Pico WiFi expansion board of raspberry pie is based on the WiFi communication module of esp8266 and supports TCP / UDP protocolThe onboard raspberry PI Pico interface is suitable for UART interface communication of raspberry PI Pico series mainboard and general serial port at command control, which can be used quicklyIt supports three WiFi working modes: STA, AP and sta + AP. It has built-in LwIP protocol stack and supports TCP / UDP communication; Esp8266 module and four layer board technology are adopted to enhance impedance matching, stronger anti-interference performance, better and more stable signalThere are 2 function buttons on the board, which is convenient for users to update various at firmware through raspberry pie PicoProvide complete supporting materials manual (raspberry PI Pico C / C + + and microprython and other sample programs)Communication interface: UARTSerial port baud rate: 115200 bpsWiFi standard: IEEE 802.11b/g/nFrequency range: 2400 ~ 2483.5 MHzWiFi working mode: WiFi STA, WiFi AP, WiFi STA+APAntenna: Onboard PCB antennaWorking voltage: 3.3 VWorking temperature: -40Celsius~85CelsiusColour:blueMaterial:PCBSize:7 x 5 x 2 CMPackage Contents:1 x Expanding BoardOnly the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.