3Pcs ESP8266 ESP-01S Remote Serial Port WIFI Transceiver Wireless Module

Description 1MB 8Mbit Flash size AP STA AP STA modes available Very simple AT commands easy to use Low power consumption and smallInternal LWIP interface Only four pins interface VCC 3V3 GND TXD and RXD AT commands firmware New IC ESP8266exThis module just have small upgradation on ESP 01 PCB boardPackage included 3 x ESP 01S Wireless Module