Safety

Safety Setup

Previously, in the RC Transmitter Setup section, we covered Setting Up Failsafe. In QGC we need to make sure we disable some of the failsafe options, as many of them are related to GPS-enabled drones. VRC is all about indoor navigation in a GPS-denied environment therefore it warrants a different safety configuration. The video below walks through the setup process.

Disable Safety Switch

Bell VRC is about navigating indoors in a GPS-denied environment. In many cases, users of GPS-based drones have a safety switch to pre-arm their drone. Since we do not have the requirement of this hardware we will need to disable the pre-arm check.

To do this we will change one parameter in PX4's configuration known as CBRK_IO_SAFETY. You can find all PX4 parameters here. It's not important to understand all of these parameters, although it is important to understand the process of changing them, as this will be necessary for Phase 2 of VRC.

In the video below we give an overview of why this parameter needs to be changed and how to do it. You will learn how to assign a value of 22027 (disabled) to CBRK_IO_SAFETY.