This manual covers the connection of a Carmomaq Stratto 1.2 & 1.5 roast machine via Wi-Fi to Cropster's Roasting Intelligence.
Specifications
The Carmomaq Stratto 1.5 roast machines are capable of connecting via Wi-Fi or USB. This manual discusses a Stratto's connection via Wi-Fi.
📚 Learn how to connect the Carmomaq Stratto 1.5 roast machine via USB.
Requirements
- Stratto 1.2 – Tablet
- Stratto 1.5 – Touchscreen

Supported measurements
- Bean temperature
- Exhaust temperature
- Gas (%)
- Gas control (%)
- Airflow (%)
- Airflow control (%)
- Drum speed (%)
Setting up a connection
- Find the available network provided by the Carmomaq Stratto roast machine.
- Connect to the Carmomaq's wireless network.
- Continue with the Roasting Intelligence (RI) Setup.
- (Recommended) Connect your computer to the internet via Ethernet cable.
- Stratto 1.5 only: Connect the roast machine via USB.
Roasting Intelligence (RI) Setup
Installing the Roasting Intelligence (RI) software
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Download RI.
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Complete the installation process by following the steps provided.
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Double-click the Cropster icon on your desktop to access RI.
- Click the green Login with the browser button.
💡 Select the "Remember me on this device" option to save your login credentials for future access. - You will be directed to the C-sar browser.
- Enter your Username* and Password* and click the green Sign in with password button.
💡You need to use the same credentials that you use to access the online platform C-sar.
Check out the Release notes for every version of RI5 to stay updated on the latest features and improvements. You can access the Release notes directly in RI by clicking on Help > Release Notes.
Establishing a connection to the machine
The images displayed below are meant to serve as reference examples; however, they may differ slightly from what you will see on your screen.
- Click
Preferences > Machine > Configuration at the bottom left to access the Preferences screen.
- To choose the Roast machine, click on the dropdown menu in the Machine section.
- By clicking on the + Add connector option, you can choose your connector from the available options in the dropdown list.
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You need to select Carmomaq PLC (over Network) from the dropdown.
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Click Select to add the connector.
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Navigate to the Machine > Measurements tab. All supported measurements will be displayed.
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To activate the measurements, simply click the green toggle button.
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Switch on the measurements you would like to enable and select Carmomaq PLC (over Network) from the dropdown.
💡 Make your measurement readouts more compact. Choose the size of your measurement readouts by selecting either the Small or Large view for display. -
Change the order of the measurements by using the
Drag and Drop icon and move it into position.
💡You can also customize the color of each measurement by clicking on the colorful dots on the right side of the screen. -
Navigate to the Machine > Controls tab.
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To activate the controls, simply click the green toggle button. Enable the controls you wish to activate.
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Choose the appropriate connector option that you selected in Step 8.
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Change the order of the Slider controls by using the
Drag and Drop icon and move it into position.
- Navigate back to the Machine > Configuration tab and click on the
Gear icon in the Connector setup section next to the previously added connector to open and configure the PLC settings.
- Enter the IP address for the Stratto roast machine.
The default IP address for Stratto 1.2 & 1.5 roast machines, is 192.168.4.1. - Click OK.
- Click Save to finalize the changes.
After saving the changes, RI will automatically restart. If the setup was successful, you will see the temperature values displayed on the right-hand side of the RI screen following the restart.
Troubleshooting
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?
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Have you downloaded the driver for the USB serial converter?
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Is the correct serial port within the RI selected?
When using Replay Assist, do not use any other temperature-controlling software in parallel.
Any gas/airflow changes from a concurrent client disable Replay Assist for the remainder of the roast.
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 support.cropster.com, and attach the following information relevant to the USB serial converter used:
A Cropster representative will assess the information, and assist in providing the required driver for the USB serial converter used.
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 help.cropster.com.