ESP8266 ESP-01 Adaptor Module 3.3V/5V

Description : Don't send 5 V signals to your ESP8266. The use of an ESP8266 with Arduino requires logic level translation of the UART signal, as provided by this easy 3.3 V - 5 V adapter. It makes the ESP-01 ESP8266 WiFi module (150445-91) the easiest WiFi transceiver for your Arduino (5 V). Adapter module for ESP-01 Wi-Fi module 3.3 V voltage regulator circuit & onboard level conversion for easy use of 5 V microcontroller with ESP-01 Wi-Fi module Compatible with UNO R3 4.5 ~ 5.5 V (on-board 3.3 V LDO Regulator) Interface logic voltage: 3.3 V / 5 V compatible (on-board level shift) Current: 0 - 240 mA