SumoLink 4Pcs ESP8266 ESP01S Serial WiFi Wireless Module Compatible with Arduino

Introduction: The ESP8266 microcontroller integrates a Tensilica L106 32-bit RISC processor, which is extra-low power consumption and reaches a maximum clock speed of 160 MHz. 80% of the processing power is available for the developers using. And there's a lot of resources available for the ESP8266's development, and ESP-01S module is compatiable with Arduino. Specification: Package: DIP-8 Flash: 8Mbit Dimension: 24.7*14.4*11.0mm Serial/UART baud rate: 115200 Antenna: Onboard Update Version of the ESP-01, totally compatible with ESP-01, while have a better performance and recommoned to replace the ESP-01 with ESP-01S