3DR uBlox GPS with Compass
Raspberry Pi 2
Raspberry Pi Camera Board
Ctrl / Data
6600 mAh 4s Lipo Battery
3DR Power Module
BlueROV Electrical Block Diagram
Basic 30A ESC
Basic 30A ESC
Power 5 vdc
See Sht. 3
Main ESC PWM
(connect to aux. output - see Sht. 3)
BlueRoboticsPressure / Temp. Sensor
Connect ESCs Control Here
3DR uBlox GPS
Connect I2C Expander
Then connect uBlox Compass and BlueRobotics Depth Sensor to Expander
Connect 3DR Power Module Pigtail Here
Connect here for Raspberry Pi 5v power
3.Pixhawk connector assignments
Thruster ESCs - PWM
Pwr Input (from module)
Warning Buzzer (optional)
Signal from GPS/Compass
Rasp. PI +5v / - Gnd.
Connect I2c Expander which is connected to uBLOX compass and Bluerobotics depth/temp. sensor
4.3DR UBlox GPS + Compass ModuleThis page covers the installation of the 3DR UBlox GPS + Compass module.
5.3DR Power ModuleThis page explains how to set up the 3DR Power Module (PM) to measure battery voltage and current consumption. The information will also be useful for setting up other types of Power Module.
Terminal Board +/Gnd
To Pixhawk Power Input Conn.
6.I’ve got a few comments:
1. The “safety sw” is currently disabled in our recommended parameters. The buzzer is optional.
(Removed Safety Sw. connection from sht 1 and 3. Added word (optional) to buzzer on sht 1 and 3 .) pfw
2. I would recommend supplying power to the Raspberry Pi via one of the auxiliary outputs (shown on page 3 of your slides) (updated shts 1 and 3 accordingly) pfw
3. If you are planning to use a pressure sensor for depth, you will need to use the I2C expander that comes with the PixHawk to connect both the pressure sensor and GPS/compass. (Slide 5) (updated shts 1 and 3 accordingly) pfw
Please let us know if you have any other questions.