Keyestudio ESP32-WROOM-32D Module Wi-Fi+BT+BLE MCU

The Keyestudio PRO MICRO is a compact and powerful microcontroller, with the "ATmega32U4" MCU at its core, offering advanced functionality for modern applications. Its onboard USB interface enables seamless PC connection, serving as a configurable keyboard or mouse. Supporting multiple power options and operating at 3.3V, it the PRO MICRO features the ATMEGA32U4-MU with built-in USB communication, eliminating the need for a secondary processor. Its user-friendly design facilitates easy integration into everyday objects, With its diverse range of I/O pins and comprehensive power options, the Keyestudio PRO MICRO is a reliable and versatile microcontroller board, suited for an extensive array of innovative projects and applications.

Features:

• Compact Size: The board is smaller in size, making it suitable for projects with space constraints or portable applications.
• MCU Core: Powered by the "ATmega32U4" MCU, providing enhanced performance and processing capabilities.
• USB Interface: Equipped with an embedded USB interface for seamless PC connectivity, enabling configuration as a keyboard or mouse.
• Power Options: Supports multiple power options, including micro USB and RAW GND interface (DC 7-9V), providing flexibility in power supply.
• Operating Voltage: Operates at a stable 3.3V, ensuring consistent and reliable performance.
• Built-in USB Communication: The ATMEGA32U4-MU features built-in USB communication, eliminating the need for an additional USB-Serial chip.
• Versatility: Can be easily configured for various applications, offering adaptability to meet project requirements.
• User-Friendly Integration: Designed for easy integration into everyday objects, enabling interactive projects and innovative possibilities.
• Customizable Physical Design: The absence of welded pin headers allows users to solder the pin headers themselves, tailoring the board's physical layout.

Description:

The Keyestudio PRO MICRO is a powerful microcontroller with enhanced functionality, akin to the Leonardo but in a smaller form factor. At its core lies the advanced "ATmega32U4" MCU, providing optimal performance for a diverse range of projects. Equipped with a USB interface, this microcontroller effortlessly connects to a PC, transforming into a configurable keyboard or mouse to cater to your needs. The PRO MICRO offers multiple power options, supporting both micro USB and RAW GND interface (DC 7-9V). Its operating voltage is 3.3V, ensuring stable and reliable performance. Standout from other Arduino boards, the ATMEGA32U4-MU boasts built-in USB communication, eliminating the requirement for a secondary processor. Versatile and interactive, the Keyestudio PRO MICRO seamlessly incorporates into everyday objects, fostering a world of innovation. The absence of welded pin headers facilitates physical design, allowing users to personalize and solder pin headers as needed. Moreover, this microcontroller arrives complete with two yellow 1*12 2.54 straight pins and a one-meter black micro USB cable for added convenience. Explore limitless possibilities with the Keyestudio PRO MICRO, where power, versatility, and creativity converge.

Principle of Work:

In 2005, Arduino boards were introduced in Italy with the goal of providing a single platform where non-technologists could obtain these boards and develop electronic devices that could interact with the environment using actuators and sensors. These boards are so simple to use that even the most inexperienced user can operate them. Arduino is Free hardware which is anything whose blueprints and specs are available for anybody to copy. This means that Arduino provides the framework so that any other individual or business can design their own boards, each of which can be unique yet function well when built upon the same framework. Free software is a computer program whose source code is available to anybody, allowing them to use and alter it as they see fit. In order to allow anyone to create apps for Arduino boards and provide them with a variety of utilities, Keyestudio PRO MICRO works with the Arduino IDE (Integrated Development Environment) platform. which you can use to program and upload your code (sketch) and do this using a Built-in USB Functionality without the need for any external programmer just write your code on Arduino IDE then press the upload button and the code will be on your board ready to be used.

Pinout of the Module:

Applications:

• IoT Systems: Leveraging its compact size and advanced functionality, the PRO MICRO is perfect for building IoT devices, connecting sensors and actuators to create smart and interconnected systems.
• Embedded Systems: As a powerful microcontroller, the PRO MICRO excels in embedded systems development, controlling, and managing various components in compact and efficient setups.
• Keyboard or Mouse: Its embedded USB interface allows seamless configuration as a responsive keyboard or mouse, offering a unique input solution for a wide range of projects.
• Windows PC Lock/Unlock Application: The PRO MICRO can be programmed to serve as a security key, allowing for convenient and secure PC lock and unlock functions.
• USB Trackpad: Utilize the microcontroller's capabilities to create a custom USB trackpad, providing precise and responsive control for various applications.
• USB Joystick: Implement the PRO MICRO as a USB joystick for gaming or remote control purposes, providing users with an immersive and engaging experience.
• Water Level Meter: Employ the PRO MICRO to build a water level meter, accurately monitoring water levels in tanks, reservoirs, or other liquid containers.
• Electric Bike: Utilize the microcontroller to control and manage electric bike components, offering improved performance and efficiency for electric mobility solutions.
• Creating a Wireless Keyboard: With its USB communication and configurability, the PRO MICRO can be used to design wireless keyboards, eliminating the need for physical connections.
• Automatic Pill Dispenser: Implement the microcontroller to create an automated pill dispenser, ensuring precise medication management for patients and caregivers.

Technical Details:

• CPU 8bit
• Microcontroller Atmega32u4
• Operating voltage 3.3V
• 5v regulating circuit
• Input voltage max. 9V
• Input Voltage:- 7-9V
• micro USB connection
• 9 x 10-bit Analog input pins
• 18 x digital I/O pins
• 5 x 8-bit PWM pins (part of the digital Pins)
• RX/TX serial port
• Flash Memory: 32KB
• SRAM: 2.5KB
• Clock Speed 16MHz
• PCB Dimensions: 35mm*18mm*2mm
• Weight: 2.6g
• Pin pitch:2.54mm

Resources:

• You might also want to look at: the reference for the Arduino language.
• Getting Started Tutorial
• The Sparkfun Version Tutorial
• Arduino Software

Comparisons:

The Keyestudio PRO MICRO offers a more compact and cost-effective solution for projects requiring USB communication. It features a different microcontroller with built-in USB capabilities, eliminating the need for a separate USB-to-serial converter. However, it may have a slightly different pin configuration compared to the Arduino UNO. Both boards provide analog input capabilities and are suitable for a wide range of projects, with the Keyestudio PRO MICRO being a particularly suitable option for space-constrained applications:

• Size and Form Factor: The Keyestudio PRO MICRO is considerably smaller in size compared to the Arduino UNO board. Its compact form factor makes it ideal for projects with limited space requirements.
• MCU Core: Both boards use different micro