The following are the few advantages for 2.4G wifi development Board that is based on ESP-12E and CH340G. After installing the hardware package for this development board on Arduino-1.6.5 IDE, you can use the IDE to program and design.
Features:
- Compatible with Arduino, you can use the Arduino IDE directly
- It makes you easier and faster to complete the project of Wifi remote home appliances
- Wireless Upload Program available
- It is built based on the mature and popular ESP8266 technology. You can take advantage the abundant resources available on the web.
- It has built-in USB-TTL serial with super reliable industrial strength CH340G for superior stability on all supported platforms.
- Antenna Type: Built-in PCB antenna is available.
- Wireless Network Mode: station / softAP / SoftAP + station.
- Wireless criteria: 802.11 b / g / n.
- WIFI @ 2.4 GHz, support for WPA / WPA2 security mode.
- Working voltage: 3.3V
- IO logic level: 3.3V
- Micro USB socket input current: 500mA(MAX)
- ADC pin (A0) input voltage: 0-3.3V
- Flash capacity: 4M Bytes
- Clock frequency: 80MHz or 160MHz
- Applications: Smart Car, Home automation, Sensor networks, Industrial wireless control

About the IO expansion board:
- Lead out all the IO ports of the ESP-12E development board
- Lead out the pins of 5V and 3.3V power supply
- Very convenient to connect with peripheral modules
- On-board 5V / 800mA DC-DC step-down converter circuit
- DC Jack input voltage: 6V-24VDC
- On-board power indicator
- Great for DIY