---
product_id: 84114312
title: "4Pcs ESP8266 Serial WiFi Module ESP-01 Updated Wireless Transceiver Board 3.3V for Arduino"
brand: "deegoo-fpv"
price: "€ 23.02"
currency: EUR
in_stock: true
reviews_count: 9
url: https://www.desertcart.com.cy/products/84114312-4pcs-esp8266-serial-wifi-module-esp-01-updated-wireless-transceiver
store_origin: CY
region: Cyprus
---

# 1 MB RAM Wi-Fi 802.11b 3.3V only 4Pcs ESP8266 Serial WiFi Module ESP-01 Updated Wireless Transceiver Board 3.3V for Arduino

**Brand:** deegoo-fpv
**Price:** € 23.02
**Availability:** ✅ In Stock

## Summary

> 🚀 Elevate Your Projects with Wi-Fi Magic!

## Quick Answers

- **What is this?** 4Pcs ESP8266 Serial WiFi Module ESP-01 Updated Wireless Transceiver Board 3.3V for Arduino by deegoo-fpv
- **How much does it cost?** € 23.02 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.cy](https://www.desertcart.com.cy/products/84114312-4pcs-esp8266-serial-wifi-module-esp-01-updated-wireless-transceiver)

## Best For

- deegoo-fpv enthusiasts

## Why This Product

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

## Key Features

- • **Compact Powerhouse:** Self-contained Wi-Fi networking solution.
- • **Stay Connected Anywhere:** Supports AP, STA, and AP + STA modes.
- • **Unleash Your Creativity:** Compatible with Arduino for endless projects.
- • **Future-Proof Your Projects:** Ideal for IoT applications and smart devices.
- • **Stronger Signal, Better Performance:** Updated ESP-01 for enhanced connectivity.

## Overview

The 4Pcs ESP8266 Serial Wifi Module ESP-01 is a cutting-edge wireless transceiver board designed for Arduino enthusiasts. Operating at 3.3V, this updated module supports multiple connectivity modes and boasts a robust 802.11b wireless compatibility, making it the perfect choice for innovative IoT applications.

## Description

4Pcs ESP8266 Serial WiFi Module ESP-01 Updated Wireless Transceiver Board 3.3V for Arduino

## Features

- Note: The item only supports 3.3V, please don't use 5V!
- Model: Esp-01.Compatible with Arduino. Support 3 modes: AP, STA, AP + STA
- ESP8266 is a WiFi enabled Microcontroller – Arduino ready
- Updated version ESP-01,with stronger signal
- Complete and self-contained Wi-Fi networking solution

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Wireless Type | 802.11b |
| Brand | Deegoo-FPV |
| Series | ESP-01 |
| Item model number | 8541549612 |
| Item Weight | 3.2 ounces |
| Package Dimensions | 6 x 4 x 0.2 inches |
| Number of Processors | 1 |
| Voltage | 3.3 Volts |
| Manufacturer | Deegoo-FPV |
| ASIN | B07H1W6DJZ |
| Is Discontinued By Manufacturer | No |
| Date First Available | September 2, 2018 |

## Images

![4Pcs ESP8266 Serial WiFi Module ESP-01 Updated Wireless Transceiver Board 3.3V for Arduino - Image 1](https://m.media-amazon.com/images/I/713jtjcCbML.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    Easy WiFi over serial
  

*by L***A on Reviewed in the United States on August 9, 2019*

These things work really well, especially considering their size. They use serial to connect to your Arduino or whatever, and use an extended AT command set to configure it, connect to WiFi and send/receive data. They also support AP mode so would be ideal for configuring your WiFi settings by first connecting your laptop/phone/etc to your project's own WiFi connection.If you're using this with the Arduino IDE there's a great library available on GitHub - search for ITEADLIB_Arduino_WeeESP8266It's not breadboard friendly, but that's easily solved if you buy the adaptor, make one, or use Dupont wires.

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    Excellent price
  

*by T***N on Reviewed in the United States on April 23, 2020*

If you know what your doing with these, they are fun. Every single one I got from this packaged has worked perfectly

### ⭐⭐⭐⭐ 4.0 out of 5 stars







  
  
    You could spend hours trying to make it work.
  

*by M***R on Reviewed in the United States on May 26, 2020*

The internet is littered with issues people have had with these modules. In my case I finally figured out that after grounding GPIO0  during a board reset (to get into software download mode) and leaving the module alone for 15 seconds or so, it was possible to upload code without the "timed out waiting for packet header" error message.  The "Blink" code that supports these erroneously says the inbuilt LED (identified as "LED_BUILTIN") is on pin 2.  It's actually on pin 1, so you have modify the code to run the test program. Finally, the upload would not work at default 115,200 baud rate, but would upload at 74,880 baud, which you can set in AT mode. To make the code run, you then have to reset this module, which none of the advice I read tells you. It's a great little module, but if you are unlucky you may spend days figuring how to make it work.

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**Shop now:** [https://www.desertcart.com.cy/products/84114312-4pcs-esp8266-serial-wifi-module-esp-01-updated-wireless-transceiver](https://www.desertcart.com.cy/products/84114312-4pcs-esp8266-serial-wifi-module-esp-01-updated-wireless-transceiver)

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*Product available on Desertcart Cyprus*
*Store origin: CY*
*Last updated: 2026-03-26*