TABLE 1. SPECIFICATIONS ................................................................................................................................... 3 TABLE 2. OPERATING CONDITIONS ................................................................................................................4 TABLE 3. DIGITAL INPUT SPECIFICATIONS ..................................................................................................4 TABLE 4. DIGITAL OUTPUT SPECIFICATIONS ......................... FIGURE 1. BASIC DIAGRAM ............................................... 오류! 책갈피가 정의되어 있지 않습니다. FIGURE 2. BLOCK DIAGRAM ............................................................................................................................... 9 FIGURE 3. PIN DESCRIPTION .......................................................................................................................... 10 FIGURE 4. MODULE DIMENSION ...........................................................................
1. Overview The WizFi220 family of fully certified modules offers a quick, easy, and cost effective way for device and appliance manufacturers to add Wi-Fi capabilities to their products. The module provides serial UART interface which enables connection to any embedded design utilizing an 8/16/32-bit microcontroller via simple commands.
(1) Benefits and Features Brings Wi-Fi connectivity to any device with a microcontroller and serial HOST interface (UART) Minimal Serial to Wi-Fi “driver” footprint on host microcontroller and minor changes to existing host MCU firmware Offloading of smaller host microcontrollers from the Wi-Fi and TCP/ IP networking Simple AT commands for configuration and data communication DHCP/Static IP, TCP/UDP, Server/Client, DNS Reduces development time, testing and certification burden, accelerating time
(2) Specifications Specifications Description Radio Protocol IEEE 802.11b Compatible Supported Data Rates 11, 5.5, 2, 1 Mbps (802.11 b) Modulation DSSS and CCK RF Operating Frequency 2.412 - 2.462 GHz Antenna Options U.FL connector for external antenna Networking Protocols Power Consumption (Typical) RF Output Power (Typical) Security Protocols UDP, TCP/IP (IPv4), DHCP, ARP, DNS, HTTP/HTTPS Client and Server(*) Standby = 34.0 µA Receive = 124.0 mA Transmit = 290.0 mA 17dBm ± 1.
2. Hardware Specification (1) Operating Conditions Min Typ Max Unit +85 °C Operating Ambient Range -40 RTC Supply Voltage 1.2 3.3 3.6 V Single Supply Voltage 3.0 3.3 3.6 V Table 2. Operating Conditions (2) Digital Input Specifications IO Supply Voltage Min Typ Max Unit 1.62/3 1.8/3.3 1.98/3.63 V Input Low Voltage (VIL) -0.3 0.25VDDIO V Input High Voltage (VIH) 0.8VDDIO VDDIO V Schmitt trig. Low to High threshold point (VT+) 1.5 V Schmitt trig.
(4) I/O Digital Specification (Tri-State) IO Supply Voltage Min Typ Max 1.62/3 1.8/3.3 1.98/3.63 Unit Input Low Voltage (VIL) -0.3 0.25VDDIO V Input High Voltage (VIH) 0.8VDDIO VDDIO V Schmitt trig. Low to High threshold point (VT+) 1.5 Schmitt trig. High to Low threshold point (VT-) V 1 V Pull-Up Resistor (Ru) 0.05 1 MΩ Pull-Down Resistor (Rd) 0.05 1 V Output Low Voltage (VOL) 0 0.4 V Output High Voltage (VOH) 1.3 VDDIO ns Output rise time @ 3.
(5) RTC Input Specifications Min Typ Max Unit RTC Supply Voltage (VDDRTC) 1.2 3.6 V Input Low Voltage (VIL) -0.3 0.25VDDRTC V Input High Voltage (VIH) 0.8VDDRTC VDDRTC V 0.57VDDRTC 0.68VDDRTC V 0.27VDDRTC 0.35VDDRTC V Max Unit 1.2 3.6 V Output Low Voltage (VOL) 0 0.4 V Output High Voltage (VOH) 0.8VDDRTC VDDRTC V Output rise time (tTLH) 19 142 ns Output fall time (tTHL) 21 195 ns Schmitt trig. Low to High threshold point (VT+) Schmitt trig.
(7) Internal 1.8V regulator Min Typ Output Voltage (VOUT_1V8) 1.8 Maximum Output Current (IVOUT_1V8) 250 1.8V Regulator Enable "H" Voltage (EN_1V8) 1.8V Regulator Enable "L" Voltage (EN_1V8) Max Unit V 300 mA 1.0 VIN_3V3 V 0 0.25 V Table 8. Internal 1.8V regulator WizFi 210 User Manual (WIZnet Co., Ltd.
RF Specification Specification Modulation Technique Data Rate Description DSSS for 1, 2Mbps CCK for 5.5, 11Mbps IEEE 802.11b: 1, 2, 5.5 and 11Mbps -84dBm ± 1dB @ 11Mbps Receive Sensitivity -88dBm ± 1dB @ 5.5Mbps -90dBm ± 1dB @ 2Mbps -94dBm ± 1dB @ 1Mbps Transmit power (Average) 802.11b : 17dBm ± 1.5dB @ 11Mbps USA: 2.400 ~ 2.483GHz Frequency Range Europe: 2.400 ~ 2.483GHz Japan: 2.400 ~ 2.497GHz China: 2.400 ~ 2.
