November 19, 2015 AT 10:00 pm

XRobots – Ultron Pt 3 #3DThursday #3DPrinting

James Bruton shares:

Looking at the Euler angles that come out of the Adafruit Absolute Orientation IMU and building a robot arm that uses the data directly through its inherent ability to move in Euler angles

read more on: http://xrobots.co.uk/

Featured Adafruit product

Adafruit 9-DOF Absolute Orientation IMU Fusion Breakout - BNO055

If you’ve ever ordered and wire up a 9-DOF sensor, chances are you’ve also realized the challenge of turning the sensor data from an accelerometer, gyroscope and magnetometer into actual “3D space orientation”! Orientation is a hard problem to solve. The sensor fusion algorithms (the secret sauce that blends accelerometer, magnetometer and gyroscope data into stable three-axis orientation output) can be mind-numbingly difficult to get right and implement on low cost real time systems.

Bosch is the first company to get this right by taking a MEMS accelerometer, magnetometer and gyroscope and putting them on a single die with a high speed ARM Cortex-M0 based processor to digest all the sensor data, abstract the sensor fusion and real time requirements away, and spit out data you can use in quaternions, Euler angles or vectors.

Rather than spending weeks or months fiddling with algorithms of varying accuracy and complexity, you can have meaningful sensor data in minutes thanks to the BNO055 – a smart 9-DOF sensor that does the sensor fusion all on its own! You can read the data right over I2C and Bob’s yer uncle.

The BNO055 can output the following sensor data:

Absolute Orientation (Euler Vector, 100Hz) Three axis orientation data based on a 360° sphere
Absolute Orientation (Quaterion, 100Hz) Four point quaternion output for more accurate data manipulation
Angular Velocity Vector (100Hz) Three axis of ‘rotation speed’ in rad/s
Acceleration Vector (100Hz) Three axis of acceleration (gravity + linear motion) in m/s^2
Magnetic Field Strength Vector (20Hz) Three axis of magnetic field sensing in micro Tesla (uT)
Linear Acceleration Vector (100Hz) Three axis of linear acceleration data (acceleration minus gravity) in m/s^2
Gravity Vector (100Hz) Three axis of gravitational acceleration (minus any movement) in m/s^2
Temperature (1Hz) Ambient temperature in degrees celsius
Handy, right? So we placed this very nice sensor on its own breakout, complete with 3.3V regulator, logic level shifting for the Reset and I2C pins, an external 32.768KHz crystal (recommended for best performance), and breakouts for some other pins you might find handy. Comes assembled and tested, with a small piece of header. Some soldering is required to attach the header to the breakout PCB, but its pretty easy work. Best of all you can get started in 10 minutes with our handy tutorial on assembly, wiring, Arduino library and Processing graphical interface, and more!

Every Thursday is #3dthursday here at Adafruit! The DIY 3D printing community has passion and dedication for making solid objects from digital models. Recently, we have noticed electronics projects integrated with 3D printed enclosures, brackets, and sculptures, so each Thursday we celebrate and highlight these bold pioneers!

Have you considered building a 3D project around an Arduino or other microcontroller? How about printing a bracket to mount your Raspberry Pi to the back of your HD monitor? And don’t forget the countless LED projects that are possible when you are modeling your projects in 3D!

Check out all the Circuit Playground Episodes! Our new kid’s show and subscribe!

Have an amazing project to share? Join the SHOW-AND-TELL every Wednesday night at 7:30pm ET on Google+ Hangouts.

Join us every Wednesday night at 8pm ET for Ask an Engineer!

Learn resistor values with Mho’s Resistance or get the best electronics calculator for engineers “Circuit Playground”Adafruit’s Apps!

Maker Business — How Intel Makes a Chip

Wearables — Go magnetic

Electronics — LED colors: what they tell you

Biohacking — Brainding – Circuit Bending Using an EEG

Get the only spam-free daily newsletter about wearables, running a "maker business", electronic tips and more! Subscribe at AdafruitDaily.com !

No Comments

No comments yet.

Sorry, the comment form is closed at this time.