Analog Sensor Overview
These sensors are measuring analog signals like light intensity using the photo transistor or temperature by NTC.
Most of fischertechnik analog sensors have to pins. These need to be connected to the controllers input pins. Some sensors have a red marked pin. Connect the marked pin to the red cable at ftSwarm/ftSwarmControl, use the signal input pin at ftSwarmRS.
Check ftSwarm and ftSwarmControl pinouts for more details.
ftSwarmControl: You could just use FTSWARM_A1 with analog sensors.
ftSwarm: You could use all inputs with analog sensors. Additionally you could measure voltage at FTSWARM_A2.
Image source: fischertechnik & elektrofuzzis