Espressif Systems ESP-WROOM-02U-N2 WiFi模块 SMD模块，ESP8266EX，16Mbits SPI闪存，UART模式，U.FL天线连接器

Security: WPA, WPA2

Data Rate: 72.2 Mb/s

Frequency: 2.4 GHz to 2.5 GHz

Dimensions: 18 mm x 14.3 mm x 3.2 mm

Unit Weight: 2 g

Output Power: 20 dBm

Interface Type: GPIO, HSPI, I2C, I2S, PWM, UART

Moisture Sensitive: Yes

Protocol Supported: 802.11 b/g/n

Supply Voltage - Max: 3.6 V

Supply Voltage - Min: 2.7 V

Antenna Connector Type: U.FL

Operating Supply Voltage: 2.7 V to 3.6 V

Supply Current Receiving: 56 mA

Supply Current Transmitting: 170 mA

Maximum Operating Temperature: + 85 C

Minimum Operating Temperature: - 40 C