![]() It can also send out analog signals as PWM – using this you can control devices with a variable voltage, such as dimming an LED, or reducing the speed of a motor. By sending a high or low value out, you can turn on LEDs, control stepper motors, and activate relays to turn on really high power devices. The Arduino can send digital signals out of its pins. It can output data over a USB serial connection to a computer, or other serial devices such as LCD screens of WiFi modules. It is designed to read data from sensors and switches, run computations on the data it collects, and send control data back out. The only functionality is has it what you specifically program it to do. The Arduino is a programmable microcontroller. The Raspberry Pi has had 2 new major releases since then! Arduino The Arduino Uno The Raspberry Pi is a mini-computer running a choice of different Linux operating systems, and the Arduino is a microcontroller – a barebones chip designed to run only the code you have programmed for it, without the overhead of a full operating system.Įdit: This post has been updated many times since the first release in 2013. ![]() They are both pretty cheap, the same size, and look very similar, however they are very different. ![]() The questions revolve around what the two boards actually do, and the target projects they are aimed for. The Arduino vs Raspberry Pi question is something that always crops up among beginners to the maker community.
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