Coffee-Tech FZ-94, Silon, Ghibli models (via USB) - Roasting Intelligence (RI) Setup (beta)

This manual covers the connection of Coffee-Tech FZ-94, Silon and Ghibli models equipped with a serial port to Cropster's Roasting Intelligence.

If you haven't been invited to participate in the beta program for this integration, but you are interested in participating and testing the feature, please sign up here.

Beta means that the features are being tested with a select group of users to help us identify minor flaws under everyday conditions that we cannot reproduce internally. Therefore, it will be necessary that you share feedback with us and let us know whenever you come across some unexpected behavior.



  • USB cable
  • Driver for the USB serial converter

Note: The driver may be already be pre-installed with your operating system.

Supported measurements

  • Bean temperature
  • Exhaust temperature
  • Drum temperature
  • Airflow (%)
  • Drum speed (MHz)

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.
    They are the email address and password you were given to access your Cropster account on
  5. Check the Remember credentials box if you want to be able to run the RI offline.
  6. Click the Login button.

Establishing a connection to the machine

  1. Go to Account > Preferences > Machine tab.
  2. Select the Roasting machine you would like to connect from the drop down menu (e.g. Coffee-Tech FZ-94)
  3. Select Coffee-Tech Beta (PIDs over serial/USB) from the drop-down for all measurements.
  4. Click on the gear () icon to open the PID settings.
  5. Select the Serial port that refers to the connection to the machine and the roast machine Model. 
    • Serial port: tty.usbserial-x (Mac) or COMx (Windows)
    • Model: FZ-94, Silon or Ghibli
    • Baud rate and Stop bits: These values might differ from machine to machine, please try the different combinations.
  6. Click Save to confirm the changes. The RI requires a restart to apply the settings.

    Hint: Disable the chart for Drum speed by unchecking the box next to Chart for the respective measurements. The values will still be visible at the right hand side and the main chart appears bigger.

    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.

    If you have selected a serial port from the RI, and you receive Sources connected from the bottom-right corner of the roasting application, but you can't see live temperature readouts, you may not have selected the serial port referring to the roast machine's connection.

    Learn how to customize your RI user preferences


    The machine is successfully connected but RI indicates 0 for the Drum speed and Airflow:

    • Make sure the drum is turned on.

    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?

    Driver for the USB serial converter

    If you cannot select the correct serial port within the RI's Serial port field, your computer may not have the appropriate driver needed to recognize the serial converter's physical connection.

    Please reach out to, and attach the following information in relevance to the USB serial converter used:

    • Brand, and model

    • Serial number

    • Picture of the serial converter

    • RI log files

    A Cropster representative will assess the information, and assist in providing the required driver for the USB serial converter used.

    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 our Getting started video and enjoy tracking your first roasts! 

    More manuals and videos can be found on