Adding Wi-Fi to a plain UNO project usually means bolting on a separate ESP8266 module, wiring up level shifters, and hoping the two boards talk to each other reliably. The Arduino UNO+WiFi R3 ATmega328P+Node MCU ESP8266 CH340G Compatible Board sidesteps that by combining both onto one board, available at Tech Depot India for Rs 591. You can order the Arduino UNO+WiFi R3 ATmega328P+Node MCU ESP8266 CH340G Compatible Board directly instead of sourcing two separate boards and wiring them together yourself.
What is the Arduino UNO+WiFi R3 ATmega328P+Node MCU ESP8266 CH340G Compatible Board?
The name is a mouthful, but it's really just listing its ingredients: an UNO-style R3 board built around the ATmega328P chip, paired on the same PCB with a Node MCU ESP8266 module for Wi-Fi, and a CH340G chip handling USB communication. In plain terms, it's an UNO-compatible board with wireless networking already built in, rather than added on afterwards.
That combination is aimed squarely at the pain point of "I want my UNO project online, but I don't want to manage two separate boards." Since it's UNO-compatible on the microcontroller side, existing UNO sketches and shields are expected to carry across the same way they would on a standard UNO. Full details are on the product page.
Arduino UNO+WiFi R3 ATmega328P+Node MCU ESP8266 CH340G Compatible Board projects — what you can build
- A home automation hub that needs both UNO-style pin control and Wi-Fi connectivity on one board
- A remote sensor node that logs readings to a cloud service or local server over Wi-Fi
- A notification system that pings your phone the moment a sensor condition is met
- Upgrading an existing UNO project to add wireless control without a full board swap and extra wiring
- A budget IoT prototype where keeping the component count — and the wiring — down actually matters
- A classroom project introducing both microcontroller basics and Wi-Fi connectivity together
WiFi board options compared
| Product | Price | Notes |
|---|---|---|
| Arduino UNO+WiFi R3 ATmega328P+Node MCU ESP8266 CH340G Compatible Board | Rs 591 | UNO-compatible board with built-in Wi-Fi, entry price point |
| Ameba RTL8722DM mini EVB Arduino WiFi Shield | Rs 3,120 | Wi-Fi shield add-on for Arduino boards |
| Arduino Mega 2560+WiFi R3 ATmega2560+Node MCU ESP8266 CH340G Compatible Board | Rs 1,746 | Same Wi-Fi combo approach, built on the larger Mega 2560 |
| Arduino MKR WIFI 1010 | Rs 4,810 | Official Arduino MKR-series Wi-Fi board |
How to get started with this board
If you've never worked with a combined UNO-plus-Wi-Fi board before, the good news is you don't need to treat it as two separate learning curves. Start by connecting the board over USB and confirming your development environment recognises it, exactly as you would with a plain UNO. From there, you'll typically program the ATmega328P side for your normal sensor and pin logic, while the ESP8266 side handles the network connection — the exact way these two communicate on this particular board is documented on the listing.
Since combined boards like this can vary in how the Wi-Fi module is addressed from your sketch, keep the product page open for reference, and cross-check any example code against your board's own documentation before you wire in sensors.
Arduino UNO+WiFi R3 ATmega328P+Node MCU ESP8266 CH340G Compatible Board specifications
For full and current Arduino UNO+WiFi R3 ATmega328P+Node MCU ESP8266 CH340G Compatible Board specifications, please refer to the product page before ordering.
Buy Arduino UNO+WiFi R3 ATmega328P+Node MCU ESP8266 CH340G Compatible Board Online in India
Tech Depot India ships this board pan-India, with dispatch from Bengaluru, Delhi NCR or Hyderabad reaching Mumbai, Chennai and beyond within 8-10 working days. If you're comparing the Arduino UNO+WiFi R3 ATmega328P+Node MCU ESP8266 CH340G Compatible Board Price in India, payment here is prepaid only, through Razorpay (UPI, cards or net-banking), with a GST invoice issued on every order. Makers hunting for the best Arduino UNO+WiFi R3 ATmega328P+Node MCU ESP8266 CH340G Compatible Board for a budget IoT build will find this combo hard to beat on price alone. Every board carries a 15-day warranty on manufacturing defects, reportable within 5 days of delivery. Reach us on WhatsApp or email techdepotindia@gmail.com for any questions, or browse the wider microcontrollers collection.
Frequently asked questions
What is the Arduino UNO+WiFi R3 ATmega328P+Node MCU ESP8266 CH340G Compatible Board Price in India?
It is priced at Rs 591 on Tech Depot India, with a GST invoice included on every order.
How long does delivery take?
Orders are dispatched from Bengaluru, Delhi NCR or Hyderabad and typically reach customers pan-India within 8-10 working days.
Is there a warranty on this board?
Yes, it carries a 15-day warranty against manufacturing defects, provided the issue is reported within 5 days of delivery.
What payment methods are accepted?
Payment is prepaid only, via Razorpay (UPI, cards or net-banking), and a GST invoice is issued with every order.
Will this board work with my existing UNO shields and sketches?
The microcontroller side follows the UNO-compatible layout, but always confirm exact pin and shield compatibility on the product page and your board's own documentation before wiring anything up.