Description:
he Uno WiFi R3 ATmega328p + NodeMCU ESP8266 (8MB Memory) USB-TTL CH340G Compatible with Arduino UNO offers full integration on a single board, combining the Uno R3 ATmega328 microcontroller with the ESP8266 WiFi module featuring 8MB of memory. These modules can operate together or independently, with separate pinout headers for each, providing flexibility for your projects.
This board is an ideal solution for developing projects that require both the Uno and WiFi capabilities. You can easily update sketches and firmware for both the ATmega328 and the ESP8266 via USB. The onboard USB-to-serial converter (CH340G) facilitates programming and communication.
As a modernized version of the classic Arduino UNO R3, this board integrates the ATmega328 microcontroller and the ESP8266 WiFi chip on one compact platform. Each microcontroller includes dedicated pins for connecting peripheral sensors and modules.
The board also features a DIP switch that allows you to select the communication modes between the ATmega328 and the ESP8266, making it easy to switch between different configurations—whether for USB and ATmega328, USB and ESP8266, or ATmega328 and ESP8266 communication.
This design offers a convenient and streamlined approach for developing new IoT projects that require WiFi connectivity.
Table DIP- switch:
| Connection | 1 | 2 | 3 | 4 | 5 | 6 | 7 |
|---|---|---|---|---|---|---|---|
| ATmega328<->ESP8266 | ON | ON | OFF | OFF | OFF | OFF | OFF |
| USB <->ATmega328 | OFF | OFF | ON | ON | OFF | OFF | OFF |
| USB<->ESP8266 (Update firmware or sketch) | OFF | OFF | OFF | OFF | ON | ON | ON |
| USB<->ESP8266 (communication) | OFF | OFF | OFF | OFF | ON | ON | OFF |
| All independent | OFF | OFF | OFF | OFF | OFF | OFF | OFF |
Features:
- USB-TTL Converter
- USB5V (500mA max.) Power IN
- Logic Level: 5V
- Operating Supply Voltage: 5V
- Digital I/O Pins: 14
- Analog I/O Pins: 6
- Interface Type: Serial
- Operating Temperature: −40С° / +125С°
Additional Information:
| Microcontroller | ATmega328IC |
|---|---|
| Wi-Fi Module | ESP8266 |
| Input supply voltage (V) | 3.3 ~ 5 |
| Current consumption (mA) | 800 |
| USB to serial converter | CH340G |
| VIN/DC Jack (V) | 9 ~ 24 |
| WiFi | 802.11 b/g/n 2.4 GHz |
| USB type | Micro USB |
| USB Clock Frequency (MHz) | 16 |
| Memory Size (MB) | 8 |
Package Includes:
- 1 x Uno WiFi R3 ATMEGA328p NodeMCU ESP8266 Compatible for Arduino UNO
Attachments:
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| Interface / Protocol | USB, WiFi, BLE |
|---|---|
| SKU | AI0341 |
| Weight | 0.03 kg |
| Availability | In Stock |
Applications & Use Cases
The Uno WiFi R3 ATMEGA328P NodeMCU ESP8266 8MB Memory USB-TTL CH340G Compatible for Arduino UNO is a versatile boards compatible with arduino used across a wide range of applications including electronics learning, robotics, home automation, sensor interfacing, and motor control.
Common use cases:
- Learning programming and electronics
- Building a line-following robot
- Creating a home automation hub
This product is ideal for students, hobbyists, and electronics beginners.
Technical Tip: Arduino Uno is the standard learning board. Mega offers more pins for complex projects. Nano suits breadboard prototyping.
Shipping & Delivery
- Free shipping on orders above ₹999 across India
- Dispatched within 1-3 business days
- Expected delivery: 3-7 business days depending on location
- Secure packaging to ensure safe transit of electronic components
Naveen Rao (verified owner) –
Great quality Uno WiFi R3 ATMEGA328P NodeMCU ESP8266. Uploaded my first sketch and it worked flawlessly. Ideal for beginners.
