Mux Input¶

Overview¶

A Mux Input (multiplexer) passes through one of up to eight data inputs,
chosen by a separate selector input — like a rotary selector switch. The
selector's value (0–7) decides which data input appears at the output. Use it to
switch between sources at runtime: different calibration sets, sensor banks, or
operating-mode values.

Prerequisites & hardware¶

You need:

• A selector input whose value is 0–7 — any existing input, by alias.
  This is often a Constant Value Input, an
  Analog Switch Input or a mode value.
• One or more data inputs to choose between (up to eight), each by alias.

Add it in the app¶

1. Add a new input and choose Mux Input as the type.
2. Choose the selector and data inputs.
3. Give it a clear alias (e.g. Active Pressure Target).
4. Assign the selector input, then fill data input 0…7 with the sources
   you want to switch between.

Settings reference¶

Schema: config/MuxInputConfigData.proto.

How it selects: the output simply mirrors the data input whose slot number
matches the current selector value. A selector of 2 passes Data input 2
straight through.

Common settings¶

Mux Input also uses the shared setting — alias. See Common IO Settings.

Example — switch pressure target by drive mode¶

1. Type Mux Input, alias Active Pressure Target.
2. Selector input = your Drive Mode value (0 = Comfort, 1 = Sport).
3. Data input 0 = Comfort Pressure constant.
4. Data input 1 = Sport Pressure constant.
5. The output now follows the constant for whichever mode is selected.

Troubleshooting¶

• Output stuck on one source: check the selector value actually changes
  and lands on 0–7.
• Unexpected / zero output: a selected slot may be empty — fill Data input
  N for every selector value you use.
• Selector out of range: values above 7 have no matching slot; clamp or map
  the selector so it stays within 0–7.

Related¶

• Constant Value Input — fixed values to switch between.
• Analog Switch Input — a multi-position selector source.
• Map Input — interpolate a value instead of selecting one.