triggerTone ?

{
  "id": "triggerTone",
  "result": {
    "name": "triggerTone",
    "firmware": "SoundTransmitter",
    "properties": [
      "triggerToneFrequency",
      "triggerToneVolume",
      "triggerToneDuration"
    ],
    "pins": [
      "bnc_a",
      "btn_a"
    ],
    "functions": [
      "trigger",
      "attachTo",
      "detachFrom"
    ],
    "parameters": [
      "pin_name",
      "pin_mode"
    ]
  }
}

triggerTone