The UNO WiFi R3 ATmega328P ESP8266 is an all-in-one development board that combines traditional Arduino functionality with built-in WiFi connectivity. Designed for hobbyists, educators, and professionals, this board delivers dual-processing capability for creating WiFi-enabled projects without requiring multiple modules.
Key Features & Benefits:
- Dual Processors: Equipped with an ATmega328 for traditional Arduino functionality and an ESP8266 module for WiFi connectivity, providing enhanced processing power and flexibility.
- Integrated Voltage Regulation: Features onboard 5V and 3.3V regulators to seamlessly manage the different voltage requirements of the two processors.
- Versatile Connectivity: Offers a standard Arduino R3 header pinout so you can connect any Arduino-compatible shield, vastly expanding your project possibilities.
- Multiple Programming Modes: A built-in 8-position DIP switch allows you to easily select between four modes:
– Mode 1: Connects USB Serial to the ATmega328 for programming and serial monitoring.
– Mode 2: Directs USB Serial to the ESP8266 for programming the WiFi module.
– Mode 3: Routes USB Serial to the ESP8266 for serial communication.
– Mode 4: Enables serial communication between the ATmega328 and ESP8266, with built-in voltage level shifting. - Micro USB Interface: Uses a compact micro USB connector for easy connectivity and programming via a USB-to-micro USB cable.
- Onboard WiFi Antenna: Includes a built-in WiFi antenna with an option to connect an external antenna if greater range is required.
Applications:
– Ideal for IoT projects that require WiFi connectivity without the need for multiple modules.
– Suitable for educators and beginners looking for a cost-effective and feature-rich platform that supports standard Arduino shields.
– Perfect for prototypes and competitive projects requiring dual processing capabilities and integrated serial communication between processors.
Programming & Communication:
The board offers straightforward programming for both processors:
- Program the ATmega328 using the classic Arduino IDE, with simple examples like the Blink sketch to verify functionality.
- Configure the Arduino IDE for the ESP8266 to upload sketches (like a Blink program on an external LED via GPIO12) by adding the ESP8266 package manager URL in Preferences.
- Easily test and demonstrate inter-processor communication using provided sample sketches for serial data exchange between the ATmega328 and ESP8266.
Whether you’re building a smart home device, an IoT sensor, or a WiFi-controlled gadget, the UNO WiFi R3 ATmega328P ESP8266 development board delivers the integration and versatility you need in a single, compact package. Enjoy the convenience of standard Arduino compatibility combined with the connectivity advantages of the ESP8266, making your next project smarter, easier, and more connected.