In previous posts I start looked at using ScratchGPIO to control a junkbot - more about junkbots can be found at: http://junkbots.blogspot.com Previous Posts: ( http://junkbots.blogspot.com/2014/08/junkbot-pi-1-scratchgpio.html ) and showed a Pi controlled junkbot briefly in action ( http://junkbots.blogspot.co.uk/2014/08/junkbot-raspberry-pi-2-raspberry-pi.html ). In this post I aim to discuss - Choice of motor controller card - Provide an example of a drawing junkbot controlled through Scratch and Raspberrry Pi Choice of interface/Controller card The card chosen was the 4Tronix PiRoCon card ( http://4tronix.co.uk/store/index.php?rt=product/product&product_id=182 ). Selected for four reasons - Price is reasonable (in my opinion). - Fits straight onto the Pi through the GPIO - no extra cables needed. - ScratchGPIO has it as an addon so it makes programming it even easier (see http://cymplecy.wordpress.com/2013/10/31/pirocon-from-4tronix/ ). - Ot...
Robots and getting computers to work with the physical world is fun; this blog looks at my own personal experimenting and building in this area.