Sure cpu&#x27;s are cheap, but the thinking in the embedded world is still - i&#x27;m making 20K of this(or maybe a lot more) , and if i save 50cents on the cpu - this is $10K so management will like this savings, even if it takes some work.<p>But actually , if you can replace the physical UI with a phone based UI using a cheap bluetooth mcu and some framework like blynk or simblee ,than you&#x27;ll have a decent ram&#x2F;flash and a cheaper product.