Pixhawk Passive Buzzer and Safety Switch

Passive buzzer and illuminated safety switch for Pixhawk-family flight controllers running ArduPilot or PX4. The buzzer plays distinct tones for arming, flight-mode changes and warnings, while the safety switch has to be pressed before the motors can arm — a physical interlock for multirotors, planes and VTOLs.

Key features

• Passive buzzer rated at about 50 dB, driven directly from the flight controller's buzzer port with no separate power
• Different sounds for different modes and states, so you can read the board's status without a ground station
• Safety switch with a built-in status LED that shows whether the outputs are locked or live
• Follows the original Pixhawk design: 1.25 mm pitch 2-pin plug on the buzzer, 3-pin plug on the switch

Specifications

• Buzzer type: Passive
• Volume: 50 dB
• Buzzer plug: 1.25 mm pitch, 2-pin
• Switch plug: 3-pin
• Switch indicator: Status LED
• Package: 1 × buzzer, 1 × safety switch

These plug into the separate BUZZER and SWITCH ports found on Pixhawk 2.4.8-style boards. Newer controllers that route the buzzer and switch through the GPS connector, such as Pixhawk 4 and the Pixhawk 6 series, need a GPS module with the switch and buzzer built in instead.