WiFi module ESP-01 ESP8266 Black - 3 GPIO, 1MB, PCB antenna*

Wi-fi module based on the ESP8266 chip. Works in standard wi-fi 802.11 b/g/n at 2.4 GHz. Has 8 leads - pitch of 2.54 mm, of which 3 are GPIO. Has a 1 MB Flash memory, built-in LED and a PCB antenna. Tile sizes 24,8 x 16 mm.

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Price 15,90 zł


Wi-fi module based on the ESP8266 chip. Works in standard wi-fi 802.11 b/g/n at 2.4 GHz. Has 8 leads - pitch of 2.54 mm, of which 3 are GPIO. Has a built-in Flash memory of 1 MB, a LED light and a PCB antenna. Tile sizes 24,8 x 16 mm.




Black version the ESP-01 has more Flash memory (1MB) than the blue version (512 KB).


Features of the module ESP-01 Black

Below are the features that distinguish the module ESP-01 in the background of the whole family ESP-XX.

  • Flash memory: 1 MB
  • Has 8 leads:
    • 3 x GPIO - digital outputs/inputs
    • 2 x UART (TX, RX) for communicating, for example with Arduino
  • Mounting: THT:
    • Terminal pitch: 2.54 mm
  • Equipped with built-in PCB antenna
  • Dimensions: 24,8 x 16 mm



The module has 8 pins output on the two-row (2x4) goldpin strip raster 2.54 mm.


VccPower supply 3.3 V, current consumption up to 300 mA.
GNDThe mass of the system.
TxThe transmitter of the serial interface UART.
RxThe receiver of the serial interface UART.
RSTReset system - activated by low state. In a mode of regular operation, specify high state 3.3 V.

Power down - indicating low state causes a transition to sleep mode.

For software updates and communication via the UART, you must specify the high state 3.3 V.


Lead GPIO number 0.

To update software, you must indicate the low status (connect to GND).

GPIO2Lead GPIO number 2.



The product is compatible with Arduino

Instruction of connecting the module with Arduino you can find on the blog majsterkowo, in the service and in a guide prepared by us.


Tile tolerates a voltage of 3.3 V. Therefore, you must choose Arduino operating in voltage of 3.3 V or use a converter.



  • Supply voltage: 3.3 V
  • Working voltage of leads: 3.3 V
  • Current consumption up to 300 mA
  • Supports standard wi-fi - wi-fi 802.11 b, g, n
  • Operates in the 2.4 GHz frequency
  • Supports WPA / WPA2 protection
  • Can work in AP mode (Access Point), STA (standalone) and AP+STA
  • Transmitter power: 19,5 dBm
  • Supports AT commands
  • Has a built-in Flash memory: 1 MB
  • Communication via the serial UART interface
  • Has a built-in PCB antenna
  • Equipped with communication interfaces: SPI, UART, SDIO
  • Has 8 leads pitch 2 mm
    • 3 x GPIO - digital outputs/inputs


  • UC - Microkontroler ESP-8266
  • Test: 3


Posting the payment for the order on our account on a business day up to 13:00 means sending the goods on the same day!


The time of payment depends on the hours of ELIXIR session of the sender's bank and the recipient of the transfer (more information on this subject, for example on the website


The table presents available forms of delivery in Poland


Carrier and

Bank wire

by cash


Poczta Polska

terms of service

9,90 PLN17,90 PLN1-3 days

Kurier GLS

terms of service

14,90 PLN22,90 PLN

1-2 days

Paczkomaty 24/7 

terms of service

12,90 PLN-1-3 days

If the amount to pay for products exceeds 500 PLN
Delivery is for free!


  • Free delivery of orders over 500 PLN does not apply to parcels addressed outside of Poland.
  • Free delivery does not apply when changing orders.
  • The delivery period is counted in working days from the date of dispatch of the order.