Done! I've made several half starts at robotics projects, mostly based on Arduino but I always felt exasperated at how weak they were compared to the smartphon

Done! I've made several half starts at robotics projects, mostly based on Arduino but I always felt exasperated at how weak they were compared to the smartphone in my pocket, which I can already program over a zillion standard interfaces. Getting an Arduino kit with the equivalent of this functionality would cost hundreds of dollars ... this is a steal.