Holybro Controller Drone Flight Controller Pixhawk 6C & PM07 & M8N GPS Module | eBay
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Pixhawk PX4 Autopilot PIX 2.4.6(2.4.5) Flight Controller 32 bit ARM for RC Model | eBay
Pixhawk Overview — Copter documentation
Pixhawk PX4 Autopilot PIX 2.4.6(2.4.5) Flight Controller 32 bit ARM Set w/ Case | eBay
Amazon.com: Radiolink PIXHAWK Flight Controller and M8N GPS SE100 Module High Positional Accuracy with Power Module FPV RC Drone FC for 6-8 Axis Multirotor/Long-wheelbase Quadcopter : Toys & Games