HF-A21

  • Product Code: UART to Wi-Fi/Eth [HF-A21]
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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 40 x 8mm

●  FCC/CE/Telec Certificated 


 Class

Item

Parameters

Wireless Parameters

Certification

FCC/CE/Telec

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

25×40×8mm 

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 Server+AT command config.

User Application SW

Support customized application SW

Provide SDK package

Provide smart link tools

 

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





Production Data 2016/Q1(New)
Key Feature Hardware AP Solution Ethernet SDK Support Lower Price
Processor MIPS SOC
Basic Frequency 380MHz
Operating System Ecos
Wi-Fi Standard 802.11bgn
Certification CE/FCC
Temp. Range -40~+85
Internal Antenna
I-PEX Connector
Size (mm) 25×40×8
Package Type DIP2x7
Work Voltage 3.3V
Current @No data ~170mA
Current @Tx Peak ~400mA
Resource-Flash 2MB
Resource-RAM 8MB
Interface-UART 1
Interface-Ethernet
Interface-GPIO
AP Mode √(Max 20 STA)
STA Mode
AP+STA Mode
Wi-Fi Repeater
Web Server
OTA Upgrade
SDK Support
Applications
HF-A11_Mass_Production_Upgrade [ Download Times: 539,  Date Update: 2016-11-21 18:11:00 ]
User Guide
HF-A21 User Manual [ Download Times: 578,  Date Update: 2016-11-08 16:55:46 ]
Application Notes
A11&A21_Series_AT Factory Command [ Download Times: 626,  Date Update: 2016-11-10 17:39:47 ]