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WiFi ESP Click - MikroElektronika ESP-WROOM-02 Module ESP8266EX

  • $19.50AUD
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  • WiFi ESP Click - MikroElektronika ESP-WROOM-02 Module ESP8266EX

    WiFi ESP click carries the ESP-WROOM-02 module that integrates ESP8266EX. The click is designed to run on a 3.3V power supply. It communicates with the target microcontroller over UART interface and the following pins on the mikroBUS™ line: RST, CS.

    Access point and WiFi client mode

    WiFi ESP click can function in both AP (Access Point) WiFi mode, as well as in WiFi client mode. The click brings easy implementation and usage.

    The module supports the following network protocols: IPv4/TCP/UDP/HTTP/FTP. Thanks to this the click can operate as a client device requesting a file from a file server device (FTP - file transfer protocol) in local network systems, or request a web page via internet (IP/TCP/HTTP). It can also be used as a small web server, for example a wireless weather station prototype, etc. 

    Station mode is default when the click is in WiFi client mode.

    ESP-WROOM-02 module features

    ESP-WROOM-02 carries ESP8266EX highly integrated Wi-Fi SoC solution to meet the continuous demands for efficient power usage, compact design and reliable performance in the industry.

    Besides the Wi-Fi functionalities, ESP8266EX integrates an enhanced version of Tensilica’s L106 Diamond series 32-bit processor and on-chip SRAM. As well as antenna switches, RF balun, power amplifier, low noise receiver amplifier, filters and power management modules.

    With the complete and self-contained Wi-Fi networking capabilities, it can perform as either a standalone application (WROOM module itself) or the slave to an MCU host which is the primary intention of the click board as a whole. So, this click board is applied to any microcontroller design as a Wi-Fi adaptor through UART interface (RX,TX lines on mikroBUS pin socket).

    For more information see the datasheet.

    Advanced usage

    There are additional pad headers onboard (HSPI/GPIO interface of the module) for advanced usage.

    For more information see the Documentation tab.

    Specifications

    Type Wi-Fi
    Applications Create smart appliances, home automation systems, wireless data loggers, etc
    MCU ESP-WROOM-02
    Key Features Protocols: IPv4, TCP/UDP/HTTP/FTP, 802.11 b/g/n standard, UART interface, 3.3V power supply
    Key Benefits The click can function in both AP mode and WiFi client mode
    Interface GPIO,UART
    Input Voltage 3.3V
    Compatibility mikroBUS
    Click board size M (42.9 x 25.4 mm)

    Pinout diagram

    This table shows how the pinout on WiFi ESP click corresponds to the pinout on the mikroBUS™ socket (the latter shown in the two middle columns).

    Notes Pin Mikrobus logo.png Pin Notes
    NC 1 AN PWM 16 NC
    HW Reset RST 2 RST INT 15 NC
    Chip enable (active high) EN 3 CS TX 14 TX UART0_TXD / Transmit end in UART download (program) mode
    NC 4 SCK RX 13 RX UART0_RXD / Receive end in UART download (program) mode
    NC 5 MISO SCL 12 NC
    NC 6 MOSI SDA 11 NC
    Power supply +3.3V 7 3.3V 5V 10 NC
    Ground GND 8 GND GND 9 GND Ground

    Additional pins

    Name I/O Description
    CLK IO HSPI_CLK / GPIO14
    SDO IO HSPI_MISO / GPIO12
    SDI IO HSPI_MOSI / GPIO13
    CS IO HSPI_CS / GPIO15
    IO0 IO GPIO0 (UART download mode - pull down, Flash boot - pull up)
    GND GND

    Buttons and LEDs

    Designator Name Type (LED, BUTTON…) Description
    LD1 PWR LED Power Supply ON

    Programming

    Code examples for WiFi ESP click, written for MikroElektronika hardware and compilers are available on Libstock.

    Downloads


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