Rigel Systems nFocus driver is included with libindi >= 1.7.6 Under Ubuntu, you can install the driver via:
sudo add-apt-repository ppa:mutlaqja/ppa
sudo apt-get update
sudo apt-get install libindi1
The nFOCUS controller is a small DC focus controller that provides two directions at two speeds with only two buttons using a12V regulated output. Low speed is adjustable pulse width modulated (PWM) drive, providing full voltage torque for low speed operation. It is compatible with Van Slyke Engineering, JMI, Celestron, MEADE LX200GPS microfocuser, Moonlite and others.
The driver works in Relative Focuser mode where you can command the focuser specific number of steps INWARD or OUTWARD. Speed controls can be configured in the settings tab of the driver.
Main Control Tab
- Direction: Focus IN or Focus OUT. IN decreases ticks count, OUT increases ticks count.
- Relative Position: Set the number of steps from the current absolute position to move.
- Temperature: read out of the built in temperature sensor or the external temperature probe if any.
The focuser is connected to the PC via serial connection. Use Serial to USB adapter and connect it to a USB port. By default, the driver would try to connect to all available systems ports until a successful connection is made. It is genereally recommend to employ the Serial Port Assistant tool to assign a permenant designation for the port. This would make connecting to the serial port reliable from the first time if there are multiple serial to usb devices being used at the same time by the system.
Ethernet/Networked connection option is available when using a Serial-To-Ethernet adapter. The IP address and port of the adapter is required to make the connection.
After making changes to the connection parameters, go to the Options tab and save the configuration.
The options tab includes parameters to enable/disable logging and debugging settings in addition to polling and joystick control.
The debugging and logging options should remain off unless you are to diagnose a problem with the driver.
Polling: How often should the driver read the device output signals? By default it is set to 500ms or twice per second.
Joystick: If a gamepad or joystick is connected, enable it to focus IN and OUT using the joystick. A new tab called Joystick is created. The INDI joystick driver must be running and connected to a supported joystick under Linux.
The nFocus settings can be configured in the settings tab.
- ON Waiting Time: Set focus ON time (# of 0.68ms to wait, default = 73 = 0.05sec)
- OFF Waiting Time: Set focus OFF time (# of 0.68ms to wait, default = 15 = 0.01sec)
- Fast Mode Delay: Set time to wait until second press if high speed requested
There are no known bugs for this driver. If you found a bug, please report it at INDI's bug tracking system at SourceForge. (You can log in with a variety of existing accounts, including Google, Yahoo and OpenID.)