Converter module USB to RS232 TTL

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The module is based on the popular chip CH340G that allows obtaining a serial COM port by converting the serial USB protocol in a serial RS232 protocol with TTL logic.
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Availability: In stock

Excl. Tax: €2.67 Incl. Tax: €3.26
7 available in ready-to-dispatch, upper quantity available in 4/7 days

Product Description


With this little adapter module with on board CH340G chip you can connect any serial device to your PC via USB port. The known chip CH340G is the heart of the module and takes care entirely of protocol conversion, adapting the standard USB to serial UART protocol.
By connecting this module to a USB port of a PC, we will get a virtual COM port for the communication with interfaces with serial connection, many MCUs and development kits as Arduino.

Technical specification:
Chip: CH340G
Connection port:  USB
Compatibility: Windows (32 and 64 bit), Mac OS 8 to OS X, Linux, Android
Test: via pin TX and RX
Serial protocol: RS232 UART
Logic: TTL

Power: 3.3VDC and 5VDC output to power their projects directly from the module

Connection mode:
1. 5VDC
2. 3.3VDC
3. TXD
4. RXD
5. GND

Strip line pitch: 2.54mm

Additional Information

Additional Information

SKU 03A257 (ARD03040CN)
Input Signal RS232
Output signal TTL


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