New Product Introduction

STMicroelectronics SPWF04Sx WiFi module

The modules integrate a Cortex-M4-based STM32 microcontroller and a powerful Wi-Fi transceiver, compliant with IEEE 802.11 b/g/n standard for the 2.4 GHz band.

STMicroelectronics	SPWF04Sx product image

The SPWF04SA and the SPWF04SC are ready-to-use Wi-Fi modules conceived for Internet of Things (IoT) applications.The modules integrate a Cortex-M4-based STM32 microcontroller and a powerful Wi-Fi transceiver, compliant with IEEE 802.11 b/g/n standard for the 2.4 GHz band.The modules are cloud compatible thanks to the complete protocol package, which includes application and security layers. They can operate in serial-to-Wi-Fi and standalone mode, with customer applications developed in the subsystem based on the MicroPython environment.

 

Key features

  • 2.4 GHz IEEE 802.11 b/g/n low power transceiver
  • STM32 Cortex®-M4 with 2 MB Integrated Flash memory
  • Security: WPS, WEP, WPA2, WPA-Enterprise
  • Over The Air firmware update

 

Additional features

  • 2.4 GHz IEEE 802.11 b/g/n low power transceiver
  • STM32 Cortex®-M4 with 2 MB Integrated Flash memory
  • Certified RF (FCC, IC, CE)
  • UART/SPI-to-WiFi or standalone supported with MicroPython script language
  • TLS for End-to-End security integrated in all modules
  • Security: WPS, WEP, WPA2, WPA-Enterprise
  • HTTPS, MQTT, SMTP, WebSockets, IPv6 protocols and to easily connect applications to the cloud
  • Over The Air firmware update
  • System Modes: mini-AP mode,  IBSS and Station
  • Size: 26.92 x 15.24 x 2.35 mm
  • Advanced low-power modes
  • Standby with RTC: 43 µA
  • Sleep = 3 mA
  • Idle connected (DTIM=1) = 5 mA
  • RX traffic 105 mA typical
  • TX traffic 260 mA typical @ 10 dBm
  • Single voltage supply (3.3 V typical)
  • Industrial temperature range: -40° C to 85° C

Applications

  • Smart appliances
  • Industrial control and data acquisition
  • Home automation and security systems
  • Wireless sensors
  • Cable replacement
  • Medical equipment
  • Machine-to-machine communication

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