AUAV Air Data Module

DroneCAN enabled AUAV absolute and differential pressure sensor

Introduction

The Beyond Robotix Air Data Module makes use of differential and absolute pressure sensors to estimate airspeed and altitude. The module works over DroneCAN with a variety of autopilots.

There are 5 variants of the air data module, each with their own maximum speeds:

• L05D -> 45m/s

• L10D -> 63m/s

• L30D -> 111m/s

• L60D -> 149m/s

• L100D -> 193m/s

It's best to choose the lowest speed variant which your platform will not exceed the maximum speed of.

It can be purchased here:

UAV Air Data ModuleBeyond Robotix

Pinout

Pin	Function
1	5V
2	CAN H
3	CAN L
4	GND

The CAN ports are common that can be used to daisy chain to other CAN nodes.

The computation on the Air Data Module is performed on the CAN Node. If you would like to terminate the CAN bus at the Air Data Module, a solder jumper labeled 120R can be jumped.

Parameters

Parameter	Description	Accepted Values
NodeID	The ID the node will appear as in the CAN bus	1-127
Sensor_Pressure	This is the type of AUAV sensor installed on the Air Data Module.	L05D = 5 L10D = 10 L30D = 30 L60D = 60 L100D = 100

Firmware

Our air data module runs on custom firmware which can be found here, including the latest firmware binaries:

Release V1.1 DNA fix · BeyondRobotix/AUAV-DroneCANGitHub

To update to the latest firmware, there are two methods you can use:

• Mission Planner

• DroneCAN GUI

Updating: Mission Planner

1. Connect to your Flight Controller in Mission Planner

2. Go to Setup > Optional Hardware > UAVCAN

3. Click CAN1 or CAN2 (Depending on the bus you are connected to)

4. Click on Menu next to the Air Data Module

5. Click Update Firmware

6. Select the .bin file from the latest release page above

Updating: DroneCAN GUI

1. Connect to your Flight Controller in DroneCAN GUI

2. Double Click on the Air Data Module

3. Click Update Firmware

4. Select the .bin file from the latest release page above

You are now on the latest version of the firmware!

Mechanical

Images of hole spacing and overall dimensions are provided below. Additionally, the case STL files can

Case Specifications

Specifcations for the size and shape of the case:

162KB

Mechanical Drawing Air Data Module Case.pdf

PDF

Open

Files to 3D print/edit the included case:

72KB

BR AUAV ADM Lid.3mf

Open

260KB

BR AUAV ADM Base.3mf

Open

PCB Specifications

170KB

Mechanical Drawing Air Data Module.pdf

PDF

Open

5MB

AUAV DroneCAN Air Data Module.step

Open

Please note: this product is designed to require the case. Without it, the Micro CAN node will need mechanically stabilising through another means.