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by abroun
Tue Feb 18, 2014 7:42 pm
Forum: User groups and events
Topic: PiWars - Robotics competition coming in December 2014
Replies: 3
Views: 1452

Re: PiWars - Robotics competition coming in December 2014

Hi there, Some challenge categories I've been thinking of are Race - It can be a bit of an achievement just to get a robot moving, and races can be visually exciting so an autonomous robot race could be a good place to start. Subcategories could be a simple straight line backwards and forwards race,...
by abroun
Thu Jan 30, 2014 7:03 pm
Forum: For sale
Topic: Build a Raspberry Pi Camera Robot (Updated)
Replies: 15
Views: 38291

Build a Raspberry Pi Camera Robot (Updated)

Hi all, We've put together a tutorial which shows you how you can easily build an affordable Raspberry Pi Camera Robot that can be driven around using a web browser on a tablet, smart-phone or computer. All of the required software is provided as an SD card image, so it makes it really easy to get u...
by abroun
Tue Oct 15, 2013 8:38 am
Forum: Beginners
Topic: Will this be a good Raspberry PI robotic setup?
Replies: 6
Views: 2496

Re: Will this be a good Raspberry PI robotic setup?

Hello, First of all a bit of a disclaimer. I run a company, Dawn Robotics Ltd which sells some of the robot parts you're looking at, and so I'll mainly be pointing you towards stuff we happen to sell. However, we aim to stock only good quality products, and most of the stuff we stock is also sold by...
by abroun
Tue Oct 08, 2013 12:18 pm
Forum: Python
Topic: PWM with Python
Replies: 7
Views: 4908

Re: PWM with Python

Sorry for the delayed reply. With RPIO I can 'change' the pulse width as quickly, and as often as I want because as far as I can tell, I'm just changing the instructions that are executed by the DMA controller. I found out that the jitter I was observing was caused by a bug/feature in the Servo clas...
by abroun
Sat Oct 05, 2013 10:06 pm
Forum: Python
Topic: PWM with Python
Replies: 7
Views: 4908

Re: PWM with Python

Thanks for the replies. I should be ok without the sample code, but it's good to know that I'm heading along the same path as other people and it's good to hear about your experiences. I probably will use an external hardware solution such as the Adafruit chip, or a microcontroller for future projec...
by abroun
Sat Oct 05, 2013 4:40 pm
Forum: Python
Topic: PWM with Python
Replies: 7
Views: 4908

PWM with Python

Hi there, I'm trying to control some servos with the Pi using Python, and I'm just trying to work out what my options are in terms of existing libraries. So far the libraries I've found are RPi.GPIO - Implements software PWM (this seems very jittery on my Pi) RPIO - Provides DMA based PWM WiringPi2 ...

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