Description
Reviews
| Brand | - |
| Category | Robotics / STEM Teaching Tools / Development, Learning, Evaluation & Industrial Control Boards |
| Origin | - |
| Microcontroller | ESP8266EX |
| Flash Memory | 4MB (32Mbit) |
| Clock Speed | 80MHz / 160MHz |
| WiFi Standard | IEEE 802.11 b/g/n |
| Operating Voltage | 3.3V |
| Input Voltage | 5V via Micro USB |
| Digital I/O Pins | 17 |
| Analog Input Pins | 1 (A0) |
| Programming Language | Lua, C++, Arduino IDE |
| Interface | Micro USB, UART, SPI, I2C |
Anonymous
Mar 25, 2026
Rating: 5/5
Great connectivity range
I was surprised by how well the WiFi signal holds up even through walls. I used this to monitor temperature sensors in my garage, and the connection remains stable. Highly recommended.
Anonymous
Mar 24, 2026
Rating: 5/5
Perfect for IoT beginners
This NodeMCU board is exactly what I needed to start my smart home projects. It connects to WiFi instantly and the Lua firmware is pre-installed. Great value for the price.
Anonymous
Mar 07, 2026
Rating: 5/5
Easy setup process
As someone new to embedded systems, I found the setup incredibly straightforward. Drivers installed automatically on Windows 10, and I had my first LED blinking via WiFi in under 20 minutes.
Anonymous
Mar 05, 2026
Rating: 4/5
Solid board, minor pin labeling issue
The performance is excellent and stable. My only complaint is that some of the pin labels on the silkscreen are a bit small to read without a magnifier. Otherwise, it works flawlessly with the Arduino IDE.
Anonymous
Mar 04, 2026
Rating: 5/5
Essential for university projects
Bought five of these for our final year project. They are easy to program, cheap, and powerful enough for our data logging needs. The community support online is also huge.
Anonymous
Mar 01, 2026
Rating: 4/5
Good but gets warm
Functions perfectly for sending sensor data to the cloud. Note that it does get slightly warm during continuous WiFi transmission, but nothing concerning. Just ensure proper ventilation in your enclosure.
Q: How do I flash new firmware if the current one is corrupted?
A: You can use the ESPTOOL.py command-line utility or the NodeMCU PyFlasher tool. Hold the FLASH button while pressing RESET to enter boot mode, then upload the new firmware binary.
Q: Can I power this board directly with a 9V battery?
A: No, you should not connect a 9V battery directly to the Vin or 5V pin as it may damage the voltage regulator. Please use a regulated 5V source or a USB power bank.
Q: Does this come with a USB cable included?
A: Yes, the package includes a standard Micro USB cable for both power supply and programming purposes.
Q: What is the maximum current output for the 3.3V pin?
A: The onboard regulator can typically supply up to 600mA, but it is recommended to keep the load on the 3.3V pin below 200-250mA for stability, especially when WiFi is active.
Q: Is this board compatible with the Arduino IDE?
A: Yes, this ESP8266 NodeMCU V3 is fully compatible with the Arduino IDE. You simply need to add the ESP8266 board manager URL to your preferences and install the package.
