ZWO ASI Electronic Filter Wheels (EFW) use the ASI EFW driver which is available for download as a 3rd party driver from INDI's download page. Under Ubuntu, you can install it via:
sudo add-apt-repository ppa:mutlaqja/ppa
sudo apt-get update
sudo apt-get install indi-asi
The INDI ASI EFW driver is for the ZWO ASI Electronic Filter Wheel (EFW). It supports all models. The devices must be powered and connected before you run the INDI driver.
ASI offer several sizes of wheel, such as:
The EFWs connect via USB2.0.
The INDI control panel in EKOS exposes data associated with the device and permits parameters to be set. In normal operation, higher level software, such as EKOS, will control the ASI EFW, but this section will utilise the INDI control panel to explain the available features.
When the filter wheel is first connected and the ASI EFW driver used for the first time, it is recommended to setup the filter names to make future usage easier.
The ASI EFW driver is now ready to use.
The Main Control Tab allows the device to Connect / Disconnect.
The General Info tab displays basic information about the driver.
The Options tab provides generic control options over the filter wheel:
The Filter Wheel tab allows filter parameters to be displayed and set:
The current list of outstanding issues can be viewed at INDI's Github issues page. If you find an issue please report it on the Indilib forum and remember to include the logs (details on how to do this here).