Arduino UNO Ek एक R4 WiFi - Made in India

Arduino UNO Ek R4 WiFi – Made in India

The Arduino UNO Ek R4 WiFi – Made in India is a next-generation microcontroller development board designed for makers, students, engineers, robotics enthusiasts, and IoT developers. Built around the powerful Renesas RA4M1 Arm® Cortex®-M4 32-bit microcontroller running at 48MHz, this board delivers significantly higher performance than the classic Arduino UNO R3 while maintaining complete compatibility with the familiar UNO form factor and existing Arduino shields.

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Arduino UNO Ek R4 WiFi – Made in India

Integrated with the ESP32-S3 WiFi and Bluetooth 5.0 module, the UNO Ek R4 WiFi provides seamless wireless connectivity for IoT, automation, robotics, cloud monitoring, smart home applications, and wireless communication projects.

With advanced onboard peripherals such as a 14-bit ADC, 12-bit DAC, Real-Time Clock (RTC), Operational Amplifier (OPAMP), Memory Protection Unit (MPU), and USB HID support, this board eliminates the need for additional hardware in many embedded applications.

Whether you’re creating smart automation systems, industrial monitoring solutions, educational STEM projects, or advanced robotics, the Arduino UNO Ek R4 WiFi offers excellent performance, reliability, and ease of programming.

Key Features

  • Made in India Arduino UNO Ek R4 WiFi Development Board
  • Renesas RA4M1 Arm® Cortex®-M4 32-bit Processor
  • 48MHz Operating Frequency
  • ESP32-S3 Wireless Module
  • Built-in 2.4GHz WiFi
  • Bluetooth 5.0 Connectivity
  • Compatible with Arduino UNO R3 Shields
  • 5V Operating Voltage
  • 256KB Flash Memory
  • 32KB SRAM
  • 14-bit High Resolution ADC
  • 12-bit DAC Output
  • Integrated Real-Time Clock (RTC)
  • Built-in Operational Amplifier (OPAMP)
  • Memory Protection Unit (MPU)
  • USB Human Interface Device (HID) Support
  • Supports Keyboard and Mouse Emulation
  • Ideal for IoT, Robotics and Embedded Projects

Technical Specifications

Parameter Specification
Product Arduino UNO Ek R4 WiFi
Country of Origin Made in India
Microcontroller Renesas RA4M1 Arm Cortex-M4
Core 32-bit
Clock Speed 48 MHz
Wireless Module ESP32-S3
WiFi 2.4GHz IEEE 802.11 b/g/n
Bluetooth Bluetooth 5.0
Operating Voltage 5V
Flash Memory 256 KB
SRAM 32 KB
ADC Resolution 14-bit
DAC Resolution 12-bit
RTC Yes
OPAMP Yes
MPU Yes
HID Support Yes
USB Interface USB Type-C
Shield Compatibility Arduino UNO R3 Compatible

Product Overview

The Arduino UNO Ek R4 WiFi is a significant advancement over the classic Arduino UNO R3 platform. Designed with enhanced processing capabilities, expanded memory, and integrated wireless communication, it enables developers to build more powerful embedded systems without sacrificing compatibility.

Powered by the Renesas RA4M1 Arm Cortex-M4 processor, the board offers higher computational performance while maintaining a stable 5V operating environment suitable for existing Arduino ecosystems.

The onboard ESP32-S3 module enables fast WiFi and Bluetooth communication, allowing direct connection to cloud platforms, smartphones, mobile applications, and IoT servers.

Advanced analog peripherals including the 14-bit ADC and 12-bit DAC improve measurement accuracy and analog signal generation. The integrated RTC ensures accurate timekeeping even in data logging and scheduling applications.

Additionally, the board’s built-in USB HID capability allows it to function as a USB keyboard or mouse, opening possibilities for automation, gaming peripherals, accessibility devices, and custom control systems.

Applications

  • Internet of Things (IoT)
  • Smart Home Automation
  • Industrial Automation
  • Robotics Projects
  • STEM Education
  • Engineering Laboratories
  • Wireless Sensor Networks
  • Data Logging Systems
  • Weather Monitoring
  • Home Security Systems
  • Environmental Monitoring
  • Smart Agriculture
  • Remote Monitoring
  • Embedded System Development
  • Automation Controllers
  • USB Keyboard Projects
  • USB Mouse Projects
  • Human Interface Devices
  • Cloud-Based Monitoring
  • AI and Edge Computing Projects

Advantages

  • Faster 32-bit ARM Cortex-M4 processor
  • Integrated WiFi and Bluetooth connectivity
  • Compatible with existing Arduino UNO shields
  • High-resolution analog inputs
  • Digital-to-Analog Converter included
  • Built-in Real-Time Clock
  • USB Keyboard & Mouse functionality
  • More Flash and SRAM than Arduino UNO R3
  • Industrial-grade performance
  • Easy programming using Arduino IDE
  • Excellent for beginners and professionals

Package Includes

  • 1 × Arduino UNO Ek R4 WiFi – Made in India Development Board
Category:

Specification

Technical details for Arduino UNO Ek R4 Wifi

Microcontroller Renesas RA4M1 (Arm® Cortex®-M4)
USB USB-C®
Pins 14x Digital I/O Pins
6x Analog Input Pins
1x DAC
6x PWM Pins
Communication 1x USB (Programming Port)
1x UART
1x I2C
1x SPI
1x CAN Bus
Input Voltage 6 to 24V
Operating Voltage 5V
ESP32-S3 is 3.3 V
Current per I/O Pin 8mA
Clock Speed 48 MHz
ESP32-S3 up to 240 MHz
Memory RA4M1
256 KB Flash
32 KB SRAM
8 KB EEPROM

ESP32-S3
384 kB ROM
512 kB SRAM
Dimensions 68.58 x 53.34 mm

Board Layout

UNO Ek R4 mechanical drawing and board layout.

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