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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, and various non-standard modified hosts.
    • Important: Using modified hosts may lead to system instability, functional abnormalities, or failure 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. User Guide & Important Notes​

Core Principle: Most issues are caused by configuration, connection, or power supply inconsistencies. 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 power supply voltage is correct. Ensure all cables are securely connected.
  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: For input shaping and resonance compensation.
  • 31865: Configuration for high-precision temperature sensors (PT100/PT1000).
  • EDDY: Eddy current sensor for nozzle contact detection.

Related Documents:

6. Technical Resources​

Includes:

  • Schematic downloads.
  • 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 document you need.
  2. Refer to Technical Resources for detailed parameters.
  3. Configure Advanced Features to enhance performance.
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