Reference Wiring

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Search Toolboard RS232 ID

Precautions

Important Preparation

1. Firmware Requirements:
   The toolboard must be flashed with RS232 firmware, otherwise communication is not possible.
2. Mandatory Common Ground:
   ⚠️ Before connecting the toolboard, ensure that the toolboard and the motherboard share the same GND (using the same 24V/12V power supply is sufficient).

RS232 Precautions

• Except for D8, D8PRO, and C8P, which support the RS232 interface, other motherboards do not support the RS232 interface.
• Motherboards that do not support RS232 need to use G2T or 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 IP is 192.168.101.179, simply enter it and press Enter.

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2. Open the WEB interface of the host computer. In the configuration options on the left sidebar, find:

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

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

3. Click on printer.cfg to enter, then click DEVICES in the upper right corner.

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4. Click SERIAL, then refresh.

Refresh in fluidd Loading...

Refresh in mainsail Loading...

5. Copy the ID by clicking the arrow indicated.

In fluidd, confirm if ch341-uart exists, then click Path_by_hardware. This is the RS232_ID. Loading...

In mainsail, confirm if CH341-UART exists, then click Path_by_hardware. This is the RS232_ID. Loading...

Note

• When using UTOR to connect the toolboard, there are usually two RS232_IDs. Try each one.

Fill in the Toolboard RS232 ID

• Below is a reference configuration.

  Note

  • In the configuration below, toolboard refers to the toolboard name. If you have a different name, replace it accordingly.
  Danger

  [mcu toolboard]
  serial: <Replace here with the ID you just found>
  baud: 250000
  restart_method: command

  • To add the toolboard's ID, it must be [mcu toolboard] followed by serial: and the toolboard ID you found.
  • Below is a reference configuration.
  • Please note that this tutorial is for searching and configuring the toolboard ID. Normally, the toolboard should already be properly connected to the motherboard.
  • The motherboard must be [mcu], and the toolboard must be [mcu toolboard].
  • Click SAVE & RESTART in the upper right corner to automatically save and restart Klipper.

Danger

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