---
product_id: 336872596
title: "ESP8266 ESP-12F Mini WLAN WiFi Development Board 4M Bytes for Arduino for NodeMcu for WeMos (5PCS)"
brand: "keeyees"
price: "€ 28.77"
currency: EUR
in_stock: true
category: "Kee Yees"
url: https://www.desertcart.pt/products/336872596-esp8266-esp-12f-mini-wlan-wifi-development-board-4m-bytes
store_origin: PT
region: Portugal
---

# 4M Bytes Flash Memory Micro USB Connectivity 11 Digital I/O Pins ESP8266 ESP-12F Mini WLAN WiFi Development Board 4M Bytes for Arduino for NodeMcu for WeMos (5PCS)

**Brand:** keeyees
**Price:** € 28.77
**Availability:** ✅ In Stock

## Summary

> 🚀 Unlock your IoT potential with the ultimate mini WiFi dev board!

## Quick Answers

- **What is this?** ESP8266 ESP-12F Mini WLAN WiFi Development Board 4M Bytes for Arduino for NodeMcu for WeMos (5PCS) by keeyees
- **How much does it cost?** € 28.77 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.pt](https://www.desertcart.pt/products/336872596-esp8266-esp-12f-mini-wlan-wifi-development-board-4m-bytes)

## Best For

- keeyees enthusiasts

## Why This Product

- Trusted keeyees brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Pro-Level Support:** Comes with a detailed PDF tutorial to get you coding like a pro from day one.
- • **Compact Yet Mighty:** Mini form factor with 4MB flash memory to handle complex applications effortlessly.
- • **Plug & Play Compatibility:** 100% Arduino, NodeMcu, and WeMos ready—no hassle, just code.
- • **Seamless WiFi Integration:** Built-in ESP8266 chip with 802.11b WiFi for instant wireless projects.
- • **Powerful Multi-Function Pins:** 11 digital I/O pins supporting interrupt, PWM, I2C, and 1-wire protocols.

## Overview

The KeeYees ESP8266 ESP-12F Mini WLAN WiFi Development Board is a compact, high-performance module featuring 4MB flash memory, 11 versatile digital I/O pins, and micro USB connectivity. Fully compatible with Arduino, NodeMcu, and WeMos platforms, it empowers developers to build wireless IoT projects with ease. This 5-pack bundle includes comprehensive PDF tutorials, making it perfect for professionals and hobbyists aiming to innovate in smart device development.

## Description

desertcart.com: KeeYees ESP8266 ESP-12F Mini WLAN WiFi Development Board 4M Bytes for Arduino for NodeMcu for WeMos (5PCS) : Electronics

## Features

- Mini Development Board based on ESP8266 chip.
- This board contains 11 digital input / output pins, all pins have interrupt / pwm / I2C / 1-wire and a micro USB connection.
- This board is 100% compatible with for Arduino and for WeMos.
- WIFI development board, with 4 MB of flash memory.
- Technical Support: Our PDF tutorial is available on this page. Please pull down this page to find the tutorial: User Guide (PDF)

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B08ZY7Q7TW |
| Best Sellers Rank | #4,402 in Single Board Computers (Computers & Accessories) |
| Brand | KeeYees |
| Built-In Media | 5 x Development Board |
| Compatible Devices | Arduino, NodeMcu, WeMos |
| Connectivity Technology | Wi-Fi |
| Customer Reviews | 4.4 4.4 out of 5 stars (143) |
| Manufacturer | KeeYees |
| Memory Storage Capacity | 4 MB |
| Mfr Part Number | KY29-US |
| Model Name | ESP8266 ESP-12F |
| Number of Items | 5 |
| Number of Packs | 5 |
| Operating System | Espressif RTOS |
| Processor Brand | Espressif |
| Processor Count | 2 |
| RAM Memory Installed | 4 MB |
| RAM Memory Technology | LPDDR2 |
| Total Usb Ports | 1 |
| Unit Count | 5 Count |
| Wireless Compability | 802.11b |

## Product Details

- **Brand:** KeeYees
- **Connectivity Technology:** Wi-Fi
- **Memory Storage Capacity:** 4 MB
- **Model Name:** ESP8266 ESP-12F
- **Ram Memory Installed Size:** 4 MB

## Images

![ESP8266 ESP-12F Mini WLAN WiFi Development Board 4M Bytes for Arduino for NodeMcu for WeMos (5PCS) - Image 1](https://m.media-amazon.com/images/I/81yX55Yd+EL.jpg)

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**Shop now:** [https://www.desertcart.pt/products/336872596-esp8266-esp-12f-mini-wlan-wifi-development-board-4m-bytes](https://www.desertcart.pt/products/336872596-esp8266-esp-12f-mini-wlan-wifi-development-board-4m-bytes)

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*Product available on Desertcart Portugal*
*Store origin: PT*
*Last updated: 2026-09-22*