ESP8266 serial port WIFI all IO leads to the WIFI transceiver wireless module ESP-201

Product features Product Name: ESP8266 ESP-201 Module; Total Size: (Board Size)3.4 x 2.5cm/1.3" x 1"(L*W); Sections: NO Package Content: 1 x ESP8266 ESP-201 Module,1 x 2.4G Receiver Antenna; Net Weight: 5g; Material: Silver Plating,Electric Parts Color: White Length: 15cm/5.9" Dimension: (Board Size)3.4 x 2.6cm/1.3" x 1"(L*W); Main Material: Silver Plating,Electric Parts Type: Antenna; Connector: IPEX Port