I'm wiring a shifter for a bike engined car, and I need to generate signals to go to both the ECU and the shifter unit. There are two switches: one for up and one for down.

The ECU requires a voltage signal, with thresholds set for up and down shifting (ie voltage normally sits at 2.5V, but goes up or down depending on button presed. The shifter unit uses two digital signals, where each switch connects a pin on the shifter unit to ground.

Is it possible to send both of these signals from a single switch? The switch I have has contacts for both N/O and N/C, so I'm guessing I can do something whereby the analogue signal is changed by the N/C and the digital signal is completed by the N/O, but my knowledge of applying things this basic is limited.

At the risk of sounding lazy, can anyone make a quick circuit diagram to show how something like this can work?