Home D1 Mini Nodemcu with ESP8266-12F WLAN module
D1 Mini Nodemcu with ESP8266-12F WLAN module - OpenELAB
D1 Mini Nodemcu with ESP8266-12F WLAN module - OpenELAB
D1 Mini Nodemcu with ESP8266-12F WLAN module - OpenELAB
D1 Mini Nodemcu with ESP8266-12F WLAN module - OpenELAB
D1 Mini Nodemcu with ESP8266-12F WLAN module - OpenELAB
D1 Mini Nodemcu with ESP8266-12F WLAN module - OpenELAB
D1 Mini Nodemcu with ESP8266-12F WLAN module - OpenELAB
D1 Mini Nodemcu with ESP8266-12F WLAN module - OpenELAB

D1 Mini Nodemcu with ESP8266-12F WLAN module

EU
Sale price €2,50
incl. VAT
SKU: TB-D1ES8266-MB
Type: MICRO-USB (Feeder pin not soldered)
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D1 Mini Nodemcu with ESP8266-12F WLAN module - OpenELAB

D1 Mini Nodemcu with ESP8266-12F WLAN module

Shipping & Delivery Information

🚚 In-Stock Items: Orders for in-stock products are shipped within 24 hours after the order is placed.

📦 Pre-order Items: If a product is marked as "Pre-order", it means it is currently out of stock. We'll dispatch your order once we have restocked, usually within 10 working days. For special pre-sale items, the expected arrival date will be noted in the product description.

✈️ Express Shipping: Need your order urgently? Please contact us via email or live chat, and we’ll help arrange express delivery for you.

The D1 Mini NodeMCU is a small development board based on the powerful ESP8266-12F WLAN module, equipped with a Micro-USB/USB TYPE-C interface and CH340G driver for easy connection and programming. Due to its compact size, this NodeMCU is particularly popular among developers. It features built-in Wi-Fi functionality and supports Arduino IDE programming, enabling developers to rapidly prototype smart devices. Equipped with up to 11 GPIO pins and support for I2C, SPI, and UART communication, the D1 Mini is ideal for applications such as IoT projects, smart home and remote monitoring, greatly expanding its application scenarios.

The D1 Mini is a compact NodeMCU WiFi board powered by the ESP-8266-12F chip, featuring a convenient micro USB connection.

  • Versatile Pin Configuration: Equipped with 9 digital input/output pins, all supporting interrupt, PWM, I2C, and 1-Wire protocols, along with a micro USB connector for seamless integration.

  • Compact and Portable: Its ultra-compact design makes the D1 Mini ideal for use in decentralized or space-constrained applications.

  • User-Friendly Development: Compatible with the Arduino IDE, this wireless development board is easy to program and comes with a comprehensive e-book to simplify your projects.


Programming

The D1 mini has a micro USB for auto programming.
Also you can programming it using OTA.

 

Warnings

All IO is working at 3.3V.

 

Special Features

  • Built-in CH340 Chip: Ensures easy and convenient programming.

  • Compact and Lightweight Design: This development board is ideal for a wide range of applications and projects, thanks to its portability and efficient design.

  • Versatile Functionality: Perfect for use with various sensors to measure air pressure, temperature, and humidity, all accessible via its own web server through a WLAN connection.



Technical specifications

Operating voltage 3.3V DC
Chip ESP8266-12F
Clock frequency 80 MHz / 160MHz
Flash 4MB
Digital I/O pins 9
Analog input PIN 1
Port Micro usb
USB chip CH340 chip
Dimensions 25 x 35 x 6mm

 

Installing Hardware package

There are two ways to install hardware package, Boards Manager and git.
 

Installing with Boards Manager

Starting with 1.6.4, Arduino allows installation of third-party platform packages using Boards Manager. We have packages available for Windows, Mac OS, and Linux (32 and 64-bit).
  

 

Featured Articles

Arduino IDE Setup

How to Install a Hardware package for ESP8266?

How to Flash an Arduino Board: Complete Beginner's Guide

  

PIN

Pin

Function

ESP-8266 Pin

TX

TXD

TXD

RX

RXD

RXD

A0

Analog input, max 3.3V input

A0

D0

IO

GPIO16

D1

IO, SCL

GPIO5

D2

IO, SDA

GPIO4

D3

IO, 10k Pull-up

GPIO0

D4

IO, 10k Pull-up, BUILTIN_LED

GPIO2

D5

IO, SCK

GPIO14

D6

IO, MISO

GPIO12

D7

IO, MOSI

GPIO13

D8

IO, 10k Pull-down, SS

GPIO15

G

Ground

GND

5V

5V

-

3V3

3.3V

3.3V

RST

Reset

RST

note: All IO have interrupt/pwm/I2C/one-wire supported(except D0)

- Pre-Ordering: If an item is unavailable, you can pre-order it. We'll dispatch once stock is replenished, usually within 10 working days. Special pre-sale products will specify the expected arrival time in the description.

- Express Shipping: Need it faster? Contact us via email or through our live chat support, and we'll arrange expedited delivery for you.

