboard flashed with USB-to-CAN bridge firmware
    • RS232 Connection: Requires a UTOR module or a mainboard with native RS232 support (e.g., D8, D8-PRO, C8P)
  • Power Supply: 12V‑24V power adapter (ensure voltage is within range)
  • Computer: Windows PC (or other computer capable of using SSH tools)

2. Usage Guide & Important Notes​

Core Principle: Most issues are caused by configuration, connection, or power supply inconsistencies. Please prioritize troubleshooting in the following order:

  1. Connection & Configuration: Ensure the DIP switch setting, firmware type, and the connection method in Klipper's [mcu SHT36] configuration are all consistent (all CAN or all RS232).
  2. Power & Wiring: Confirm the supply voltage is correct. Ensure all cable connections are secure.
  3. Status Indicators: After powering on, check if the power and status LEDs are functioning normally.

Related Documents:

3. Firmware Flashing & ID Search​

Process Overview:

  1. Set the DIP switch (choose CAN or RS232 mode)
  2. Flash the corresponding firmware
  3. Obtain the device ID (CAN UUID or RS232 ID)
  4. Configure the connection in Klipper

Related Documents:

4. Hardware Connection & Klipper Configuration​

Includes:

  • Tool board interface functionality descriptions
  • Wiring methods for motors, heaters, sensors, etc.
  • Klipper reference configuration files

Related Documents:

5. Advanced Features (Optional)​

Optional Features:

  • Accelerometer: Used for Input Shaper resonance compensation
  • 31865: High-precision temperature sensor (PT100/PT1000) configuration
  • EDDY: Eddy current sensor. Used for nozzle contact detection

Related Documents:

6. Technical Resources​

Includes:

  • Schematic download
  • 3D model files

Related Documents:

Usage Suggestions​

For Beginners:​

  1. Start with Preparations
  2. Read the Important Notes carefully
  3. Follow the sequence: Firmware Flashing → Hardware Connection → Basic Testing
  4. Refer to Troubleshooting if issues arise

For Experienced Users:​

  1. Go directly to the specific functional documentation you need
  2. Refer to Technical Resources for detailed parameters
  3. Configure Advanced Features to enhance performance
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