If you bought one of those cheap (£30) robot arms from Maplin a few years back (when there still was a Maplin) or find yourself in possession of one now, changes to Windows have made it feel like a bit of a paperweight.
When writing the book Learn Robotics Programming, I took the reader through choosing a motor controller, so they would be able to pick their own. I then made a recommendation for the Full Function Motor Hat - a motor hat available from Alibaba, eBay and Amazon from time to time. This hat is internationally available, but my preferred motor controller board, if you can purchase it is the 4Tronix PiConZero.
I am now in the final days before my PiWar 2019 journey, where I will be a reserve for the competition with my robot.
Time to build your own robot! Using a Raspberry Pi with parts and some time, you can use my book to learn how to make and program a robot with automatic behaviours.