Unlike Raspberry Pi, Arduino boards are micro-controllers, not full computers. They don’t run an entire operating system but simply execute written code interpreted by their firmware.

For example, the UDOO (Fig. 6) is a Kickstarter project that combines the Arduino expansion form factor with the functionality of Raspberry Pi, and essentially the BeagleBone.

Most Arduino boards have an ADC chip with a 10-bit resolution that can output values from 0 to 1023. Popular boards like the Arduino Uno, Nano, Micro, and Mega are great examples of this.

Raspberry Pi and Arduino get mentioned a lot in DIY projects, but they aren't interchangeable. It's important to know which one is better for different tasks.

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The organization has introduced the Raspberry Pi Pico, a $4 board meant to offer a gentle entry point for microcontrollers. Think of it more as a complement to a Pi aimed at tasks like analog input.

For all their hoopla, the GPIO pins on the Raspberry Pi aren’t terribly useful on their own. Sure, you can output digital data, but our world is analog and there just isn’t any ADCs or … ...

Arduino uses a microcontroller; Raspberry Pi uses an applications processor. There are some things a Raspberry Pi is better for (you can hook a Raspi up to a TV, for example), and loads of things ...

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