AVCS2: Attitude and Heading Reference System (GY-88 10-DOF) module

The GY-88 packages 3 popular sensors (technically more than 3, but I will cover that later) in a single convenient PCB. Each sensor measures a specific type of spacial data. The module contains a 6-axis accelerometer, a magnometer, and a barometer. All the sensors you need to create a Attitude and Heading Reference System (AHRS). In this post I will go over each sensor in more detail. I will also cover how it can be used to inform an Autonomous Vehicle Control System aimed at multi-rotor flight control.

AVCS1: Sonic Range Finder (HC-SR04) discussion

Th HC-SR04 sonic range finding modules are a popular choice for projects which require sensing the distance to some object. I recently ordered a bunch of them to keep on hand, but I wanted to add one to the Infrared Light Goggle project I built previously. This addition will allow me to add the approximate distance to the HUD.