A adapter module for ESP-01 Wi-Fi module
3.3V voltage regulator circuit and onboard level conversion circuit can make 5V microcontroller easy to use with ESP-01 Wi-Fi module
Also, the item can be used with Arduino UNO R3 or compatible board

Working voltage: 4.5~5.5V (On-board 3.3V LDO Regulator)
Working current: 0-240mA
Interface logic voltage: 3.3V / 5V compatible(On-board level shift circuit)
material: plastic
Color: blue

Package Included:
2 x ESP-01 Adapter Module