RaspiCamSrv User Guide (No Camera)

This is a special variant of the general raspiCamSrv User Interface for the case when no camera is available.

This applies to the following situations:

• There is currently no camera at all connected to the Raspberry Pi, neither CSI camera nor USB camera.
• Currently, only one or more USB cameras are connected and have been recognized by the system (see Info) but usage of USB cameras has been deactivated in Settings.

Application Screen

Initailly, the system starts up with the Info dialog activated:

Elements

Title bar

On the right side, the title bar shows

• the current server connection
• An information that currently no camera is available
• the active user
• A special icon will indicate unsaved configuration changes:
  
  It will vanish after changes have been saved with Settings/Configuration/Store Configuration or after a stored configuration has been loaded.
  The icon can be pressed to save unsaved changes.

On the left side, the title bar shows the application name (raspiCamSrv) and the current screen.

Main Menu

The main menu (black background) allows navigation to different screens:

• Info opens the Camera Information page with information on installed cameras as well as Properties and Sensor Modes of the active camera.
• Trigger Allows configuring and controlling triggered actions, based on configured events from GPIO-connected sensors
• Console is dedicated to manually controlled interactions with the Raspberry Pi OS or with GPIO-connected Actors, such as motors, servos or LEDs.
• Settings opens the Settings page for all kinds of static configurations for raspiCamSrv.
• Log Out will log the active user out and direct to the Log-In Screen

NOTE: Selecting an option on the main menu will issue a request to the server with a specific URL and, thus, refresh the screen.

Submenu

Most of the raspiCamSrv pages, selected by a Main Menu option have a submenu.
Submenues are indicated by a green background.

NOTE: Selecting an option on a submenu will not issue a new request and, thus, will not refresh the screen with new information from the server.
Instead, submenu options activate different sections of the currently loaded page.
However, Submit buttons on a page section apply only to data shown on the active section and not to data on other sections of the same page.

Process Status indicators

On the right side of the menu bar there is space status indicators for background processes:

When a camera is not available, there is only the status indicator for the Trigger thread:

Gray color indicates that a process is inactive whereas red indicates that it is active.

Yellow color indicates that the process is active but currently not scheduled to register events

Message Line

At the bottom of the screen, there is a message line where application messages will be shown when necessary.