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Retail: Serial-connected scale setup for Windows
Retail: Serial-connected scale setup for Windows

Scale setup via serial connection using 232Keys for Windows

Taylor Price avatar
Written by Taylor Price
Updated over a week ago

In this article, we go over how to connect and configure your RS232 serial connected scale to a Windows computer using the 232Keys application as a bridge. This will allow you to import the weight reflected on your scale's display to GrowFlow.

Currently, this application only supports auto-configuration of Ohaus and A&D Scales. While you can configure other third-party devices to this software, it is recommended that you reach out to 232Keys support for additional configuration assistance.

Items needed

  • State recommended scale with a serial port for data export (A)

  • Female to Female Serial Adapter, if using A&D scale (B)

  • Male serial to USB-A cable (C)

  • Windows PC with 232Keys application


  1. Connect the serial cable to the 9-pin RS232 serial port on the back of your scale. NOTE: If using an A&D Scale you will need to connect the male-to-male serial adapter in between the female serial cable and the port on your scale.

2. Download 232Keys using the following link here.

3. From your Downloads folder, open the 232keys-setup file by double-clicking on it.

4. Follow the on-screen instructions to complete the installation.

5. Launch the 232Keys app from your Start menu.

6. Navigate to the Input tab and click Auto for the port assignment.

7. In the device list select either A&D or Ohaus depending on your scale type.

8. Click Set Defaults to have the sub-settings automatically assigned based on your scale type.

9. Navigate to the Output tab.

10. For Keyboard type select US (QWERTY).

11. Ensure that the End with drop-down is set to Enter.

12. Close 232Keys.

13. Before starting 232Keys again, ensure that the scale is turned on and has completed its boot sequence.

14. Launch 232Keys and click Start on the start/stop tab.

15. Open an empty Notepad file, ensuring that the cursor is placed in the empty document. Press the Print key on the scale to test input.

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