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CH340 USB to Serial Adapter for ESP8266 ESP-01 / ESP-01S – USB Programmer Module
This CH340 USB to Serial Adapter is specifically designed for easy programming of the ESP8266 ESP-01 and ESP-01S WiFi modules. It features the CH340 USB-to-TTL chip, allowing direct USB connection to your computer for uploading code or serial communication with ESP modules.
With onboard 3.3V regulation and dedicated 8-pin socket, it provides a simple plug-and-play experience for ESP-01 firmware flashing, development, and testing.
Key Features
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Specifically designed for ESP8266 ESP-01 / ESP-01S
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Built-in CH340 USB-to-TTL chip
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3.3V output suitable for ESP8266 (no external regulator needed)
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Plug-and-play operation via USB
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Compact design, fits directly into USB ports
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Ideal for uploading firmware, serial communication, and debugging
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LED indicators for power and data transmission
Specifications
| Parameter | Value |
|---|---|
| USB Chip | CH340 / CH340G |
| Supported Modules | ESP-01 / ESP-01S (8-pin socket) |
| Voltage Output | 3.3V (regulated) |
| Communication | USB to UART (TTL, 3.3V level) |
| Interface | USB Type-A |
| OS Support | Windows, macOS, Linux (driver required) |
| Use Case | Firmware upload, serial monitor |
Package Includes
1 × CH340 USB to Serial Adapter for ESP-01 / ESP-01S Module
⚠️ Note: For flashing ESP-01 firmware, hold GPIO0 LOW (can be done with jumper mods or external circuit).
