Base on customer detailed requirement, HF-A21-SMT series modules provide different variants and physical type for detailed application.
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 Parameters Wireless standard 802.11 b/g/n
Wireless Parameters Frequency range 2.412GHz-2.484GHz
Wireless Parameters Transmit Power 802.11b: +20 dBm (Max.)
Wireless Parameters Transmit Power 802.11g: +18 dBm (Max.)
Wireless Parameters Transmit Power 802.11n: +15 dBm (Max.)
Wireless Parameters Transmit Power Configurable
Wireless Parameters ReceiverSensitivity 802.11b: -89 dBm
Wireless Parameters ReceiverSensitivity 802.11g: -81 dBm
Wireless Parameters ReceiverSensitivity 802.11n: -71 dBm
Wireless Parameters Antenna Option External: I-PEX connector or PIN25 line out
Wireless Parameters Antenna Option Internal: On-board PCB antenna
Hardware Parameters
Data Interface UART: 1200bps - 230400bps
Hardware Parameters
Data Interface Ethernet: 10Mbps/100Mpbs
Hardware Parameters Data Interface GPIO,I2C,USB
Hardware Parameters Operating Voltage 3.3V (+/-5%)
Hardware Parameters Operating Current Avg:170mA Peak:400mA
Hardware Parameters Operating Temperature -40℃- 85℃
Hardware Parameters StorageTemperature
-45℃- 125℃
Hardware Parameters Dimensions and Size 25×40×3mm SMT
Software Parameters Network Type STA /AP/AP+STA mode
Software Parameters Security Mechanisms WEP/WPA-PSK/WPA2-PSK/WAPI
Software Parameters Encryption WEP64/WEP128/TKIP/AES
Software Parameters Work Mode Transparent Transmission
Software Parameters Serial command AT+instruction set
Software Parameters Network Protocol TCP/UDP/ARP/ICMP/DHCP/DNS/HTTP
Software Parameters Max. TCP Connection 32
Software Parameters User Configuration Web Server＋AT command config.
Software Parameters User Application SW Support customized application SW
Software Parameters User Application SW Provide SDK package
Software Parameters User Application SW Provide smart link tools