1. General Shipping Information

  • We provide premium shipping methods with a tracking number for each order.
  • Shipping address should be input in English without any special symbols to help the courier company recognize your address in the system. We will ship according to the shipping address you provided. Please notify us of any address change before your order is marked "Shipped" to avoid parcel loss.
  • Please contact our customer service staff immediately if you need to cancel or change an order. Once your order has reached "Shipped" status, it can no longer be canceled or changed in any way. To avoid complications, please recheck your shopping cart before checkout.
  • We can ship all in-stock orders within 1 business day as your order has been confirmed.
  • All items are inspected before dispatch and are carefully hand-packed.
  • With standard courier practice, you need to check the contents of the parcel before signing for your goods. Otherwise, we will not be held responsible for any damage that may have occurred in transit.

🚀 Need Faster Shipping?

If you require expedited shipping (Express), please contact our customer support team at info@openelab.io for a customized quote tailored to your location.

2. Shipping Rates & Options

Our shipping rates are calculated based on the order value and destination. Please refer to the tables below for details.

2.1 Germany (Domestic)

Shipping Method Order Value Cost Est. Delivery
Deutsche Post €0 - €50.00 €4.95 2-4 Business Days
Deutsche Post Over €50.00 Free 2-4 Business Days
DHL Paket
(Faster Delivery)
€0 - €50.00 €6.95 1-3 Business Days
DHL Paket
(Faster Delivery)
€50.00 - €100.00 €2.00 1-3 Business Days
DHL Paket
(Faster Delivery)
Over €100.00 Free 1-3 Business Days

 

2.2 European Union (EU)*

*Including: Austria, Andorra, Åland Islands, etc.

Shipping Method Order Value Cost Est. Delivery
Deutsche Post €0 - €100.00 €7.95 5-9 Business Days
Deutsche Post Over €100.00 Free 5-9 Business Days
DHL Paket
(Faster Delivery)
€0 - €100.00 €15.95 3-7 Business Days
DHL Paket
(Faster Delivery)
€100.00 - €250.00 €7.95 3-7 Business Days
DHL Paket
(Faster Delivery)
Over €250.00 Free 3-7 Business Days

 

2.3 United States

Region Shipping Method Order Value Cost Est. Delivery
Continental U.S.
(50 States)
USPS Ground Advantage €0 - €45.00 €4.95 3-7 Business Days
USPS Ground Advantage Over €45.00 Free 3-7 Business Days
USPS Priority Mail €0 - €45.00 €16.95 1-4 Business Days
USPS Priority Mail Over €45.00 €14.95 1-4 Business Days
Non-Continental U.S.
(AK, HI, PR, etc.)
USPS Ground Advantage €0 - €60.00 €6.95 5-9 Business Days
USPS Ground Advantage Over €60.00 Free 5-9 Business Days

  • The regions in the Non-Continental U.S. include: AlaskaAmerican SamoaGuamHawaii, the Marshall Islands, the Northern Mariana IslandsPalauPuerto Rico, the U.S. Virgin Islands, the Armed Forces of America, the Armed Forces in Europe, the Armed Forces in the Pacific, and the U.S. outlying islands. The shipping and delivery to these areas are subject to the Non-Continental U.S. shipping rules.

2.4 International (Outside EU)

For specific international destinations, including Switzerland, United Kingdom, Ireland, and Norway.

Order Amount Shipping Cost
€0 - €100.00 €15.95
€100.00 - €250.00 €7.95
Over €250.00 Free

Important Notice:

  • Please verify the inventory location on the product page before placing your order to confirm delivery timeframes. 
  • For products in the Shenzhen warehouse, we will typically first ship the products from the Shenzhen warehouse to our Munich warehouse or Long Beach warehouse, which will take around 1.5 weeks. After we receive the shipment in Munich/ Long Beach, we will send the items to you. We will only arrange YunExpress shipping from Shenzhen for orders with products in the Shenzhen warehouse worth more than €50.
  • If you place an order with products from both Munich and Shenzhen warehouses, we will first ship the products in the Munich warehouse, and then send the remaining products to you when we receive them from Shenzhen.

 

3. International Warehouse

Our products are stored in both our Munich and Shenzhen warehouses to provide more flexible logistics solutions tailored to different regions and customer needs. On each product's description page, we indicate the specific warehouse location to help you better plan your purchase and delivery schedule.

3.1 German Warehouse

For products stored in our warehouse in Munich, we use either Deutsche Post or DHL for shipping, depending on the size of the package. Logistics within Germany are very efficient, with an estimated delivery time of 2-4 business days, ensuring you receive your order quickly and conveniently. For Western EU countries, the estimated delivery time is 4-6 business days. For Eastern EU countries, the estimated delivery time is 6-8 business days.

3.2 US Warehouse

For products stored in our warehouse in Long Beach, we use either USPS or UPS for shipping, depending on the size of the package. Logistics within U.S. are very efficient, with an estimated delivery time of 3-7 business days, ensuring you receive your order quickly and conveniently.     

