5pcs ESP8266 ESP-12S Serial WIFI Wireless Module Transceiver ESP8266 4M Flash

Feature: ? Type: ESP-12S Wireless standards: 802.11 b / g / n Frequency range: 2.4GHz-2.5GHz (2400M-2483.5M) Data interface: UART / HSPI / I2C / I2S / Ir Remote Contorl GPIO / PWM Operating voltage: 3.0 ~ 3.6V (recommendation 3.3V) Working Current: Average: 80mA Operating temperature: -40 ?￣ ~ 125 ?￣ Storage temperature: Nomal temperature Schematic ? Package Included: ? 5 x ESP8266 ESP-12S Serial WIFI Module