Features: brand new and high quality The Wi-Fi module, also known as the serial port Wi-Fi module, belongs to the transmission layer of the Internet of Things. Its function is to convert the serial port or TTL level into an embedded module that conforms to the Wi-Fi wireless network communication standard. It is an important part of realizing wireless for smart home, m2m and other Internet of Things applications. Supports RTOS; Support UART/GPI0/ADC/PWM/sp1/I2C interface Built-in Tensilica L106 is a low-power 32-bit micro MCU, the main frequency is 80Mhz and 160Mhz, and it Built-in 1 channel 10bit high precision ADC; Built-in FlashIntegrated Wi-Fi for Mac/ BB/RF/PA/LNA Support multiple sleep modes, deep sleep current as low as 20uA Embedded Lwip protocol stack Support STA/AP/STA+AP working mode Support Android, I0S for Smart Config (APP) /AirKiss (WeChat) one-click network configuration General AT commands can be used quickly Support secondary development, integrated Windors, Linux development environment Specifications: Module Union Number :ESP-01E Package Way :Adopt DIP-18 package Complete: 802.11b/g/n Wi-Fi SoC module Size: approx 18x17mm/0.71x0.67in Serial rate up to 4Mbps Antenna form : IPEX antenna or spring antenna Spectrum range :2400~ 2483. 5MBHz Power supply range :Power supply voltage 3.0V~3.6V, power supply current>500mA: typical value 3.3V Support interface :UART/GPIO/ADC/PWM/SPI/I2C Number of IO ports :11 Serial port rate supports : 110~4608000 bps, the default is 115200 bps Security :WEP/WPA-PSK/WPA2-PSK SPI Flash :chip integrates 1Mb/2Mb Flash Note: Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you! Please allow slightly measuring deviation due to manual measurement. Package includes: 1 PC x ESP-01E Mudule