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Wi-Fi Module, SPWF04SA 2.4 GHz IEEE 802.11 b/g/n Transceiver, Integrated Antenna


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SPWF04SA   Datasheet
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Product Range Selector (SPWF04)

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Product Overview

The SPWF04SA from STMicroelectronics is a WiFi module with integrated antenna. This is a ready-to-use Wi-Fi module conceived for Internet of Things (IoT) applications. The module integrates a Cortex-M4-based STM32 microcontroller and a powerful Wi-Fi transceiver, compliant with IEEE 802.11 b/g/n standard for the 2.4GHz band. The module is cloud compatible thanks to the complete protocol package, which includes application and security layers. It can operate in serial-to-Wi-Fi and standalone mode with customer applications developed in the subsystem based on the MicroPython environment. The SPWF04SA module is configured with a highly-efficient, embedded micro 2.4GHz ISM band antenna and certified FCC/IC and CE. The module supports WPA2-personal and WPA2-enterprise security and WPS (Wi-Fi protected setup).
  • 2.4GHz IEEE 802.11 b/g/n transceiver, integrated TCP/IP protocol stack
  • High performance STM32F439-ARM Cortex -M4, 256KB SRAM, 2MB embedded high speed flash memory
  • Open, WEP, WPA2 PSK, WPA2 enterprise, miniAP easily provisioned (SSID, PWD) & WPS for station
  • Station, IBSS and miniAP system modes (supporting up to 5 stations)
  • Fast Wi-Fi re-association after reset & secure firmware and FileSystem updates Over The Air (OTA)
  • AT command set interface through UART, single voltage supply (3.3V typical)
  • UART and SPI interface to host system, 19 configurable GPIOs, SPI interface with simple protocol
  • 18.3dBm at 1Mbps DSSS, 13.7dBm at 54Mbps OFDM TX power
  • RX sensitivity -96.0dBm at 1Mbps DSSS, -74.5dBm at 54Mbps OFDM
  • Small form factor of 26.92mm x 15.24mm x 2.35mm


Wireless, Communications & Networking

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Technical Docs (2)

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CAD Models and drawings are provided to you on a revocable limited licence for your internal use only but remain the property of the manufacturer who retain all intellectual property rights and ownership. They are provided to assist you in decision making and as design guide but are not guaranteed to be error free, accurate or up to date and is not intended to be taken as advice.
Use of these CAD models and other options provided are downloaded and used entirely at your own risk and by continuing you confirm acceptance of the above.

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