Gen2 FW Sound Patterns

Table Of Contents

Voltara uses the motor itself as a speaker — the tones you hear come from the motor windings vibrating. This means beeps only play while the motor is idle. The moment the motor starts spinning, the beeper quietly steps aside.

Normal Sounds #

Startup Melody #

A short musical tune plays immediately after the ESC powers on and passes its internal health check. Four rising notes ending with a soft fade. This is your confirmation that the ESC is ready.

If you do not hear the startup melody, something in the health check failed. Check the LED for the error pattern.

Protocol Confirmation #

A short series of quick beeps right after the startup melody tells you which signal protocol was detected:

  • 1 beep — Standard DSHOT
  • 2 beeps — Bidirectional DSHOT
  • 3 beeps — Analog PWM

Turtle Mode On/Off #

When turtle mode is activated, you will hear a high-pitched beep followed by a lower-pitched beep when deactivated

Alert Sounds #

Signal Lost #

Three fast ascending chirps, repeated every 5 seconds while the signal is missing. This is your audible cue that the flight controller is not talking to the ESC — usually signal stopped preparing for passtrough, wiring issue, or a defective FC.

Lost-Model Beacon #

If configured and the signal has been 0(disarmed) for the set time, the ESC plays a continuous, loud Morse SOS pattern (three short, three long, three short tones). Designed to carry through grass, leaves, and brush so you can find your quad after a crash.

The beacon starts automatically after the configured idle time and stops the moment the motor spins again.

Motor Stuck Error #

Three short beeps when the throttle is brought to 0 confirm a previously running motor was stopped because it was blocked, or the start-up wasnt possible.

Beacon Tones (via your transmitter) #

Most flight controllers let you trigger a beacon remotely through Dshot. Voltara plays a different tone for each of the five beacon channels:

  • Beacon 1-5: tones from roughly 1250 Hz to 1450 Hz

Configuration Sounds #

When you enter or exit the configuration menu from your FC(selected FC’s), you hear two short tones — rising on entry, falling on exit — so you always know which mode the ESC is in.

Configurable Options #

Three settings control all ESC sounds. All are adjustable in the Voltara Configurator.

Beep Volume #

  • Low — quiet, suitable for indoor or sound-sensitive environments
  • Medium — balanced loudness
  • High — maximum volume, recommended so the lost-model beacon carries outdoors (default)

Tip: Different motors will draw different amounts of current for a specific Volume level. And in general, Voltara will draw more current on beeping than others, so if you are powering it through a “smoke-stopper”, be sure it can handle 3A before triggering.

Beep Mode #

  • All — every ESC sound plays (default)
  • Errors only — only faults, signal-lost, and low-battery beeps play — no startup melody or protocol confirmation
  • Off — completely silent (the lost-model beacon still plays because it is designed to help you recover a crashed quad)

Lost-Model Beacon Delay #

  • Off (default) — beacon disabled
  • 1 to 10 minutes — how long the ESC waits after the last motor run before starting the SOS beacon