• name: HF-A21-SMT

  • Overview of Characteristic
  • Parameters
  • Documents
  • Order Information

Overview of Characteristic

●  Support IEEE802.11b/g/n Wireless Standards

●  Support TCP/UDP/HTTP Network Protocols

●  Support UART/Ethernet Data Interface

●  Support Work As STA/AP/AP+STA Mode

●  Support Router/Bridge Mode Networking

●  Support Internal/External Antenna Option

●  Support AT+ Instruction Set for Configuration

●  Support Friendly Web Configuration Page

●  Support Palmodic Signal

●  Support Smart Link Application Tools

●  Single +3.3V Power Supply

●  Small Size: 25 x 40mm

●  FCC/CE Certificated

 

 Class

Item

Parameters

Wireless Parameters

Certification

FCC/CE

Wireless standard

802.11 b/g/n

Frequency range

2.412GHz-2.484GHz

Transmit Power

802.11b: +20 dBm (Max.)

802.11g: +18 dBm (Max.)

802.11n: +15 dBm (Max.)

Configurable

ReceiverSensitivity

802.11b: -89 dBm

802.11g: -81 dBm

802.11n: -71 dBm

Antenna Option

External: I-PEX connector or PIN25 line out

Internal: On-board PCB antenna

Hardware

Parameters

Data Interface

UART: 1200bps - 230400bps

Ethernet: 10Mbps/100Mpbs

GPIO,I2C,USB

Operating Voltage

3.3V (+/-5%)

Operating Current

Avg:170mA  Peak:400mA

Operating Temperature

-40- 85

StorageTemperature

-45- 125

Dimensions and Size

25×40×3mm SMT

Software Parameters

Network Type

STA /AP/AP+STA mode

Security Mechanisms

WEP/WPA-PSK/WPA2-PSK/WAPI

Encryption

WEP64/WEP128/TKIP/AES

Work Mode

Transparent Transmission

Serial command

AT+instruction set

Network Protocol

TCP/UDP/ARP/ICMP/DHCP/DNS/HTTP

Max. TCP Connection

32

User Configuration

Web ServerAT command config.

User Application SW

Support customized application SW

Provide SDK package

Provide smart link tools

 
Data Sheet
 Title  Description
Version
Time
 HF-A21-SMT New Features
1.0
 2015.02.05
 HF-A21-SMT User Manual
1.1
 2015.02.03
 HF-A21-SMT_EVK_Design_Package
1.0
 2015.04.08
 AT Factory Command
1.0
 2015.04.08

HF-A21-SMT
Base on customer detailed requirement, HF-A21-SMT series modules provide different variants and physical type for detailed application.