USB-RS-232 (TTL level) converter for connecting serial interfaces (TTL level) to the PC via USB
€ 90,44 Incl. 19% VAT plus shipping
Our promise to you
This USB-to-RS-232 converter with TTL level is ideal for debugging purposes in microcontroller circuits. Since most controllers provide only TTL signals at the processor’s serial interfaces, this tool is perfectly suited for conveniently monitoring those signals on a PC or notebook. The galvanic isolation also provides a high level of protection for your processor board.
Technical Specifications
USB interface:
- USB 2.0 interface up to 480 Mbit/s
- Quick setup thanks to plug-and-play integration
- Control: API for Windows and Linux (DELIB driver library), command-line interface
RS-232 Converter:
- USB to RS-232 (TTL) Converter
- Electrically isolated up to 500 V
- 50 baud to 3 Mbaud (software-configurable)
- Windows VCP (Virtual COM Port)
- Linux driver included
USB interface with Plug & Play
Thanks to Plug & Play, our modules with USB interface are automatically recognized and are immediately ready for use without any configuration. Configuration is only required if several USB modules from the same product series are used on the same system.
LEDs
Each digital input and output has a separate LED that lights up when the signal status is active. The status of the operating voltage, communication with the interface, error events or the occurrence of a timeout can also be displayed.
General information
| Supply voltage | +5 V (via the USB connection) |
|---|---|
| Interface | USB 2.0 / USB 1.1 |
| TTL level |
|
| Galvanic isolation | up to 500 V AC |
| Baud rate | 50 baud to 3 MBaud |
| LEDs |
|
| Connection TTL side | Single wires (RX, TX, GND) |
| Connection cable | approx. 2 m |
| Operating temperature | +10 °C ... +50 °C |
| Enclosure dimensions | 84.5 mm x 21 mm x 12.5 mm (L x W x H) |
Manual
Manual USB-RS-232-TTL-Stick
Hardware and software description
Hardware description
- List of technical data
- Definition of the LEDs
Software description
- Installing VCP drivers
Typical Application Areas:
- Microcontroller debugging and development:
The USB-RS232-TTL-STICK is ideally suited for direct communication with microcontroller UARTs at TTL level. Developers can use it to analyze debug output in real time on a PC. - Firmware programming and bootloader access:
Perfect for uploading and testing firmware via serial bootloader interfaces, especially in embedded systems without native USB connectivity. - Laboratory and test bench applications:
In test environments, the module serves as a flexible interface for evaluating and validating serial TTL signals in experimental setups. - Replacement for classic RS232 ports:
The stick replaces missing serial interfaces on modern PCs and provides a reliable virtual COM port connection. - Training and education in embedded systems:
Thanks to its simple USB connection, the device is ideally suited for training in microcontrollers, UART communication, and embedded development.
Comparison of USB-RS232-TTL-STICK with common market products
Safety & galvanic isolation |
|||
| Feature | Market Comparison | Advantages of the DEDITEC USB-RS232-TTL-STICK | Practical Benefits of the modules |
|---|---|---|---|
| Signal isolation | often no galvanic isolation is provided | Electrically isolated signals prevent equalizing currents between different potentials | Prevents equalizing currents between different potentials and enhances operational safety in complex systems. |
Hardware flexibility |
|||
| Feature | Market Comparison | Advantages of the DEDITEC USB-RS232-TTL-STICK | Practical Benefits of the modules |
| Specific connection cables | usually no cable included or no customer-specific version | Custom connection cables can be provided | Simplifies installation and reduces sources of error during wiring. |
Reliability |
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| Feature | Market Comparison | Advantages of the DEDITEC USB-RS232-TTL-STICK | Practical Benefits of the modules |
| Long-term availability | Typically 3–5 years | 10‑year guaranteed availability | Simplifies long-term plant planning and reduces risks associated with early product discontinuations. |
| Production location | Many manufacturers produce in Asia | Made in Germany | Enables short supply chains, consistent quality assurance, and a reliable supply of spare parts. |
| MTBF | Low-cost OEM modules with shorter lifespan | High MTBF values | Reduces the probability of failure and increases availability in continuous-operation applications. |
| Series maturity | Many products are new or frequently revised | Series with 15+ years of history | Offers a proven platform with stable firmware and mature hardware. |
Economy |
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| Feature | Market Comparison | Advantages of the DEDITEC USB-RS232-TTL-STICK | Practical Benefits of the modules |
| Price-performance ratio | Major brands significantly more expensive | Very good price‑performance ratio | Reduces total cost per channel and enables cost-effective system expansions. |
| License costs | Modbus/features often require additional payment | No additional costs for protocols | Simplifies cost planning and prevents unexpected follow-up costs associated with functional or protocol expansions. |
| Series prices | Large manufacturers often inflexible | Attractive volume pricing | Simplifies budget planning for larger volumes and enables cost-effective scaling of projects. |
Häufig gestellte Fragen (FAQ)
WHERE CAN I FIND INFORMATION ABOUT THE AVAILABLE INTERFACES AND FUNCTIONS?
A complete description of the supported interfaces, communication options, and device functions can be found in the module manual. It is available at any time via the "Downloads and Manuals" tab on the respective product page as well as in the download section of the DEDITEC homepage.
