Fly-SHT36-V3 Tool Board Documentation

Important Note

• This document is still being updated.

Important Note

• This document is still being updated.

Quick Navigation

1. 📦 Preparation

Hardware Checklist:

• Tool Board: Fly-SHT36-V3
• Host:
  Host Compatibility Note

  • Recommended Models: Fly-PI-V3, Raspberry Pi 4/5, and other standard hosts.
  • Unsupported Models: Redmi phones, WiFi dongles and set-top boxes, various non-standard modified hosts.
  • Important: Using modified hosts may lead to system instability, functional anomalies, or inability to use 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 another computer capable of using SSH tools).

2. ⚠️ Precautions & Troubleshooting Guide

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

1. Connection & Configuration: Ensure the DIP switch settings, firmware type, and the connection method in Klipper's [mcu SHT36] section are all consistent (all CAN or all RS232).
2. Power & Wiring: Confirm the supply voltage is correct and all cables are securely connected.
3. Status Indicators: After powering on, check if the power and status LEDs are normal.

Related Documents: CAN Firmware Connection Notes RS232 Firmware Connection Notes EDDY Issues Collection Common Questions

3. ⚡ Firmware Flashing & Device Identification

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: DIP Switch Settings Guide CAN Firmware Flashing & UUID Retrieval RS232 Firmware Flashing & ID Retrieval Alternative: BL Firmware Flashing

4. 🔌 Hardware Connection & Interface Configuration

Includes:

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

Related Documents: Tool Board Pinout & Wiring Diagrams Klipper Reference Configuration

5. ⚡ Advanced Features (Optional)

Optional Features:

• Accelerometer: For input shaping resonance suppression.
• 31865: High-precision temperature sensor (PT100/PT1000) configuration.
• EDDY: Eddy current sensor for nozzle contact detection.

Related Documents: Accelerometer Usage Guide 31865 DIP Switch & Configuration EDDY Sensor Configuration

6. 📚 Technical Resources

Includes:

• Schematic downloads.
• 3D model files.

Related Documents: Schematics & PCB Layout

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Usage Suggestions

For Beginners:

1. Start with Preparation.
2. Read Precautions 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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