DORHEA 4PCS ESP8266 ESP-12E WiFi Serial Wireless Transceiver Module ESP12E Remote Port Development Board Support STA/AP/STAPlusAP Working Mode for Ardu-ino NodeMCU

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 Input voltage: 3.3V Max I/O voltage: 3.6V Regular operation current draw: 70mA Operating temperature: -40 ° ~ 125 ° Current draw (peak): ~300mA Power-down leakage current: <10µA Output power: +19.5dBm (802.11b) Flash Memory Size: 1MB (8Mbit) Support STA/AP/STA+AP working mode Support AT remote upgrade and cloud OTA upgrade Recommended Flash capacity: 1 MB-16MB Please Attention: the ESP8266 IO adaper plate is not soldering 17 GPIO (save for D0, every GPIO can be PWM, I2C (software), 1-wire) ESP-12E Wi-Fi module containing the ESP8266 IC Onboard copper-trace antenna (Meandered Inverted-F Antenna (MIFA) Integrated TCP/IP stack 22 castellated-pin 2mm-pitch configuration Package included: 4 X ESP8266 ESP-12E ESP12E WiFi Wireless Transceiver