Screen&#x27;s not so bad.<p>You can select a difficult small amount of memory for code and storage with slow CPU and slow access to bulk storage with an arduino, or somewhat complicated I&#x2F;O and software stacks with high power use on a RaspPi.<p>There&#x27;s a hole in the market around many megs of storage and a tenth of a watt or so of power and 10 MIPS of non DSP or so.  Below there&#x27;s tons of offerings, and above there&#x27;s tons of offerings,  but in between theres not much.  Probably because there&#x27;s not many applications.  The world&#x27;s full of engine computers and toasters, and tablets and phones, but in between not so much.