Easyster
This page provides instructions on how to connect the coffee roasting software, Firescope, with the Easyster roasting machine.
Pre-checks before connecting
Connect your roasting machine to the computer with a USB cable.
Turn on the roasting machine.
Preset selection guide
Easyster Non-option Model
If your Easyster does not have the air pressure option and is not a Smart model, please select Autonics (Korean roasting machine) as the preset.
Easyster with Air Pressure Option
If your Easyster is equipped with the air pressure option (see photo), select the preset Easyster with air pressure.
If your machine does not have the air pressure option but you choose this preset, the air pressure value will not appear and the connection may fail

Easyster Smart Model
If your Easyster has a built-in tablet (Smart model, see photo), please follow the Easyster Smart integration guide.

Setting up in the Firescope app
On the first roasting machine setup page, click [Connect my machine] or go to the main menu → [Machines] and click [Create].
Choose the integration preset that matches your machine, based on the preset selection guide above.
Select the correct serial port. Valid ports usually have the following formats:
Windows
[FTDI] COM3, [Silicon Labs] COM4, etc.
⚠️ Ports with [Microsoft] at the front are less likely to work.
COM1 and COM2 usually do not work reliably.
Mac
Ports like /dev/tty.usbserial-XXXXXXX are typically correct.
If you don’t see this type of port, please check the troubleshooting guide.
Click [Submit]. The connection result will appear within 10 seconds.
If the connection is successful, you’ll be able to see temperature values from your roasting machine.
If the connection fails, please double-check the following:
Try changing the serial port and reconnecting.
Make sure the USB cable is properly connected.
Reinstall the driver and try again.
Windows
Download the driver from this link.
Unzip the file and install the driver.
Restart your computer and repeat steps 1–3 above.
If a new serial port appears, select that one.
Mac
Download the driver from this link.
Move the unzipped file into your Applications folder.
Open the file from Applications and run it.
Restart your computer and repeat steps 1–3 above.
If a new serial port appears, select that one.
If you find it difficult to follow this guide or something doesn’t work as expected, please request chat support or remote assistance.
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