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ESP8266 Serial Wi-Fi Wireless ESP-01 Adapter Module
This is a adapter module specially for ESP-01 Wi-Fi module. Onboard level conversion circuit and 3.3V voltage regulator circuit makes 5V microcontroller (such as Arduino board) easy to use ESP-01 Wi-Fi module. Features: - Arduino UNO R3 and the compatible board can directly connect to this module; - Interface logic voltage: 3.3V / 5V compatible(On-board level shift circuit); - Working voltage: 4.5~5.5V (On-board 3.3V LDO Regulator); - Working current: 240mA(MAX). NOTE: Ship only one ESP-01 Adapter module without ESP-01.