ESP-01 ESP8266 Wifi Module (Replaced by ESP-01S), 1MB

(23 customer reviews)


Out of stock

SKU: NWI1021 Category: Tags: ,


A new updated version ESP-01S available here, small updates. 

This is a wifi solution based on IC ESP8266 from Espressif, very price competitive wifi module, and also great function. Bring your project to the internet of things easily!



  • 1MB (8Mbit) Flash size.
  • Very competitive price
  • AP, STA, AP+STA modes available.
  • Very simple AT commands, easy to use.
  • Internal LWIP interface.
  • Only four pins interface, VCC-3V3, GND, TXD and RXD.
  • Latest firmware. New IC ESP8266ex

Additional information

Weight 0.01 kg

23 reviews for ESP-01 ESP8266 Wifi Module (Replaced by ESP-01S), 1MB

  1. nitroxide (verified owner)

    Absolute cheapest WiFi module!

  2. Charles (verified owner)

    After playing with this for a while, I’ve found it to be quite competent, able to connect to WPA2 networks effortlessly. Very quick link time, too.

    The AT command set is awkward to automate, but not impossible. It’s also very difficult to communicate at high speed bi-directionally without stomping on your data… But if you’re looking for a few packets here and there, this is great!

    I can’t believe it actually works… And it works surprisingly well. Nothing like this exists to my knowledge. Small, cheap, great!

  3. mschroeer (verified owner)

    Great item for a decent price. Complete wifi functionality – can connect to infrastructure, run as access point, both simultaneously.
    Easy to configure and connect to uC using AT commands.
    Really like it.

  4. Philip (verified owner)

    Just perfect! I got the new version and it’s working fine (limited functionality but more to come).
    Fast shipping with prepaid vat, to EU was a +++

  5. arden

    I want to setup a static ip address(I do not have a dhcp server in my network), I can’t find one AT command to set the IP address of client in Station mode(1).

  6. defconhaya (verified owner)

    Great device !
    It’s extremely tiny !
    I was amazed by the fast shipping: from China to Europe only 9 days !

  7. overdrive (verified owner)

    Cool little wifi module. Make sure you read all the material available on the use of this device to save you frustration. Very useful once you get it working. For the price you cant go wrong.

  8. BT (verified owner)

    Can anyone share the wiring for the pins, especially the middle four pins?
    Different websites provide different instructions.

  9. cem2ran (verified owner)

    Great product and shipping time was far quicker than usual(china)!

  10. dan.allain

    Excelling wifi module with built-in microcontroller. Wireless projects with just 1 very small board.

  11. Kenneth (verified owner)

    Very nice working very well

  12. Bart (verified owner)

    Some extra info on this versatile device can be found on and One can also replace the firmware by a FreeRTOS or NodeMcu (Lua) port. Note that only a few pins are available, so you may want to consider ordering one of the other packages (e.g. SMD) instead.

  13. albantor30 (verified owner)

    Great little piece of hardware! Although the support is still experimental and spread all over the internet, this WiFi module is easy to get working, and adds wireless internet connectivity to your project for a ridiculous low price!
    The best way to get it work and familiarize with this chip is to control it directly from a serial terminal using a USB-UART module.
    Also, don’t forget to flash the latest firmware on the chip.

  14. kremen (verified owner)

    nice unit… cant believe the price of wifi connectivity these days.. so cheap.. had no problems flashing with new firmware a treat..
    electrodragon rock.. fast delivery and great service form chao.. havn’t had a problem in the 3 years ive been using them.

  15. maguye007 (verified owner)

    Very nice module. Got two of these and loaded the NodeMCU Lua firmware on them, and wow, they really are worth all the buzz around them. Ensure you use a proper UART device (eg FTDI FT232 or similar) with proper level-shifting if required. Other than that, solid modules!

  16. pedram

    i have 2 eps-01
    one work true
    other worked at first but now not work in client mode
    it display: DNS Fail. but micro controller is same
    first work true and secound not work
    how can set DNS

  17. (verified owner)

    Works perfectly with NodeMCU. A must to have.

  18. ghaneipour pedram

    it is a good solution
    i need know that how i can use in iot.
    is need micro controller . or can use without micro

  19. Chao (store manager)

    Hello ghaneipour pedram,

    Please see the description on this product, they are the same,

    this board has MCU inside, can run in both way.

  20. remidechazellesdiy

    Perfect. Works exactly as expected !

  21. koursaros (verified owner)

    good but there are better modules here in electrodragon

  22. thiagoas (verified owner)

    Nice and cheap MCU.

  23. diazfjg (verified owner)

    Esp8266 is the best module for IOT. I LIKE IT!!!

Add a review

Your email address will not be published. Required fields are marked *

This site uses Akismet to reduce spam. Learn how your comment data is processed.

Product Enquiry