Part Number: ESP8266MOD, ESP8266
Function: Wi-Fi Module
Manufacturer: Espressif Inc
Description
The ESP8266MOD integrates antenna switches, RF balun, power amplifier, low noise receive
amplifier, filters and power management modules. The compact design minimizes the PCB
size and requires minimal external circuitries.
Pinouts:
Features
1. 802.11 b/g/n/e/i support.
2. Wi-Fi Direct (P2P) support.
3. P2P Discovery, P2P GO (Group Owner) mode, GC(Group Client) mode and P2P Power Management.
4. Infrastructure BSS Station mode / P2P mode / SoftAP mode support.
5. Hardware accelerators for CCMP (CBC-MAC, counter mode), TKIP (MIC, RC4), WAPI (SMS4), WEP (RC4), CRC.
6. WPA/WPA2 PSK, and WPS driver.
7. Additional 802.11i security features such as pre-authentication
Reference Site: https://forum.arduino.cc/index.php?topic=422328.0