Product Description
- This is a WeMos ESP8266 D1 R2 V2.1.0 WiFi Development Board. It is a WiFi-enabled board that uses the Arduino layout and operates at 3.3V.
- The board has an ESP8266 chip, which is a 32-bit processor with a larger flash memory than an Arduino Uno. It has 11 digital I/O pins and one analog input pin. You can connect the board with a Micro-B type USB cable.
- The D1 R2 is compatible with the Arduino IDE and NodeMCU, which are development platforms for the ESP8266EX chip. The board also has an onboard switching power supply that allows you to power it from a source up to 12V.
Features
- Based on the ESP-8266EX.
- Arduino Compatible, you can use it on Arduino IDE.
- NodeMcu Compatible
Specification:
| Digital I/O Pins | 11 |
|---|---|
| Operating Voltage (VDC): | 3.3 |
| Analog I/O Pins | 1 |
| Flash Memory | 4 MB |
| Dimensions (LxWxH) mm | 68x54x12 |
| Weight (g): | 20 |
Package Includes
- 1 x WeMos ESP8266 D1 R2 V2.1.0 WiFi Development Board.
- ESP8266EX Datashee
- ESP8266 Technical Reference
- ESP8266 AT Command Examples
- ESP8266 AT Instruction Set
WeMos ESP8266 D1 R2 V2.1.0 WiFi Development Board Overview
The WeMos ESP8266 D1 R2 V2.1.0 is a WiFi-enabled development board built around the ESP8266EX microcontroller. Designed in an Arduino Uno form factor and operating at 3.3V, it’s ideal for rapid prototyping of IoT and networked applications.
Key Features of WeMos ESP8266 D1 R2 V2.1.0 WiFi Development Board
- ESP8266EX 32-bit MCU with built-in 802.11b/g/n WiFi radio
- 11 digital I/O pins (all support PWM, interrupts, I²C and one-wire except D0)
- Single analog input pin (A0) with onboard ADC
- 4 MB flash memory for firmware and data storage
- On-board switching power supply: accepts 9–12 V input, outputs 5 V at up to 1 A
- Arduino IDE and NodeMCU compatible, using standard Micro-USB connection
- Genuine product with fast shipping from Zbotic
Applications and Use Cases
- Home automation nodes controlling lights, relays or sensors over WiFi
- Custom web server hosting simple dashboards or control panels
- Wireless data logging stations for temperature, humidity or air quality
- Remote-controlled robots and IoT-enabled gadgets
- Prototype development for smart appliances and wearables
How to Use WeMos ESP8266 D1 R2 V2.1.0 WiFi Development Board
Plug the board into your PC using a Micro-USB cable, install the ESP8266 board package in the Arduino IDE, then select “WeMos D1 R2” as your target. Upload sketches that leverage the 11 digital I/O pins and A0, or power externally via the VIN pin (9–12 V) to drive 5 V peripherals and the ESP8266’s 3.3 V rail.
Why Buy from Zbotic?
- Genuine Products: All items sourced from authorized distributors
- Fast Shipping: Orders ship within 24 hours with tracking (non backordered products)
- Free Shipping: Free delivery on qualifying orders
- COD Available: Cash on Delivery, UPI, cards, net banking
- Technical Support: Expert help for setup and troubleshooting
- Easy Returns: Hassle-free replacement for defective products
Frequently Asked Questions
Can I program the D1 R2 with the standard Arduino IDE?
Yes. After installing the ESP8266 board definitions via the Boards Manager in Arduino IDE, simply choose “WeMos D1 R2” and upload your sketch over USB.
What power options are available on the WeMos D1 R2?
You can power it through the Micro-USB port from 5 V USB or feed 9–12 V into VIN. The onboard switching regulator provides 5 V/1 A and the required 3.3 V for the ESP8266.
Which peripherals can I connect to the digital pins?
All 11 digital I/O pins (except D0) support PWM outputs, interrupt triggering, I²C communications and one-wire protocols, making them versatile for sensors, LEDs, relays and more.
Technical Specifications
| Model | ESP8266 |
|---|---|
| Interface / Protocol | WiFi |
| SKU | AI0257 |
| Weight | 0.024 kg |
| Availability | In Stock |
Applications & Use Cases
The WeMos ESP8266 D1 R2 V2.1.0 WiFi Development Board is a versatile other esp wifi modules used across a wide range of applications including WiFi connectivity for microcontrollers, IoT sensor nodes, remote monitoring, OTA firmware updates, and cloud-connected devices.
Common use cases:
- Adding WiFi to an existing Arduino project
- Building a cloud-connected weather station
- Enabling remote firmware updates
This product is ideal for IoT developers and electronics hobbyists.
Technical Tip: ESP-WROOM-32 modules need proper decoupling capacitors and antenna clearance for reliable WiFi performance.
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
Ankit Solanki (verified owner) –
Okay WeMos ESP8266 D1 R2 V2.1.0 WiFi. Took time to figure out the pin mapping but functional.
Girish Yadav (verified owner) –
Superb WeMos ESP8266 D1 R2 V2.1.0 WiFi! Using it for my weather monitoring station. WiFi range is impressive.
Piyush Iyer (verified owner) –
This WeMos ESP8266 D1 R2 V2.1.0 WiFi is a beast for the price. Running a web server on it with no issues.
Nandini Kohli (verified owner) –
This WeMos ESP8266 D1 R2 V2.1.0 WiFi is a beast for the price. Running a web server on it with no issues.
Aayush Kumar (verified owner) –
Good
Harshit Dave –
Superb WeMos ESP8266 D1 R2 V2.1.0 WiFi! Using it for my weather monitoring station. WiFi range is impressive.
KIRTI RANJAN BEHERA (verified owner) –
Best Arduino board
Kartik Khurana (verified owner) –
This WeMos ESP8266 D1 R2 V2.1.0 WiFi is a beast for the price. Running a web server on it with no issues.
Rohan Saini (verified owner) –
Nice WeMos ESP8266 D1 R2 V2.1.0 WiFi for IoT prototyping. Breadboard compatible which is a plus.
Karan Trivedi (verified owner) –
Excellent for smart home projects. This WeMos ESP8266 D1 R2 V2.1.0 WiFi connects reliably to my router.
Sandhya Mehta (verified owner) –
Excellent WeMos ESP8266 D1 R2 V2.1.0 WiFi! WiFi connectivity is strong and stable. Perfect for IoT projects.
J.VENKATRAMAN Jagadheesan (verified owner) –
Sandhya Arora –
Outstanding WeMos ESP8266 D1 R2 V2.1.0 WiFi! Programmed it with Arduino IDE. All features work as documented.
Mukesh Nair (verified owner) –
Outstanding WeMos ESP8266 D1 R2 V2.1.0 WiFi! Programmed it with Arduino IDE. All features work as documented.
Vaishali Singh (verified owner) –
Great quality WeMos ESP8266 D1 R2 V2.1.0 WiFi. Flashed with ESPHome and it works beautifully.
Atharv Agarwal (verified owner) –
Great WeMos ESP8266 D1 R2 V2.1.0 WiFi. OTA updates work perfectly. Using 5 of these around my house.
Vijay Dave (verified owner) –
Excellent WeMos ESP8266 D1 R2 V2.1.0 WiFi! WiFi connectivity is strong and stable. Perfect for IoT projects.
Riya Sen (verified owner) –
Nice WeMos ESP8266 D1 R2 V2.1.0 WiFi for IoT prototyping. Breadboard compatible which is a plus.