Aideepen ESP8266 Serial .3V 5V
<b>A adapter module for ESP-01 Wi-Fi module. </b> <br><b>3.3V voltage regulator circuit and onboard level conversion circuit can make 5V microcontroller easy to use with ESP-01 Wi-Fi module.</b> <br>Also, the item can be <b>used with Arduino UNO R3 or compatible board.</b> <br><br> <b>Features:</b> <br>Working voltage: 4.5~5.5V (On-board 3.3V LDO Regulator) <br>Working current: 0-240mA <br>Interface logic voltage: 3.3V / 5V compatible(On-board level shift circuit) <br><br> <b>Package Included:</b> <br>1 x ESP-01 Adapter Module