3.3 Chinese Warehouse

We will only arrange YunExpress shipping from Shenzhen for orders with products in the Shenzhen warehouse worth more than €50. Orders directly shipped from our Shenzhen warehouse are handled by YunExpress. Given the complexities of international shipping, the estimated delivery time for these packages is around 10 business days, though this may vary slightly due to customs processes or other uncontrollable factors. Otherwise, the products will first be shipped from China to our Munich warehouse and then shipped to the final destination. 

4. Customs and Taxes

4.1 How are customs handled by OpenELAB for import or export?

For EU Member States: Whether shipped from Germany or China, we cover all import duties and taxes, ensuring that you receive your package without any additional costs or hassle with customs.

Important Exception for Non-EU Countries (e.g., Switzerland, Norway):
For countries outside of the European Union, such as Switzerland and Norway, you may be subject to import duties, taxes, and/or customs fees charged upon delivery. These fees vary from country to country and are the sole responsibility of the recipient.

⚠️ Refusal of Delivery: If you refuse to pay these fees upon delivery and the package is returned to us, the refund amount will be calculated after deducting the original shipping costs, return shipping costs, and any applicable customs or storage fees.

4.2 How is VAT charged when the Customer places an order from OpenELAB?

In accordance with the newest VAT e-commerce rules in the EU, OpenELAB shall have the right to charge the amount of VAT. The standard rate of actual VAT applied is subject t

Effective Date: December 10, 2025

At OpenELAB, we are committed to providing accurate product descriptions and high-quality electronics. The following policy outlines your rights and obligations, designed to be fair to both our customers and our business operations globally.

1. Warranty Policy

A. Standard Limited Warranty (Global & US)

For customers in the United States, Asia, and other non-EU regions:

  • Warranty Period: OpenELAB provides a 12-month warranty from the date of delivery.

  • Coverage: This warranty covers defects in material and workmanship under normal use.

  • Resolution: We will repair or replace defective units at no charge.

B. Statutory Rights for EU/UK Customers (EU Compliance)

If you are a consumer residing in the European Union or the UK purchasing from our global site:

  • Statutory Guarantee: You are entitled to a 24-month statutory guarantee for conformity defects present at the time of delivery, in accordance with EU consumer protection laws.

  • Relation: The Standard Limited Warranty (Section 1.A) applies in addition to, and does not replace, your statutory rights.

C. Warranty Exclusions (Applies to ALL Regions)

Warranty coverage is VOID if the damage is caused by:

  1. Misuse: Incorrect installation, reverse polarity, or exceeding voltage limits.

  2. Unauthorized Modification: This explicitly includes soldering, cutting pins, modifying the PCB, or flashing unauthorized/beta firmware that "bricks" the device.

  3. Physical Damage: Drops, moisture/water damage, or electrical surges (lightning).

  4. Normal Wear & Tear: Consumable parts (e.g., batteries), unless defective upon arrival.

Note: For non-warranty repairs (e.g., customer-induced damage), we may offer repair services for a fee. Shipping and diagnostic costs will be borne by the customer.

2. Return & Refund Policy

A. Return Window

  • Standard: You may request a return within 30 days of receiving your order.

  • EU Customers: You have the statutory right to withdraw from the contract within 14 days of receipt without giving a reason.

B. Refund Conditions & Restocking Fees

To protect against policy abuse, the refund amount is strictly determined by the condition of the returned item.

1. Full Refund (100%)

  • The item is Brand New, Unopened, and Unused.

  • The original packaging is intact and sealed.

  • All accessories are present.

2. Partial Refund (Restocking Fee / Value Depreciation)
If the item is returned in a condition that prevents it from being sold as new, OpenELAB reserves the right to deduct a Restocking Fee (or "Compensation for Loss of Value" for EU customers) from the refund.
Deductions apply if:

  • Signs of Use: Visible scratches, mounting marks on screw holes, or fingerprints.

  • Damaged Packaging: Original box is torn, written on, or missing.

  • Technical Modification: The device has been powered on, programmed/flashed, or soldered.

  • Broken Seals: Anti-static bags or security seals have been opened.

Depending on the severity of the usage/damage, the deduction may range from 15% to 50% of the product price. Items damaged beyond repair due to misuse will not be refunded.

C. Shipping Costs

  • Defective / Wrong Item: OpenELAB covers the return shipping cost.

  • Customer Remorse (Changed Mind / Ordered Wrong Item): The customer is responsible for all return shipping costs to our designated return center (located in the US, Germany, or China, depending on your region). Original shipping fees are non-refundable unless required by local law.

3. Return Process (RMA)

To ensure a smooth return process, please follow these steps:

  1. Authorization: Contact us at info@openelab.io before returning any item. Returns without prior authorization will not be accepted.

  2. RMA Number: We will provide you with a Return Merchandise Authorization (RMA) number and the correct return address.

  3. Packing: Ship the item back in its original packaging with the RMA number clearly marked on the shipping label (not on the product box).

  4. Tracking: We strongly recommend using a trackable shipping method. OpenELAB is not responsible for returns lost in transit.