(8) Block Diagram Figure 1. Block Diagram WizFi 210 User Manual (WIZnet Co., Ltd.
(9) Pin Description Figure 2. Pin description PIN NAME I/ O IN BIAS DESCRIPTION 1 GND P NA Ground 2 JTAG_TCK (*) I Pull-up Joint Test Action Group Test Clock 3 JTAG_TDO (*) O NA Joint Test Action Group Test Data Out 4 JTAG_TDI (*) I Pull-up Joint Test Action Group Test Data In 5 JTAG_TMS (*) I Pull-up Joint Test Action Group Test Mode Select 6 JTAG_NTRST (*) I Pull-up 7 ALARM1 I Pull-down 8 RTC_OUT1 (*) O NA 9 VBAT P NA WizFi 210 User Manual (WIZnet Co., Ltd.
10 DC_DC_CNTL O NA 11 ALARM2 (*) I Pull-down 12 ADC1 (*) I NA General Analog to Digital Converter 1 13 ADC2 (*) I NA General Analog to Digital Converter 2 14 MSPI_MISO/GPIO 6 (*) I Pull-down 15 MSPI_MOSI/GPIO 7 (*) O Pull-down 16 MSPI_CLK/GPIO5 (*) O Pull-down 17 VOUT_1V8 (*) P NA Internal 1.
SPI Slave Receive Data Input from the 30 SSPI_MOSI (*) I Pull-down 31 GND P NA Ground 32 VIN_3V3 P NA Single Supply Port 33 EN_1V8 I NA 34 VDDIO(**) P NA 35 EXT_RESETN (*) IO Pull-up 36 UART1_CTS/GPIO 26 (*) HOST Internal 1.
44 GPIO31 IO Pull-down General Purpose Input Output 45 GPIO30 IO Pull-down General Purpose Input Output 46 GPIO29 (*) IO Pull-down General Purpose Input Output 47 GPIO28 IO Pull-down General Purpose Input Output 48 GND P NA Ground 49 EXT-ANT IO NA External Antenna pad Table 10. Pin description (*) is not available in this version.
(10) Module Dimension Figure 3. Module dimension WizFi 210 User Manual (WIZnet Co., Ltd.
(11) Recommend Pad Dimension Figure 4. Recommend Pad Dimension (12) LED Indications Condition D3(PWR) D1(GPIO 30) D2(GPIO 31) D4 (GPIO 28) ON Solid Power On - Serial-To-WiFi OK Associated Blink(-1-) - Blink(-1-1-) - OFF No Power Serial Data Rx - (Data Mode) Serial Data Rx - - Serial-To-WiFi Error Not Associated (AT Command Mode) - Table 11. LED Indications WizFi 210 User Manual (WIZnet Co., Ltd.
Application Guide (1) AP Scanning The Serial2WiFi interface can instruct the Wi-Fi radio to scan for access points and ad hoc networks with a specified SSID, BSSID and/or channel for a specified scan time. Scanning can be performed to find networks with a specific SSID, BSSID, networks operating on a specific radio channel, or a combination of these constraints. (2) Network Connection Management The connection management module is responsible for processing connection-related events.
as needed. However, the Adapter does not accept any new TCP/UDP client/server or data connection requests. The ATO command (terminated by the ASCII character “O”, not the number 0) is used to return to data mode. Applying the “AT+XEHT=1” command (Enable Hardware Trigger), you can change between data mode and command mode using GPIO 10, without escape sequence (“+++”).
connection. 6 5 S2W_EBADCID [ERROR: INVALID CID] Invalid Connection Identifier. 7 6 S2W_ENOTSUP [ERROR: NOT SUPPORTED] Operation or Feature not supported. 8 7 S2W_CON_SUCCESS [CONNECT ] TCP/IP connection successful. = the new CID in hexadecimal format. 9 8 S2W_ECIDCLOSE [DISCONNECT ] TCP/IP connection with the given CID is closed. This response is sent to the host when a connection is closed either by the remote device or by the serial host.
(6) AT Command example AT Command examples are described below. In this sample application, the WizFi220 associate to the AP and open the serial-to-wifi channel automatically after reboot. Description of each command is in the next chapter.
3. AT Commands This section provides a list of Serial2WiFi commands and their effects. Parameters are generally ASCII characters, e.g. ATEn with n=1 is the series of ASCII characters ‘A’, ‘T’, ‘E’, and ‘1’. Where some parameters are optional, mandatory parameters are denoted by < > and optional parameters by [ ]. If a parameter is mandatory, any associated sub-parameters are also mandatory; sub-parameters of an optional parameter are optional.
