> For the complete documentation index, see [llms.txt](https://monasheng.gitbook.io/zerotohero/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://monasheng.gitbook.io/zerotohero/arduino-zero-to-hero.md). # Arduino Zero-to-Hero {% embed url="" %} Microcontrollers (MCUs) are miniature, lightweight computers that are typically used to perform low-level software/hardware interactions, for instance: * Interacting with sensors to read and process data, and, * Interacting with actuators to alter the physical world (e.g. by opening/closing valves, driving motors, etc.). There are many microcontrollers available for use, but the among most common and easy to use for beginners are the [Arduino ](https://www.arduino.cc/)family - which are open-source and are supported by wide range of third-party accessories/sensors/actuators and endless learning resources online. If you learn how to use an Arduino, you'll be able to extend this knowledge to other, more involved MCUs (e.g. the STM32 family).

Microcontrollers are much smaller than normal computers. For example, the Arduino Nano is about the size of a pinky! Image remixed from: https://blog.arduino.cc/2019/05/31/getting-started-with-the-new-arduino-nano-every/

## Learning Outcomes In this short course, you'll learn: * [x] how Arduino MCUs work, and the wide range of potential use cases for them, * [x] how to use the *Arduino IDE* to write code for Arduino MCUs and deploy this code to them by a process known as *flashing*, * [x] how to interact with Arduino MCUs in-operation using a *serial monitor*, and, * [x] how to use Arduino MCU input/output pins to provide constant/switched power, and interact with sensors and actuators. ## Module Capstone Project The capstone project for this module entails using an MCU to build a simple morse-code device that: * Reads human inputs from a button and potentiometer, and, * Acknowledges this input with: * a sound, and, * a mixable RGB light.