The Arduino Leonardo looks like the UNO and is in many ways similar to it. But because it is based on the ATmega32u4, it has an advantage with built-in USB communication. This allows it to emulate computer peri
I've used a standard Arduino Uno. I'm just getting started, so I've only done the basics including messing with LEDs and timings. I'm looking forward to getting more complex projects going soon! I've done some bare metal programming on the raspberry pi in ARM. IE: no OS. But that...
I know David wants a computer that is somewhat unalterable to encourage a community to develop for it, but I think this version would offer the best of both worlds: you could use a circuit image (whatever the language is called for FPGAs) that is the hardware-exact stock machine(s) an...