3.3V USB to ESP8266 ESP-01 Wi-Fi Adapter Module With CH340G USB to TTL Driver Serial Wireless Wifi Module for Arduino

Feature: Working voltage: 4.5V - 5.5V (On-board 3.3v LDO Regulator)Working current: 300mA(LDO regulator can supply)Selectable working mode: On-board toggle switch. UART side for serial TTL debugging by AT commands, PROG for firmware programmingUSB to serial TTL chip: CH340GLogic level: 3.3VApplications: Home automation, sensor networks, industrial wireless controlSzie: 5*1.4cm/1.97*0.55inch Note: 1. Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you! 2. Please allow 0.5-1cm measuring deviation due to manual measurement.Package include:1Pc x ESP-01 Wi-Fi Adapter Module With CH340G Driver