If you are developing new product, better use WROOM-02, better performance, same price, 4MB, and most certificated for most countries.

  • Based on ESP8266 wifi IC
  • Fully compatible with forepast versions ESP-12E, or ESP12F
  • FCC&CE&RoHS all passed
  • Further improved antenna design, better signal performance
  • Package – All unit packaing is in tape reel, 800pcs per reel.
ESP8266 Module Series please see on this page. 

For documentation please check here.

$2.2 for more than 200-1000pcs, $2 for 1K+pcs, price will automatically update in cart page. Other price break please contact.

Additional information

Weight 0.01 kg

4 reviews for ESP-12S Wifi Module, ESP8266, 4MB

  1. 5 out of 5

    Gloria (verified owner)

    New version, like 12F with better antenna

  2. 5 out of 5

    porkyneal (verified owner)

    Great little modules, can’t get enough of them.
    New version, same as the 12E / 12F but with a new and improved antenna design.
    Missing the bottom row of pads, however, these were not that useful (connected internally to flash I believe).

  3. 5 out of 5

    marc06 (verified owner)

    Really good and small wifi card. And also a great number of IO for cheap price. Bravo!!!

  4. 4 out of 5

    gagliarduk (verified owner)

    Module with 4MB flash chip. Good!

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