Reference Wiring

RS232 ID of the Toolboard

Notes

Important Preparation

1. Firmware Requirement:
   The toolboard must be flashed with RS232 firmware, otherwise communication will not be possible.
2. Common Ground Required:
   ⚠️ Before connecting the toolboard, ensure that the toolboard and mainboard share the same GND (can be achieved by using the same 24V/12V power supply)

RS232 Notes

• In addition to D8, D8PRO, and C8P, no other mainboards support the RS232 interface.
• For unsupported mainboards, use G2T or UTOR for connection. This tutorial uses UTOR for connection.

Search for RS232 ID

1. Open a browser and enter the IP address of the host computer in the address bar. For example, if my host computer's IP is 192.168.101.179, directly enter it and press Enter.

2. Open the WEB interface of the host computer, and in the configuration section of the left sidebar, find:

For fluidd: {…}, click into it to find printer.cfg

For mainsail: Machine, click into it to find printer.cfg

3. After clicking into printer.cfg, click on DEVICES at the top right:

4. Click SERIAL, then refresh:

   Refresh in fluidd:

   Refresh in mainsail:

5. Copy the ID. Click as indicated by the arrow to copy:

   In fluidd, check if ttyUSB exists and ensure Path_by_hardware exists; this is the RS232_ID

   In mainsail, check if ttyUSB exists and ensure Path_by_hardware exists; this is the RS232_ID

   Notes

   • When connecting the toolboard using UTOR, two RS232_IDs typically appear. Please try them one by one.

Fill in the Toolboard RS232 ID

• Below is a reference configuration

  Notes

  • toolboard in the configuration below refers to the name of the toolboard. Replace it with the corresponding name if different.
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  [mcu toolboard]
  serial: <Replace this with the ID you just looked up>

  • To add the ID for the toolboard, it must be [mcu toolboard] followed by serial:, then the ID of the toolboard you searched for.
  • Below is a reference configuration.
  • Please note that this tutorial focuses on searching for and configuring the toolboard ID, and normally the connection to the mainboard is already established.
  • Also note that the mainboard must be [mcu], and the toolboard is [mcu toolboard].
  • Click SAVE & RESTART at the top right corner, which will automatically save and restart klipper.

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Note: All IDs appearing in this document are examples. The ID of each mainboard is different in reality. Please fill in the actual obtained ID.

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Please note that the ID below cannot be used !!!!!!

serial: /dev/serial/by-id/usb-1a86_USB_Serial-if00-port0

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