GS2101MIP Low Power, 802.11b/g/n module PCB Antenna

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The GS2101M module provides a quick, easy, and cost effective way for device and appliance manufacturers to add Wi-Fi connectivity to their products. Intended for smart energy and sensor applications, the module runs the SEP 2.0 Smart Energy Profile stack and has 3 high bit-rate sigma-delta ADCs for high resolution sensor and measurement devices.

This module provides a low cost, high speed serial to Wi-Fi connection to an embedded design built on an 8/16/32-bit microcontroller, achieving up to 25 Mbps throughput over an SDIO interface.

The GS2101M is an ideal solution for organizations with limited WiFi or RF expertise or for those seeking faster time to market, as it reduces RF design time and removes the burden of testing and certification. The module is IEEE 802.11b/g/n compliant, and meets worldwide regulatory and Wi-Fi Alliance certification requirements.

The module runs the full Wi-Fi and TCP/IP networking stacks, completely offloading the host microcontroller. It supports a complete suite of security protocols, also without tasking the host microcontroller, including WPA/WPA2-Enteprise and Personal security modes, legacy WEP encryption, and upper layer security protocols such as TLS/SS and HTTPs. Alternatively, it can be run self-contained without a host.

For ease of provisioning, the module can be set up simply and easily from a smartphone or laptop through the innovative Limited AP mode or with Wi-Fi Protected Setup (WPS). The module is single sided with castellation on the edges for the I/O connections for soldering down on the product’s baseboard.

The GS2101M has extended range with industry leading receiver sensitivity. It is available with an u.FL connector to add an external antenna for max performance or a PCB antenna for convenience while saving space. It is US/Canada (FCC /IC), Europe (ETSI) and Japan (TELEC) certified.

  • High resolution sensing and energy measurement 
  • Adds low power, high speed Wi-Fi and Internet connectivity to any device with a micro-controller and serial host interface 
  • Certified module reduces development time, testing and certification, accelerating time to market
  • Full offload solution minimizes load on host processor 
  • Easy smartphone provisioning with Limited AP or Wi-Fi Protected Set-up (WPS) 
  • Ultra low power consumption through dynamic power management modes o 
    • Standby, Sleep, Deep Sleep 
  • Extended range


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Radio Protocol IEEE 802.11b/g/n
Pin Count 40 pins RF Output Power (Typical) +14 dBm (802.11b), +11 dBM (802.11n)
Rx Sensitivity -95 dBm
Wake From Standby Time 1 ms (1 millisecond)
RF Operating Frequency 2.4 - 2.495 GHz
Supported Data Rates 72, 65, 58, 43, 29, 22, 14, 7 Mbps (802.11n), 54, 48, 36, 24, 18, 12, 9, 6 Mbps (802.11g) 11, 5.5, 2, 1 Mbps (802.11b)
Antenna Options External antenna (u.FL connector) or PCB trace antenna
Operating Temperature -40? to +85?C
Security Protocols WPA/WPA2 - Personal, WPA/WPA2 - Enterprise (PEAP, EAP-FAST, EAP-TLS, EAP-TTLS), WEP, TLS/SSL Client and Server, HTTPs
Networking Protocols TCP, UDP, IPv4, IPv6, TLS Client and Server, SNTP client, DHCP Client and Server v4, DHCP Client and Server v6, DNS Client and Server, mDNS, DNS-SD, HTTP Client and Server, and XML Parser
Certifications and Compliance FCC, IC, TELEC, ETSI, RoHS, Wi-Fi CERTIFIED, Wi-Fi Direct, WPS 2.0, SEP 2.0
I/O Interfaces SPI, UART, SDIO, I2C, I2S,GPIO, ADC (16 bit), ADC (12 bit), JTAG
Host Connections SPI, UART, SDIO (typically to an external microcontroller)
Internal Flash 4 MB
Outline Dimensions 18 mm x 25 mm x 2.5 mm (shield)
I/O Voltage 2.7-3.6V
Operating Voltage 2.7-3.6V VBAT 1.6-3.6V


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GS2101MIP Product Brief

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