ESP-07 ESP-08 ESP-12E ESP8266 Adapter
Price in Sri Lanka

Features:

• ISM : 2.4GHZ
• PA : +25 dbm
• 802.11 b/g/n
• This module requires a 3.3 volt supply for VCC, and 3.3V logic.
• It is not 5V tolant. Connect RX or TX on 5V for Arduino will destroy this module.
• You must use a logic level converter, or a 3.3V for Arduino
• The 3.3V supply on the for Arduino Uno has inadequate current capabilit to power this module.
• You must provide a separate, higher 3.3V supply(about 300mA or better)