CH340 USB to ESP8266 ESP-01 ESP-01S Wifi Adapter Board | Sensors | Serial/Converter

This is CH340 USB to ESP8266 ESP-01 ESP-01S Wifi Adapter Board from the category Sensors | Serial/Converter.

Working voltage: 4.5 to 5.5 volts (On-board 3.3v LDO Regulator)

300 mA, working current (LDO regulator can supply)

On-board toggle switch with two working modes: PROG for firmware programming and UART side for serial TTL debugging using AT commands

CH340G is a USB to serial TTL chip.

3.3 V logic level

Szie: 5.14 cm/1.97 in.

package contains:

ESP8266 ESP-01 Wifi Development Board, 1