There are a wide variety of controller boards that we can use for our hardware projects. The two most popular among them are: Arduino and Raspberry Pi.
Arduino is based on the ATmega family and has a relatively simple design and software structure. Raspberry Pi, basically is a single-board computer. Both of them have a CPU which executes the instructions, timers, memory and I/O pins. The key distinction between the two is that Arduino tends to have a strong I/O capability which drives external hardware directly. Whereas Raspberry Pi has a weak I/O which requires transistors to drive the hardware.
Let’s see the difference between Arduino and Raspberry Pi :-
| S No. | Arduino | Raspberry Pi |
|---|---|---|
| 1. | Control unit of Arduino is from Atmega family. | While control unit of Raspberry Pi is from ARM family. |
| 2. | Arduino is based on a microcontroller. | While Raspberry Pi is based on a microprocessor. |
| 3. | It is designed to control the electrical components connected to the circuit board in a system. | While Raspberry Pi computes data and produces valuable outputs, and controls components in a system based on the outcome of its computation. |
| 4. | Arduino boards have a simple hardware and software structure. | While Raspberry Pi boards have a complex architecture of hardware and software. |
| 5. | CPU architecture: 8 bit. | CPU architecture: 64 bit. |
| 6. | It uses very less RAM, 2 kB. | While Raspberry Pi requires more RAM, 1 GB. |
| 7. | It clocks a processing speed of 16 MHz. | While Raspberry Pi clocks a processing speed of 1.4 GHz. |
| 8. | It is cheaper in cost. | While Raspberry Pi is expensive. |
| 9. | It has a higher I/O current drive strength. | While Raspberry Pi has a lower I/O current drive strength. |
| 10. | It consumes about 200 MW of power. | While it consumes about 700 MW of power. |
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