ITEAD Intelligent Systems PSF-B85 Wireless medule User Manual

ITEAD Intelligent Systems Co., Ltd Wireless medule

User Manual

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 interfaceExternal：I-PEX connectorHardwarePeripheralInterface UART，IIC，PWM，GPIO，ADCOperating Voltage 3.3VGPIO Drivecapability Max：12mAOperating CurrentContinue sending=>Average value：~70mA,Peak value: 200mANormal mode=> Average value: ~12mA, Peakvalue: 200mA Standby：<200uAOperatingTemperatureRange-40℃~125℃StorageTemperatureRangeTemp.：<40℃, Relative humidity：<90%R.H.Size 13.5mm*13.7mm*1mm；Serial transparenttransmissionTransmission rate 110-921600bpsTCP Client 5SoftwareWireless networktypes STA/AP/STA+APSecurity WEP/WPA-PSK/WPA2-PSKEncryption WEP64/WEP128/TKIP/AESFirmware Upgrade UART Download / OTA (via network)Network Protocols IPv4, TCP/UDP/FTP/HTTPHardwareWe can offer PSF-A85 module PCB package, please contact customer service if youneed;
Pin DefinitionsPIN Function Description1 ANT WiFi Antenna2 ADC ADC, input range: 0V-1V；3 EN Chip enable terminal. Active high: chip works normally;Active low: chip close, very small current.4 GPIO16 GPIO165 GPIO14 GPIO14; HSPI_CLK6 GPIO12 GPIO12; HSPI_MISO7 GPIO13 GPIO13; HSPI_MOSI; UART0_CTS8 GPIO15 GPIO15; HSPI_CS; UART0_RTS9 GPIO2 Also used as a programming flash UART1_TX；GPIO210 GPIO0 GPIO0; SPI_CS211 GPIO4 GPIO412 GND GND13 GPIO9 PIHD；HSPIHD；GPIO914 GPIO10 SPIWP；HSPIWP；GPIO1015 GPIO11 SPI_CS0；GPIO1116 GPIO6 SPI_CLK；GPIO617 GPIO7 SPI_MSIO；GPIO718 GPIO8 SPI_MOSI；GPIO819 GPIO5 GPIO520 GND GND21 RX Also used as a programming flash UART Rx；GPIO322 TX Also used as a programming flash UART Tx ；GPIO1；SPI_CS123 3V3 Power supply24 RESET External reset（low active）
Power Consumption The following data are conducted at 25°temperature with 3.3V power supply. 1. All measurements were performed at the antenna interface. 2. All transmitted data are conducted based on a 90% duty cycle, continuous transmission mode. Wi-Fi Radio Characteristics The following data are from tests conducted at room temperature with 3.3V power supply.Note： 1. 72.2Mbps is measured under 802.11n mode, MCS = 7, GI = 200uS; 2. Maximum output power can be + 16.5dBm in 802.11b mode;
WiFi AntennaPSF-B85 has onboard ceramic antenna, users can directly use, no need to designagain. Please do not rub copper or connect wire below the antenna.Recommended Temperature GraphRefer to IPCJEDEC standard; Peak Temperature 250°C; Number of Times ≤2 times;
Related TerminologiesAbbreviation DescriptionWiFi Wireless FidelityUART Universal Asynchronous Receiver & TransmitterDTIM Delivery Traffic Indication MessageSOC System On a ChipP2P Point to PointTCP Transmission Control ProtocolIP Internet ProtocolSTBC Space-Time Block CodingMIMO Multiple Input Multiple OutputMPDU MAC Protocol Data UnitMSDU MAC Server Data UnitIEEE Institute Of Electrical And Electronics Engineersbps Bits Per SecondCCK Corporate Control KeyDQPSK Differential Quadrature Phase Shift KeyingDBPSK Differential Binary Phase Shift KeyingQAM Quadrature Amplitude ModulationOFDM Orthogonal Frequency Division MultiplexingWPA Wi-Fi Protected AccessWPS Wi-Fi Protected SetupTKIP Temporal Key Integrity ProtocolWAPI Wlan Authentication And Privacy InfrastructureWEP Wired Equivalent PrivacyCRC Cyclic Redundancy Check
FCC Caution: Any changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate this equipment. This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. This device and its antenna(s) must not be co-located or operating in conjunction with any other antenna or transmitter. 15.105 Information to the user. (b) For a Class B digital device or peripheral, the instructions furnished the user shall include the following or similar statement, placed in a prominent location in the text of the manual: Note: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures: —Reorient or relocate the receiving antenna. —Increase the separation between the equipment and receiver. —Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. —Consult the dealer or an experienced radio/TV technician for help. This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed and operated with minimum distance 20cm between the radiator and your body. Radiation Exposure Statement: This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. This transmitter must not be co-located or operating in conjunction with any other antenna or transmitter. The availability of some specific channels and/or operational frequency bands are country dependent and are firmware programmed at the factory to match the intended destination. The firmware setting is not accessible by the end user. The final end product must be labelled in a visible area with the following: “Contains Transmitter Module ESP8266”

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