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ESP-01 USB Programmer Adapter — CH340G, USB to ESP8266 UART, Flash & Debug
ESP-01 USB Programmer Adapter CH340G, USB to ESP8266 UART, Flash & Debug
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$4.92 USD
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ESP-01 USB Programmer Adapter — CH340G, USB to ESP8266 UART
This ESP-01 USB programmer adapter provides a complete USB-to-UART interface for flashing firmware and debugging the ESP8266 ESP-01 / ESP-01S module. Built around the CH340G USB-to-serial IC with an auto-reset circuit, 1000μF decoupling capacitor, and 3225 SMD crystal, it eliminates the need for manual GPIO0 wiring during firmware upload — simply plug in the ESP-01, connect USB, and flash.
Key Specifications
| Parameter | Value |
|---|---|
| USB-to-Serial IC | CH340G |
| Compatible Module | ESP8266 ESP-01 / ESP-01S |
| Interface | USB Type-A (to PC) |
| Auto-Reset | Yes (GPIO0 auto-pulled LOW for flash mode) |
| Decoupling Capacitor | 1000μF (stable 3.3V supply for ESP-01) |
| Crystal | 3225 SMD (CH340G clock) |
| Driver | CH340 driver (Windows/macOS/Linux) |
Why Use This Programmer vs Manual Wiring?
| Feature | This Programmer | Manual UART Adapter |
|---|---|---|
| GPIO0 Flash Mode | Auto (no wiring) | Manual (pull LOW each time) |
| Power Stability | 1000μF cap (stable) | Depends on adapter |
| Ease of Use | Plug and flash | Multiple wires needed |
Why Choose This ESP-01 Programmer?
- ✅ Auto flash mode — GPIO0 automatically pulled LOW, no manual wiring
- ✅ 1000μF capacitor — prevents brownout during ESP-01 WiFi transmission
- ✅ CH340G — reliable, widely supported USB-to-serial IC
- ✅ Direct ESP-01 socket — plug ESP-01 directly, no breadboard needed
- ✅ Arduino IDE compatible — works with ESP8266 board package for Arduino
Typical Applications
- ESP-01 / ESP-01S firmware flashing via Arduino IDE
- ESP8266 AT firmware update
- ESP-01 MicroPython / NodeMCU firmware upload
- ESP-01 serial debug monitoring
- IoT project ESP-01 programming
Package Contents
- 1 × ESP-01 USB Programmer Adapter (CH340G)
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