Why have these computers become so popular? There are many reasons:
- They are cheap
- Raspi costs ~ 30-50 euros depending where you buy it
- They are open source
- Try to find proprietary (= closed source) micro-controller as cheap as Arduino Uno
- Open sourcing has taken the price down
- GPIO (= General Purpose IO) pins
- All sort of electronic hobbies are possible via these pins
- They don't need a lot of room or power
- Low energy devices are suitable for IoT
- They can be driven remotely via for example SSH
Beaglebone Black is especially aimed at IoT
Raspberry Pi runs Raspbian Linux and works the
same way as Beaglebone Black
Arduino Uno is a micro-controller with no Linux
inside but the program code directly in the memory instead
GPIO pins are those with wires attached
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