• If you are developing new product, better use WROOM-02, better performance, same price, 2MB, 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
ESP-12F Common ESP8266 module version
ESP-12S  Optimized from esp-12f, better antenna singal
ESP-07S  Pin compatible with esp-12, IPEX connector to get greater signal
ESP-01S  General DIP PTH version, less pin lead out, easy to use
ESP-01M  Vertical stand on your PCBsave space and better signal
WROOM-02 Most certificated, best design by original Espressif.
  • $2.2 for more than 200-1000pcs, $2 for 1K+pcs, price will automatically update in cart page. Other price break please contact us.

For documentation please still refer to ESP-12F.

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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