Original Arduino UNO R4 WIFI
Overview
The Original Arduino UNO R4 WIFI is a microcontroller board that combines the classic Arduino UNO design with built-in Wi-Fi capabilities, enabling users to connect and control their projects wirelessly. This board is based on the ATmega328P microcontroller and is fully compatible with the Arduino IDE.
Functionality
| The Arduino UNO R4 WIFI is a versatile board that can be used for a wide range of applications, including |
With built-in Wi-Fi, users can connect their projects to the internet and interact with them remotely.
The board can be used to automate various tasks, such as home automation, robotics, and more.
The Arduino UNO R4 WIFI is an ideal platform for prototyping and testing new ideas.
The board is suitable for educational institutions and makerspaces, providing a hands-on learning experience for students and enthusiasts.
Key Features
Wi-Fi Capabilities
| The ESP8266 Wi-Fi module on the Arduino UNO R4 WIFI enables the board to connect to Wi-Fi networks and communicate with other devices. The Wi-Fi capabilities include | |
| Wi-Fi Station Mode | Connect to an existing Wi-Fi network |
| Wi-Fi Access Point Mode | Create a Wi-Fi hotspot |
| Wi-Fi Client Mode | Connect to a Wi-Fi network as a client |
Create a soft access point
Software
The Arduino UNO R4 WIFI is fully compatible with the Arduino IDE, which provides an intuitive development environment for users to write and upload code to the board. The board also supports various programming languages, including C, C++, and Python.
Dimensions and Weight
68.6 mm
53.4 mm
15.2 mm
25 grams
Power Consumption
5V
200 mA (average)
Certifications and Compliance
CE (Conformit Europene) certified
FCC (Federal Communications Commission) compliant
RoHS (Restriction of Hazardous Substances) compliant
Warranty and Support
The Original Arduino UNO R4 WIFI comes with a 1-year warranty and dedicated support from the Arduino community and official documentation.
Original Arduino UNO R4 WIFI DocumentationThe Original Arduino UNO R4 WIFI is a microcontroller board based on the ATmega328P microchip, featuring built-in WiFi capabilities. This board is a modified version of the classic Arduino UNO, with an added WiFi module, allowing for wireless communication and connectivity.Features:Microcontroller: ATmega328P
WiFi Module: ESP8266
Operating Frequency: 2.4 GHz
WiFi Standards: 802.11 b/g/n
Data Transfer Rate: Up to 72.2 Mbps
Flash Memory: 32 KB
SRAM: 2 KB
EEPROM: 1 KB
Digital I/O Pins: 14
Analog Input Pins: 6
DC Power Jack: Yes
USB Connection: YesCode Examples:### Example 1: Simple WiFi ConnectivityThis example demonstrates how to connect to a WiFi network using the Original Arduino UNO R4 WIFI.```cpp
#include <WiFi.h>const char ssid = "your_ssid"; // Replace with your WiFi network SSID
const char password = "your_password"; // Replace with your WiFi network passwordvoid setup() {
Serial.begin(9600);// Connect to WiFi network
WiFi.begin(ssid, password);
while (WiFi.status() != WL_CONNECTED) {
delay(1000);
Serial.println("Connecting to WiFi...");
}Serial.println("Connected to WiFi");
Serial.println("IP address: ");
Serial.println(WiFi.localIP());
}void loop() {
// No operation in this example
}
```### Example 2: Sending Data to a Web Server using HTTPThis example demonstrates how to send data to a web server using the Original Arduino UNO R4 WIFI.```cpp
#include <WiFi.h>
#include <WiFiClient.h>const char ssid = "your_ssid"; // Replace with your WiFi network SSID
const char password = "your_password"; // Replace with your WiFi network password
const char serverUrl = "http://example.com/data"; // Replace with your server URLWiFiClient client;void setup() {
Serial.begin(9600);// Connect to WiFi network
WiFi.begin(ssid, password);
while (WiFi.status() != WL_CONNECTED) {
delay(1000);
Serial.println("Connecting to WiFi...");
}Serial.println("Connected to WiFi");
}void loop() {
if (client.connect(serverUrl, 80)) {
// Send HTTP request
client.println("GET " + String(serverUrl) + "?data=hello HTTP/1.1");
client.println("Host: " + String(serverUrl));
client.println("Connection: close");
client.println();// Read server response
while (client.available()) {
char c = client.read();
Serial.write(c);
}client.stop();
} else {
Serial.println("Connection failed");
}delay(10000);
}
```### Example 3: Reading Data from a Web Server using HTTPThis example demonstrates how to read data from a web server using the Original Arduino UNO R4 WIFI.```cpp
#include <WiFi.h>
#include <WiFiClient.h>const char ssid = "your_ssid"; // Replace with your WiFi network SSID
const char password = "your_password"; // Replace with your WiFi network password
const char serverUrl = "http://example.com/data"; // Replace with your server URLWiFiClient client;void setup() {
Serial.begin(9600);// Connect to WiFi network
WiFi.begin(ssid, password);
while (WiFi.status() != WL_CONNECTED) {
delay(1000);
Serial.println("Connecting to WiFi...");
}Serial.println("Connected to WiFi");
}void loop() {
if (client.connect(serverUrl, 80)) {
// Send HTTP request
client.println("GET " + String(serverUrl) + " HTTP/1.1");
client.println("Host: " + String(serverUrl));
client.println("Connection: close");
client.println();// Read server response
while (client.available()) {
char c = client.read();
Serial.write(c);
}client.stop();
} else {
Serial.println("Connection failed");
}delay(10000);
}
```These examples demonstrate the basic usage of the Original Arduino UNO R4 WIFI, including WiFi connectivity, sending data to a web server, and reading data from a web server.