Overview
PSF-B85 is an ultra low-power Wi-Fi module designed by ITEAD. The module
adopts the highly integrated Wi-Fi chip ESP8285. It features industry's highly
competitive compact packaging size and ultra-low power technology. Specially
designed for mobile devices and the Internet of Things application, it connects
physical devices to Wi-Fi wireless network to make Internet or LAN communications.
PSF-B85 has completed self-contained wireless network, with built-in 32-bit kernel
processor, on-chip SRAM, it can be used as the main control chip, but also as a WiFi
adapter. Simply apply it to other microcontroller-based designs by SPI/SDIO or
I2C/UART interface communication.
PSF-B85 supports multiple packaging form. Supports antenna of IPEX connector
and stamp hole interface.
PSF-B85 is widely applied to smart power grid, smart transportation, smart home,
handheld devices, industrial control, etc.
Features
802.11 b/g/n/d/e/i/k/r
Support STA/AP/STA+AP mode
WPA/WPA2 PSK and WP
Built-in TCP/IP protocol stack, support multi-way TCP Client connection
Support rich Socket AT commands
Support UART/GPIO data communication interface
Built-in 32 bit MCU, also work as application processor
3.3V single supply
Wi-Fi Direct (P2P) support
Support MIMO 1x1 and 2x1, STBC, A- MPDU and A-MSDU aggregation and 0.4μs
guard interval
WMM power save U-APSD
Multiple queue management to fully utilize traffic prioritization defined by 802.11e
standard.
Adaptive rate fallback algorithm sets the optimum transmission rate and Tx power
based on actual SNR and packet loss information.
Functions
Main functions
The main function of PSF-B85 includes serial transparent transmission, PWM control,
GPIO control.
Serial transparent transmission good transmission performance, the maximum
transmission rate is 460800bps.
PWM control adjust lighting, adjust led color, adjust motor speed and much more.
GPIO control control switch, relay and more.
Operating Mode
PSF-B85 supports three operating mode:STA/AP/STA+AP.
STA mode: the module connects to Internet via a router, thus mobile phone or
computer can remote control devices via Internet.
AP mode: PSF-B85 module worked as a hotspot, which realizes directly
communication between the module and phone/ computer, enables wireless LAN
control.
STA+AP mode: this is coexistence mode, which can realize seamlessly switch via the
Internet control, easy operation.
Applications
Serial to Wi-Fi;
Industrial transparent transmission DTU;
Wi-Fi remote monitoring/control;
Intelligent Toy;
Color LED control;
Firefighting and security integrated intelligence management;
Intelligent card terminals, wireless POS machines, Wi-Fi cameras, hand-held devices,
etc.
Main Technical Specifications
Connector
External：stamp hole interface
External：I-PEX connector
Hardware
Serial transparent
transmission
Peripheral
Interface
Operating Voltage 3.3V
GPIO Drive
capability
Operating Current
Operating
Temperature
Range
Storage
Temperature
Range
Size
Transmission rate 110-921600bps
TCP Client 5
UART，IIC，PWM，GPIO，ADC
Max：12mA
Continue sending=>Average value：~70mA,
Peak value: 200mA
Normal mode=> Average value: ~12mA, Peak
value: 200mA Standby
-40℃~125
Temp.：<40℃, Relative humidity：<90%R.H.
13.5mm*13.7mm*1mm
℃
：
<200uA
；
Software
Wireless network
types
Security WEP/WPA-PSK/WPA2-PSK
Encryption WEP64/WEP128/TKIP/AES
Firmware Upgrade UART Download / OTA (via network)
Network Protocols IPv4, TCP/UDP/FTP/HTTP
STA/AP/STA+AP
Hardware
We can offer PSF-A85 module PCB package, please contact customer service if you
need;
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