0

May 15, 2015 AT 10:00 am

Zumo George, a BDD rover made with Raspberry Pi #piday #raspberrypi @Raspberry_Pi

NewImage

Great article from RaspTut on building a BDD rover with a Raspberry Pi.

It is time to build a new rover, and to take a different look at how we can determine how it is controlled by a series of behaviours, defined using the tenets of Behaviour-Driven Development. BDD is a superb way to undertake development as it emphasises genuine communication and collaboration between business stakeholders, Developers and Testers. Behaviours are defined as features and scenarios, the latter elicited as specific examples using the Gherkin syntax, for example:

Scenario: Drive forwards

   Given Zumo George is greater than 10cm from a wall

   When power is applied to the motors

   Then Zumo George should drive forwards

BDD scenarios are written before other code, and determine what code is written. Hence no wastage: we develop what is required and it most likely passes first time. When the scenarios (the tests) are executed we can clearly see which steps pass (green), fail (red), or have not yet been implemented (that sort of muddy green-yellowy-brown).

I will be exploring the use of BDD to program this rover in quite some depth over a number of articles, intermixing some electronics to show how BDD is an ideal abstraction to explore behaviour-based robotic control. I’m going to term this BDR, Behaviour-Driven Robotics.

Read more.


998Each Friday is PiDay here at Adafruit! Be sure to check out our posts, tutorials and new Raspberry Pi related products. Adafruit has the largest and best selection of Raspberry Pi accessories and all the code & tutorials to get you up and running in no time!


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 — Transforming Today’s Bad Jobs into Tomorrow’s Good Jobs

Wearables — Snap a picture

Electronics — To Y5V or not to Y5V?

Biohacking — Quantified Bob’s Experience with Ketone Esters

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.