AT&K n=0 (disable) =1 (enable) AT&R n=0 (disable) =1 (enable) IF 1, software flow control is enabled. Ex) AT&K0, AT&K1 IF 1, hardware flow control is enabled.
(4) Wi-Fi interface Command Parameters Responses / Effects AT+NMAC=? Returns the current adapter MAC address. AT+NMAC2=? Returns the current adapter MAC address. 0: FCC AT+WREGDO MAIN= : supported Channel range is 1 to 11. 1: ETSI : supported Channel range is 1 to 13. 2: TELEC : supported Channel range is 1 to 14.
Authentication mode setting; 0 : None AT+WAUTH= n=0 to 2 1 : Open 2 : Shared with WEP Ex) AT+WAUTH=0 WEP key n is set to the value in . AT+WWEPn= n=1 to 4, Ex) AT+WWEP1=123456abdc AT+WWEP3=abcdef12345678901234567890 WPA passphrase set to the value in AT+WWPA= . Ex) AT+WWPA=12345678 AT+WPAPSK= , Computes and stores the WPA2 PSK value. Ex) AT+WPAPSK=WizFiDemoAP,12345678 Sets the WPA2 pre-shared key to the .
(6) Wireless configuration Command Parameters Responses / Effects AT+WRXACTIVE= n=0 (disable) =1 (enable) AT+WRXPS= n=0 (disable) =1 (enable) AT+MCSTSET= n=0 (disable) =1 (enable) AT+WP= 8(Max) to 15(Min) AT+WSYNCINTRL= 1 to 65535. AT+EXTPA= n=0 (disable) =1 (enable) AT+PSPOLLINTRL= 1 to 65535. If 1, 802.11 radio is enabled. Ex) AT+WRXACTIVE=1 If 1, Power Save mode is enabled. Ex) AT+WRXPS=1 If 1, multicast reception is enabled. Transmit power set to .
(8) Connection management Command Parameters Responses / Effects Attempt TCP client connection to Destination; AT+NCTCP= , CONNECT if successful. Ex) AT+NCTCP=192.168.3.200,5000 AT+NCUDP= , [<,Src.Port>] Open UDP client socket to Destination; CONNECT if successful. Ex) AT+NCUDP=192.168.3.200,5000 Start a TCP server on Port; CONNECT if AT+NSTCP= successful.
AP>, Table 21. Connection management (9) Battery check Command AT+BCHKSTRT = Parameters Responses / Effects Start checking battery each 0 < Batt.chk.freq≤ 100 packets transmitted. AT+ ,, AT+BCHK= Set the battery warning/standby level to enable the adaptor’s internal battery measuring logic Reset value of battery check frequency. AT+BCHKSTOP Stop checking battery.
Ex) AT+NAUTO=0,1,192.168.3.101,5000 (TCP/Client) AT+NAUTO=1,1, ,5001 (TCP/Server) AT+NAUTO=0,0,192.168.3.101,5002 (UDP, Local/Remote Port is 5002) ATC n=0 (disable) =1 (enable) IF 1, Auto Connect is enabled on next reboot or AT. ATA Start Auto Connect, including association. ATA2 Start Auto Connect using existing association. Return to a previous Auto Connect session; ATO returns an error if no such session exists. Table 24.
],[],[]] ping until C is issued. Ex) AT+PING=192.168.3.1,5 AT+TRACERO ,[[Interval],[],[],[]] Ex) AT+TRACEROUTE=74.125.155.103 AT+XDUM= n=1 (disable) =0 (enable) AT+XEHT= n=0 (disable) =1 (enable) If 1, UART Message is Disabled.(When Auto Connection Mode) If 1, Hardware Trigger is Enabled. Table 26. Miscellaneous WizFi 210 User Manual (WIZnet Co., Ltd.
4. Hardware Installation Please follow the instruction to install your WizFi220 Wi-Fi module on your system: Your PCB comes with a SMD PADs, which allows the system to SMT WizFi220 Wi-Fi module for using Wireless LAN (IEEE802.11b). Step 1: Mount the Wi-Fi module on your PCB Step 2: Connect the antenna. You have just completed the Wireless LAN hardware installation. When you boot up the system , you should expect to see the wireless LAN connection capacity.
End Product Labeling This transmitter module is authorized only for use in device where the antenna may be installed such that 20 cm may be maintained between the antenna and users. The final end product must be labeled in a visible area with the following: “Contains FCC ID: XR2WIZFI220.
5. Warranty WIZnet Co., Ltd offers the following limited warranties applicable only to the original purchaser. This offer is non-transferable. WIZnet warrants our products and its parts against defects in materials and workmanship under normal use for period of standard ONE(1) YEAR for the WizFi220 board and labor warranty after the date of original retail purchase. During this period, WIZnet will repair or replace a defective products or part free of charge. Warranty Conditions: 1.
