An ESP-01 Adapter 3.3V 5V Board for ESP-01 Wi-Fi module 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

Note: Package will include only one ESP-01 Adapter board without an ESP-01 module.

Specifications and Features:

1. On-board level shift circuit
2. Arduino UNO R3 and the compatible board can directly connect to this module;
3. Interface logic voltage: 3.3V / 5V compatible(On-board level shift circuit);
4. Working voltage: 4.5~5.5V (Onboard 3.3V LDO Regulator);
5. Working current: 240mA(MAX).