Lierda Science & Technology Group Co.
1 Product Overview ................................................................................................................................................... 1 1.1 Features ............................................................................................................................................. 1 1.2 Parameters ................................................................................................................................................... 1 1.3 Applications ....
1 ProductOverview LSD4WF‐3211I5SSisLSDTechnologyCo., Ltd. developedultra‐low‐power embedded WIFImodule, using the industry's lowest power, high‐performanceembeddedprocessorsWIFInetwork. Integratedhardwaremodulewithin theMAC, radiotransceiverunit, poweramplification unit, developedfor usersto useM4 coreunitsupports802.11b / g / nprotocol standards; LSD4WF‐3211I5SS modulara low‐powerWIFImodule, can help customersachieve productupgradewirelessnetwork communicationstothebasicserial communication. 1.
co onsumerwirelless productss 2 Hard dware Overview O w 2.1 Ap ppearance 2.
2.3 Distribution Pin Description NO. Network label Distribution Remark 1 GND GND 2 EXRESET The external reset pin 3 SOP2 Sense‐On‐Power 2 4 SOP0 Sense‐On‐Power 0 5 VDD 3.3V 6 VDD 3.
Timer CapturePort General SPI ChipPort General SPI ChipSelect UART1 RequestTo Send O UART0 RequestTo Send O I2S Audio PortData 0 (RX/TX) 11 GPIO6 General‐PurposeI/O UART0 RequestTo Send O Parallel CameraData Bit 0 UART1 Input Clear ToSend UART0 Input Clear ToSend Timer Capture Port 12 GPIO1 General‐Purpose I/O UART0 TX Data Pixel Clock FromParallel CameraSensor UART1 TX Data Timer CapturePort 13 GPIO2 General‐Purpose I/O UART0 RX Data UART1 RX Data Timer CapturePort2 ADC Channel (1.
Timer CapturePort 5 ADC Channel 3 Input (1.
I2C Data Parallel CameraHorizontal Sync UART0 RX Data Timer CapturePort 4 24 GPIO14 General‐Purpose I/O I2C Clock General SPIClock Parallel CameraData Bit 4 Timer CapturePort 5 25 GPIO15 General‐Purpose I/O General SPIMISO I2C Data Parallel CameraData Bit 5 Timer CapturePort 6 26 GPIO16 General‐Purpose I/O General SPIMOSI Parallel CameraData Bit 6 UART1 TX Data Timer CapturePort 7 27 GPIO17 General‐Purpose I/O UART1 RX Data General SPI ChipSelect Parallel CameraData Bit 7 28 GND GND 29 VCC
a user tomore quicklyand modulesfor docking, to achievedata transmissionnetwork; 3.1.1 APNetworking APthe wireless access pointis the center ofanetwork; Generally, the router asAP,undercertain circumstances,alsosomemobilephoneterminals, PAD asAP; LSD4WFmodulecan also beused asAP mode, for receivingthe network.Connectionsas shown below: 3.1.
串口连接 4.1.1 Serial Port Configuration Openserial debugging assistant, a baud rate of115200,1stop bit, no parity, as follows: Press thereset buttonmodule, wait for some time, after theinitializationis complete,you canreceiveATcommandsinput; EnterAT + WKEY = AT + WSKEY = WPAPSK, AES, lierda18f ,return+ ok,whichWPAPSKsecuritytype, AES dataencryption, lierda18f secret keyforencryption; EnterAT + WSSID = Lierda18f ,return+ ok; 4.2 CreatingSocket 4.2.
Serial port, enter AT + NETP = TCP, CLIENT, 5001,192.168.1.145 ,return+ ok; EnterAT + TCPDIS = on ,return+ ok; Insokittool,a message appearsas follows: Appear[TCP] 192.168.1.121:64191expressedsokitcreated successfully; Click to select[TCP] 192.168.1.121:64191,then fillin thesendingareasokittooldataneeds to be sent, and click Send,receiveserialdatasent successfully, as follows: Serial dataobtainedare as follows: 4.2.2 CreatingaSocketB Opensokittool again, chooseserver mode, TCP address is192.168.
Andcreate the firstSocket Communicationsasanareato fillin the datatransmitted bythe data, such as1234567890, click send, receive dataappearinthe serial, as follows: Theserial datais as follows: 4.2.3 PassthroughMode Enter theserial portof theAT + ENTM ,so that the moduleinto thetransparent mode. 5 Warning This device complies with part 15 of the FCC Rules.
