Buy arduino boards online india
The Arduino Uno R3 Compatible Board is one of the most widely used microcontroller development boards in electronics education and prototyping. It is built around the ATmega328P — an 8-bit AVR microcontroller from Microchip — running at a clock speed of 16MHz. If you are just getting started with embedded systems or arduino projects, this board is practically the industry-standard starting point.
The board operates at 5V logic and can be powered through a USB cable, a DC barrel jack (7–12V recommended), or directly through the Vin pin. Onboard voltage regulators handle the conversion, so you don’t need an external power supply for most experiments. You get 14 digital I/O pins for connecting components like LEDs, relay module, push buttons, and display module. Six of these digital pins support PWM output, which allows you to simulate analog signals — useful for controlling servo motors or adjusting LED brightness without additional hardware.
Memory-wise, the ATmega328P carries 32KB of Flash for your program code, 2KB of SRAM for variables at runtime, and 1KB of EEPROM for storing small amounts of persistent data such as configuration settings or calibration values.
The board also includes a USB-to-serial converter chip for programming directly from a computer via the Arduino IDE — no external programmer needed. StemVolt offers this board as a practical, cost-effective option for Arduino and microcontroller learners, engineering students who want a dependable Uno-compatible board for day-to-day prototyping.
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Features:
- ATmega328P at 16MHz — widely supported microcontroller with a vast library ecosystem in the Arduino IDE
- 6 PWM-capable digital pins — generate variable-duty-cycle signals for motor speed control, LED dimming, or audio output
- 3.3V regulated output pin (50mA) — power low-voltage modules like ESP8266, Bluetooth modules, or sensors directly from the board
- Onboard USB-to-serial converter — connect to PC and upload directly without any separate programmer hardware
- Standard Arduino Uno R3 form factor — compatible with existing shields and expansion modules
- 1KB EEPROM — store persistent data that remains after power loss, useful for settings and calibration values
Technical Specifications:
| Specification | Details |
|---|---|
| Model Type | Arduino Uno R3 Compatible Board |
| Microcontroller Chip | ATmega328P |
| Operating Voltage | 5V |
| Input Voltage (Recommended) | 7V – 12V |
| Digital I/O Pins | PWM Pins  | Analog Pins | 14 pin  | 6 pin  |  6 pin |
| Clock Speed | 16 MHz |
| Flash Memory | 32 kB |
| EEPROM | 1 kB |
| SRAM | 2 kB |
Applications:
- Electronics learning — the go-to board for engineering students and beginners learning
- Sensor interfacing projects — connect temperature, humidity, gas, ultrasonic, and IR sensors for data acquisition experiments
- Motor and actuator control — drive DC motors via L298N modules, control servo motors with PWM, or operate stepper motors with a driver board
- Home automation prototyping — build relay-controlled switching circuits for lights, fans, and appliances in proof-of-concept setups
- Display interfacing — drive 16×2 LCD, OLED modules, or 7-segment displays for readout and user interface projects
- Communication module integration — pair with HC-05 Bluetooth, NRF24L01, or SIM800L GSM modules for wireless data transfer projects
Package Includes:
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1 × Arduino Uno R3 Compatible Board
Frequently Asked Questions:
1. What is the Arduino Uno R3 Compatible Board and what can I use it for?
The Arduino Uno R3 Compatible Board is an open-source microcontroller board built around the ATmega328P chip. It’s widely used for learning embedded systems, building electronics modules, and prototyping circuits. Whether you’re blinking LEDs, reading sensors, or controlling motors, this board gives beginners and experienced developers a reliable platform to experiment and build real-world arduino projects.
2. Is this Arduino Uno R3 Compatible Board fully supported by the Arduino IDE?
Yes, it works seamlessly with the Arduino IDE just like the original. Simply select “Arduino Uno” from the board manager, choose the correct COM port, and you’re ready to upload code. No extra drivers or configurations are needed in most cases. It’s a genuinely cost-effective alternative for students and makers who want the full Arduino experience without spending extra.
3. Can absolute beginners use this Arduino Uno board for learning electronics?
Absolutely. This board is one of the most beginner-friendly microcontroller options available. At StemVolt, we recommend it specifically for Arduino & Microcontroller Learners because of its straightforward pinout, built-in onboard LED, and massive community support. You’ll find thousands of free tutorials, project guides, and libraries online that make learning electronics feel approachable rather than overwhelming.
4. What kind of arduino projects can I build with this Compatible Board?
You can build a wide range of projects — from simple LED controllers and temperature monitors to line-following robots, home automation systems, and IoT prototypes. The ATmega328P microcontroller offers 14 digital I/O pins and 6 analog inputs, giving you enough flexibility to interface with sensors, displays, motor drivers, and various other electronics modules commonly used in robotics and maker projects.
5. How is this Arduino Uno R3 Compatible Board different from the original Arduino Uno?
Functionally, they are nearly identical. The compatible version uses the same ATmega328P microcontroller, follows the same form factor, and supports the same shields and libraries. The primary difference is the price — this board is significantly more affordable, making it a practical choice for students building multiple project setups or educators equipping an entire classroom without stretching the budget.
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