Catalog > Internet of Things (IOT) Related Products > More Platforms ESP8266 UART Logic Level Convertor ESP8266 UART Logic Level Convertor HKD ESP8266 ESP-01 ADAPT 3.3V/5V WI-FI Wireless ESP8266 UART Logic Level Convertor for Arduino 3.3V to 5V Adapter, Operating Voltage: 4.5V ~ 5.5V (Onboard 3.3V LDO Regulator), Working Current: 0-240mA, Interface Logic Voltage: 3.3V / 5V Compatible (On-Board Level Conversion Circuit) 34.69 ZAR inc for 1 Each 39 in Stock Add Specifications, Prices & Availability may change without notice. Images are for illustration purposes only. E&OE Specifications 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 mAV