Stemedu USB to ESP8266 ESP-01S WiFi Module CH340G USB TTL Serial Adapter

Product Overview

This Stemedu USB to ESP8266 ESP-01S Serial Wireless Wifi Adapter Module provides a convenient way to connect your ESP-01S module to a computer via USB. It features a CH340G USB to TTL driver IC onboard and is suitable for both serial TTL debugging and firmware programming.

Key Features

• Model: ESP-01S
• Interface: USB to Serial TTL
• Driver IC: CH340G
• Baud Rate: 115200
• Working Modes: Selectable via onboard toggle switch (UART for AT commands, PROG for firmware programming)
• Protocol: DOUT (SPI MODE when programming)
• Direct Connection: ESP-01 serial wifi module plugs directly into the yellow pin header

Package Includes

• 1 x ESP-01S Module
• 1 x USB to TTL Adapter Board

Important Notes

• For programming, please select SPI MODE as DOUT.
• Ensure CH340G drivers are installed before use.