GIO - Read analogue inputs (command line)

Viewing GIO analogue input data on the command line is incredibly simple. The rostopic echo command subscribes to the topic in question then displays an data received in the terminal window:

rostopic echo /ronex/general_io/12/state

This will display the status of the whole GIO module, if you’d prefer to display a single analogue channel’s data instead (channel 0 in the example below) you can use the following command:

rostopic echo /ronex/general_io/12/state/analogue[0]