San Franciscan with Eurotherm Controller (via USB) - Roasting Intelligence (RI) Setup

This manual explains how to connect a San Franciscan roast machine with (Eurotherm controls) via USB, to Cropster's Roasting Intelligence.

The following article and screenshots refer to Roasting Intelligence (RI5).

In case you previously used Roasting Intelligence (RI4) we kindly invite you to check the newly improved features of RI5. 

To upgrade to RI5, please download  Roasting Intelligence (RI5).



On recent MacOS devices, the driver may be already pre-installed with your operating system.

Supported measurements

  • Bean temperature
  • Exhaust temperature
  • Environment temperature

Roasting Intelligence (RI) Setup

Installing the Roasting Intelligence (RI) software

  1. Download the Roasting Intelligence from
  2. The Cropster installer leads you through all the installation steps.
  3. Open the RI by double-clicking the Cropster icon on the desktop
  4. Enter your username and password.
    The username is the email address your Cropster invitation has been sent to and use the password you've generated when accepting the invitation.
  5. Click the Login button.

Establishing a connection to the machine

  1. If you are setting up RI for the first time, click the Select machine button in the banner at the top or click  Preferences > Machine > Configuration bottom left to access the machine preferences screen.
  2. Select the Roasting machine you would like to connect from the drop down menu (e.g. San Franciscan SF-6). If the machine is not in the list you can add via the online platform.
  3. After selecting the machine all supported measurements will load. Change the order of the measurements by using the drag and drop icon and moving it into position.
  4. Switch on the measurements you would like to enable and select San Franciscan PID from the drop down. Repeat this step for all measurements you would like to enable.  
  5. Toggle the Rate of Rise checkbox for each measurement to activate or deactivate RoR.
  6. Click on the Gear icon to open the PID-settings. 
  7. Copy the settings as shown in the screenshot below:
    • Version: Eurotherm EPC3008
    • Serial port
      Windows: choose the COM option that refers to the connection to the roaster.
      Mac: choose the /dev/tty.usbserial option.

  8. Customize how each measurement is displayed by choosing to show it as a Curve on the graph and/or as Value in the sidebar on the right-hand side. You also have the option to adjust the size of the measurement in the sidebar.
  9. Click Save to confirm the changes. 

    RI will automatically restart after saving the changes. If the setup was successful you will be able to see temperature values on the right-hand side of the RI screen, after the restart.

    Learn how to customize your RI user preferences.


    If the RI indicates No source connected and/or you cannot see any measurements, please check the following: 

    • Is the roast machine connected to the computer? 
    • Have you downloaded the driver for the USB serial converter?
    • Is the correct serial port within the RI selected?
    • On MacOS: try installing the beta VCP driver. MacOS X10.15 to MacOS 11 (this is a Beta driver release and the installer should be run from the /Applications folder on your machine)

    For further assistance, please create a support ticket by clicking the Support button in the left lower corner of the app. A Cropster support rep will get in touch with you.

    Congratulations! You have successfully set up the Cropster Roasting Intelligence!

    Check out the Roasting Intelligence (RI5) - Getting Started manual and enjoy tracking your first roasts! More manuals and videos can be found on