Modules, Development Kits and Software on Low - Power Embedded Wi-Fi
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GS1500M 802.11b/g/n Module Sample Pack of 5

Product Overview

The GS1500M is a fully certified module offering quick, easy and cost effective way for OEMs to enable leading edge Wi-Fi connectivity (802.11b/g/n) in their platforms. The module provides multiple serial UART or SPI interfaces, enabling connection to any embedded design utilizing a 8/16/32-bit microcontroller via simple commands. The GS1500M is an ideal solution for OEMs with no or limited Wi-Fi or RF expertise, as it dramatically reduces development time and eliminates the burden of testing and certification, allowing customers to exclusively focus on their core platform. The module supports Wi-Fi PHY rates up to 72.2 Mbps, is fully compliant with 802.11b/g/n and meets Wi-Fi Alliance and worldwide regulatory requirements. GS1500M also supports the newly available Wi-Fi Direct standard from Wi-Fi Alliance. This enables the module with best-in-class peer to peer networking which allows Wi-Fi devices to connect to one another without an access point, enabling easy transfer of content anytime, anywhere.

Multiple software configurations are available for running a stack or network services on the module. For applications utilizing a small 8 bit microcontroller host, the module supports a serial to Wi-Fi function and runs the full Wi-Fi and TCP/IP networking stacks, completely offloading the host. For applications utilizing more powerful microcontrollers, the networking stack and services can reside on the host while the module provides the IP to Wi-Fi functionality. In addition, it supports WEP/WPA/WPA2 security, Adhoc as well as Wi-Fi Protected Setup (WPS) for ease of provisioning.

The module SKU is single sided, pin compatible with previous GS1011M module, with castellation on the edges for I/O connection so module can be soldered down on customer application base-board.

GS1500M Embedded Design

GS1500M embedded Wi-Fi IO application

GS1500M Embedded Design

GS1500M embedded Serial/IP to Wi-Fi application

Block Diagram

GS1011M Block Diagram


  • Brings leading edge Wi-Fi and web connectivity to any platform with a microcontroller and serial HOST interface (UART or SPI)
  • Reduces development time while accelerating time to market
  • Self contained solution minimizes host processor loading
  • Easy device provisioning through ad-hoc or Wi-Fi Protected Set-up (WPS)
  • Low power consumption through dynamic power management modes:
    • Sleep and Deep Sleep


  • Operates with standard 802.11b/g/n access points at speeds up to 72.2 Mbps
    • Infrastructure or Adhoc mode
  • Supports peer to peer networking
  • Multiple UART and SPI interfaces
    • Supports Master and Slave SPI Modes
    • Up to 11 Mbps in SPI Master Mode
    • Up to 3 Mbps in SPI Slave Mode
    • Up to 921.6 kbps on UART
  • Full Wi-Fi stack including WPS and optional networking stack and services
  • 802.11i Security
    • WEP, WPA/WPA2 (AES and TKIP), Enterprise

Module Highlights

  • Single power source of 3.3V
  • Certified Modules (FCC/IC, Wi-Fi)
  • Rich I/O interfaces such as SPI, UART, GPIO, I2C, ADC, JTAG


Radio Protocol Supports IEEE 802.11b, 11g, 11n single stream
RF Output Power (Typical) 14 dBm (Internal PA)
RF Operating Frequency 2.412 - 2.484 GHz
Supported Data Rates 802.11b (CCK): 1, 2, 5.5, 11 Mbps
802.11g (OFDM): 6, 9, 12, 18, 24, 36, 48, 54 Mbps
802.11n (1x1 HT20): MCS0-7
Antenna Options PCB Trace or u.FL connector for external antenna
Operating Temperature Industrial (-40°C to +85°C)
Security Protocols WEP, WPA/WPA2(AES and TKIP), Enterprise(EAP-FAST, EAP-TLS, EAP-TTLS, PEAP)
Networking Protocols UDP, TCP/IP (IPv4), DHCP, ARP, DNS, SSL, HTTP/HTTPS Client and Server
Certifications and Compliance Wi-Fi, FCC, IC, ETSI, RoHS
I/O Interface UART (2), SPI (2), I2C, ADC (2), WAKE, ALARM (2), GPIOs, PWM, JTAG
Dimensions Internal PA = 36.8mm x 22.9mm (1.45 in x 0.9 in)
Power Source 3.3V
Power Consumption (Typical) Deep Sleep = TBD
Receive = TBD
Transmit = TBD (Internal PA)
  • Soldered-down, low-power Wi-Fi module with an internal PA and PCB antenna.
  • Operates with 802.11b/g/n access points at speeds up to 72Mbps
  • I/O interface: UART, SPI, GPIO, I2C, ADC, JTAG.
  • Modules do not include latest firmware. Customers need to reprogram firmware from the GainSpan Technical Support site
  • Pack of 5 modules.


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