Colored Paper Signing Board CP Autograph Panel Japanese Anime Drawing Paper Watercolor Paper Square Blank Signature Card for Markers Anime OC Hand-Drawn Cards
$10.80
Water Brush Pen Set Large Capacity Beginner Gouache Solid Watercolor Paint Brush Tools Line Drawing Art Student Supplies
$32.00
Custom Solid Wood Plaque - Antique Carved Wooden Sign for Shop Grand Opening, Doorway Decoration, Wood Carving, and Couplets
$50.00
Retainer Storage Case for Invisible Aligners, Children's Orthodontic Appliances, and Dentures - Portable Cleaning and Drainage Box for Elderly and Kids
$11.90
Manufacturer Supply 460 Fast-Drying Glue: High Viscosity, Instant Bond, Low Whitening, Odorless
$64.00
Large Commercial Electric Peeler - Automatic Peeling Machine for Fruits and Vegetables like Pineapple, Potato, Winter Melon, Pumpkin, and Cantaloupe
$615.00
DH-20AC Compressed Air Refrigerated Dryer - 2.6 Cubic Meters, High-Temperature Air-Cooled, Compact Air Compressor Dryer
$4,180.00
Large-Capacity Quilt Storage Bag for Clothes, Comforters, and Down Jackets; Compression Bag for Moving and Luggage
$3.50
No-Drill Invisible Cable Organizer, Self-Adhesive Wire Fixer, Data Line Clip for Cable Management and Network Routing
$3.31
Stainless Steel Polishing Needle for Agarwood and Sandalwood Beads, Handmade Incense Tool, DIY Incense Materials
$15.00
Rectangular Plastic Planter for Outdoor Balcony Gardening - Ideal for Vegetables and Strawberries
$75.50
Windshield Washer Pump for Mitsubishi Outlander 8L84-17664-AA
$81.28
Lotus DIY Handmade Soap Silicone Mold - Lotus Leaf, Root, and Seed Pod Designs for Soap Base and Baking
$4.93
Multi-Function Herbal Slicer and Dicer for Roots, Rhizomes, Vines, Leaves, and Branches | Slicing Machine for Acorus Tatarinowii, Dried Tangerine Peel, and Polygonatum
$500.00
Multifunctional Outdoor Water Bag Swimming Float Maijia Qian Safety Buoy 10KG Tent Ballast Water Storage Bag
$21.89
Natural Mint Aromatherapy Incense, Osmanthus and Gardenia Scents, Mugwort Stick Incense for Bedroom, Refreshing and Sleep-Aiding
$6.43
Factory Stock Kubu Asu Washing Machine - Commercial Canned Fruit Hawthorn and Cherry Bubble Cleaning Equipment
$7,066.00
No More Games - Leslie Cheung & Koji Tamaki Saxophone Cover with City Pop Sheet Music and Backing Track
$26.00
2026 New Year Rubbing Art Kit - DIY Craft Material Set with Horse Year Fu Character Stencils for Kindergarten
$3.98
Used Car Tires 185 195 205 215 235/55 60 70R13 14 15 16 Random Tread Pattern
$57.80
Sponge Stamp Painting Tools Stamping Rods Kindergarten Children's Art Supplies Mushroom Head Sponge Brushes
$3.50
Croma Portable Pocket Watercolor Sketchbook - 300g Cold-Press Paper for Acrylic Markers, Pen & Wash, and Travel Sketching
$14.20
PLC Control Cabinet Explosion-Proof Variable Frequency Drive Panel for Constant Pressure Water Supply
$6,098.00
Beginner Watercolor Painting Book with Line Art for Coloring, Featuring Zodiac and Martial Arts Themes
$5.53
Compact Home Range Hood - Portable USB Desktop Smoke Extractor for Living Room Hot Pot and BBQ Odor Removal
$41.00
Rubens Watercolor Paper, Starry Sky Watercolor Pad, High Absorption, 32K/16K/8K, Thickened 300g, Medium/Fine Grain for Art Students
$6.42
Commercial Pasteurization Machine for Fresh Milk Bars and Dairy Farms - Stirring and Preservation Tanks (Large and Small Sizes Available)
$3,185.00
Handcrafted Sheepskin Rattle & Peach Wood Shaker - Pure Copper Brass Bells, Vintage Wooden Toy Safe for Infant Chewing
$31.50
RIDE ON TIME Tatsuro Yamashita Mr. Fuki Saxophone Trio Accurate Transcription Service
$34.00
Metal Unveiling Stand for Ribbon-Cutting Ceremonies - Vertical Display Rack for Grand Openings, Advertising Signs, and Plaques
$159.00
![[Youxin Electronics] GP2Y0E03 Infrared Distance Sensor Module 4-50cm Range](https://www.gosteppe.com/cache/medium/product/74667/legacy-main-4da8cadc5fc82afe91b124e3.webp)
![[Trial Pack] Xianlang Complete Cat Treat Sticks Meal Packs Main Course Cans Freeze-Dried Cat Food Sample Snacks Gift Set](https://www.gosteppe.com/cache/medium/product/208273/legacy-main-9ec245ebf781f65a434ba854.webp)
