CH340C SU‑03T AI Offline Voice Downloader USB To Serial 3.3V TTL Burning Cable Firmware Programming Tool For Voice Module

CH340C SU‑03T AI Offline Voice Downloader Module

📌 Product Overview This CH340C USB‑to‑serial downloader is a dedicated programming tool designed for SU‑03T offline voice recognition modules. It adopts the CH340C chip to realize USB‑UART conversion, equipped with a power toggle switch to control 5V power‑on reset, which meets the special upgrade requirement that the SU‑03T detects serial download signal only at power‑on moment. RX and TX use 3.3V logic level to protect the voice chip from burnout. It provides a low‑cost alternative to the official expensive dedicated burner, supports firmware flashing via the Hummingbird‑M‑Update‑Tool, and is lightweight and easy to wire for DIY voice‑control project debugging and firmware updates. ✨ Core Features

• Built‑in CH340C chip for USB to UART serial conversion
• Independent power toggle switch (OFF / ON) for power‑on trigger download mode
• 3.3‑V level on TX / RX pin, safe for SU‑03T voice module
• 5V power output pin, GND, TX, RX lead‑out pins
• Matches Hummingbird‑M‑Update‑Tool firmware burning software
• Compact PCB design, small size and light weight
• Two optional forms: pin header version / dupont cable assembly version
• Plug‑and‑play after driver installation, stable serial communication

📋 Product Parameters

Item	Specification
Main Chip	CH340C
Communication	USB to UART
Logic Level	3.3V (TX / RX)
Power Output	5V
Control Mode	Physical slide power switch
Applicable Device	SU‑03T AI Offline Voice Module
PCB Dimension	41mm × 14mm
Net Weight	4.1g
Burning Tool	Hummingbird‑M‑Update‑Tool

📐 Dimension Info PCB Size：41mm × 14mm Net Weight：4.1g ⚠ Important Usage Notice

1. Cross‑connect TX and RX between downloader and SU‑03T module (TX‑RX, RX‑TX).
2. Trigger download mode by switching the power ON after opening the burning software.
3. Repeated toggle the switch if the serial port fails to be recognized.
4. Only for SU‑03T firmware upgrade, not for other general‑purpose download scenarios.
5. Install the CH340 driver before using on Windows computer.

🛠 Application Scenarios SU‑03T offline voice module firmware upgrade, AI voice control project debugging, DIY intelligent voice equipment development, serial burning auxiliary tool