Pixhawk Passive Buzzer and Switch

The Pixhawk Passive Buzzer and Switch is a flight controller accessory designed to connect directly to a Pixhawk or PX4/APM autopilot board to provide audible feedback and manual control, allowing users to hear different beep tones for status alerts (such as mode changes, arming, warnings and errors) through the passive buzzer and to easily perform arm/disarm operations with the integrated E-Switch module; the buzzer uses a simple 1.25–2P JST-SH interface on one side to plug into the controller and typically emits around 50 dB of sound, while the panel-mount E-Switch features a red indicator and ~8 mm mounting hole diameter, making it a convenient and lightweight addition to Pixhawk-based drones, multicopters and autonomous vehicles for enhanced feedback and safety control.