Nikhil Shah –
Excellent Uno WiFi R3 ATMEGA328P NodeMCU ESP8266! Perfect for my Arduino project. All pins working correctly.
Kunal Hegde (verified owner) –
Great Uno WiFi R3 ATMEGA328P NodeMCU ESP8266 for my college mini project. Got good marks thanks to this working perfectly!
Ankur Saxena (verified owner) –
Nice Uno WiFi R3 ATMEGA328P NodeMCU ESP8266 for the price. Using it in my college project, performs well.
Ishan Rajan (verified owner) –
Decent quality Uno WiFi R3 ATMEGA328P NodeMCU ESP8266. Some pins needed cleaning but works fine now.
Lalit Deshpande (verified owner) –
Nice Uno WiFi R3 ATMEGA328P NodeMCU ESP8266 for the price. Using it in my college project, performs well.
Sumit Bhatt (verified owner) –
Fantastic Uno WiFi R3 ATMEGA328P NodeMCU ESP8266! All GPIO pins tested and working. Great for prototyping.
Rashmi Srivastava –
This Uno WiFi R3 ATMEGA328P NodeMCU ESP8266 is genuine quality. My students love working with it in our robotics lab.
Ashish Mukherjee (verified owner) –
This Uno WiFi R3 ATMEGA328P NodeMCU ESP8266 is genuine quality. My students love working with it in our robotics lab.
Chetan Joshi (verified owner) –
Nice Uno WiFi R3 ATMEGA328P NodeMCU ESP8266 for the price. Using it in my college project, performs well.
Farhan Modi –
Good Uno WiFi R3 ATMEGA328P NodeMCU ESP8266. Works well with Arduino IDE. Headers could be soldered more neatly.
Gauri Ghosh –
Superb Uno WiFi R3 ATMEGA328P NodeMCU ESP8266! Compatible with all my existing Arduino shields and libraries.
Vijay Kohli (verified owner) –
Fantastic Uno WiFi R3 ATMEGA328P NodeMCU ESP8266! All GPIO pins tested and working. Great for prototyping.
Sandhya Reddy (verified owner) –
Average quality Uno WiFi R3 ATMEGA328P NodeMCU ESP8266. Functional but packaging was minimal.
Varun Chopra (verified owner) –
Very satisfied with this Uno WiFi R3 ATMEGA328P NodeMCU ESP8266. Fast shipping and genuine components. Zbotic is the best!
Vivek Reddy (verified owner) –
Pretty good Uno WiFi R3 ATMEGA328P NodeMCU ESP8266. Compatible with most libraries. Happy with the purchase.
Kabir Dave (verified owner) –
Great quality Uno WiFi R3 ATMEGA328P NodeMCU ESP8266. Uploaded my first sketch and it worked flawlessly. Ideal for beginners.
Ananya Trivedi (verified owner) –
Good Uno WiFi R3 ATMEGA328P NodeMCU ESP8266. Works well with Arduino IDE. Headers could be soldered more neatly.
Rashmi Bhat (verified owner) –
Love this Uno WiFi R3 ATMEGA328P NodeMCU ESP8266. Using it for my home automation project, very reliable.
Kapil Bisht (verified owner) –
This Uno WiFi R3 ATMEGA328P NodeMCU ESP8266 made my robotics project so much easier. Highly recommended for students.
Parth Malhotra (verified owner) –
Decent quality Uno WiFi R3 ATMEGA328P NodeMCU ESP8266. Some pins needed cleaning but works fine now.
Suresh Das –
Nice Uno WiFi R3 ATMEGA328P NodeMCU ESP8266 for the price. Using it in my college project, performs well.
Jay Joshi (verified owner) –
Please add infomation table to the website
Nitin Batra –
Fantastic Uno WiFi R3 ATMEGA328P NodeMCU ESP8266! All GPIO pins tested and working. Great for prototyping.
Aisha Reddy –
This Uno WiFi R3 ATMEGA328P NodeMCU ESP8266 is genuine quality. My students love working with it in our robotics lab.