DFRobot
RainbowLink 4 Channel USB to Serial Converter (RS485 / RS232 / TTL)
· MPN: TEL0185
Introduction RainbowLink is a high-performance USB protocol converter designed for multi-channel serial communication and power output, making it ideal for I...
Introduction
RainbowLink is a high-performance USB protocol converter designed for multi-channel serial communication and power output, making it ideal for IoT and industrial applications. It integrates four independent communication channels—RS485, RS232, and two TTL channels—into a single device, providing a versatile, all-in-one solution for engineers managing diverse communication protocols.
Compatible with Windows and Linux, as well as devices like LattePanda and Raspberry Pi, RainbowLink is driver-free for most applications, with optional drivers available for enhanced functionality. Additionally, it provides simultaneous 12V, 5V, and 3.3V power outputs, eliminating the need for external power supplies, making it perfect for industrial, agricultural, and laboratory environments.
Key Features
Quick-Connect Lever Terminals for Easy Wiring
RainbowLink features lever-type quick-connect terminals, enabling fast, tool-free wiring. Designed for over 2000 connect-disconnect cycles, these terminals accommodate both pin headers and sockets, ensuring a secure and organized setup while minimizing preparation time and connection errors.
Four Independent Communication Channels
This compact converter includes:
- 1× RS485 channel
- 1× RS232 channel
- 2× TTL channels
Each channel operates independently, allowing engineers to monitor and control multiple serial devices simultaneously, eliminating the need for multiple converters and reducing clutter in complex setups.
Versatile Power Output Options
RainbowLink offers three built-in voltage outputs, providing flexibility for various testing needs:
- 12V (800mA)
- 5V (2A max via Type-C, 500mA via USB-A)
- 3.3V (200mA)
This eliminates the need for external power sources, making it ideal for sensor testing in remote or field environments.
Applications
- Industrial Sensor Testing & Debugging
- Multi-Protocol Device Debugging
- Laboratory & Development Board Debugging
Specifications
- USB Interface: Type-C
- Input Voltage: 5V
- Baud Rate: 2400 - 128,000 bps
- TTL Level: 3.3V
-
Communication Channels:
- TTL: 2
- RS485: 1
- RS232: 1
-
Power Output:
- 3.3V (200mA max)
- 5V (Up to 2A via Type-C, 500mA via USB-A)
- 12V (800mA max)
- Compatibility: Windows & Linux, LattePanda, Raspberry Pi
-
Driver Requirements:
- Driver-free for basic functionality
- Optional driver installation for unique device identifiers & enhanced performance
- Dimensions: 72mm × 47mm × 23mm
Shipping List
- RainbowLink 4-Channel USB to Serial Converter (RS485 / RS232 / TTL) ×1
Jargon buster
Plain-language definitions for the technical terms used above.
- baud
- Baud is the signalling rate of a serial connection, often used as the speed setting for UART communication. Matching the baud rate matters because both connected devices must use the same setting for readable data.
- Headers
- Rows of metal pins used to plug a module into a breadboard or connect it with jumper wires. Pre-soldered headers make the module easier to use straight away without needing to solder the pins yourself.
- IoT
- Short for Internet of Things, meaning physical devices that connect to networks or the internet to send data or be controlled remotely. It matters if you want projects such as connected sensors, remote controls or classroom data-logging activities.
- RS485
- RS485 is a robust wired serial communication standard often used in factories, farms, and buildings where cables may be long or electrically noisy. It matters because it lets this controller connect to industrial sensors, meters, and control equipment over longer distances than typical hobby serial wiring.
- USB to serial converter
- A chip that turns the USB connection from your computer into serial data that the microcontroller can understand. It matters because this board uses it for programming and debugging instead of appearing as a direct native USB device such as a keyboard or mouse.
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Brands
RainbowLink 4 Channel USB to Serial Converter CE Certificate
Compliance · 613.4 KB · Click any page to view full size
RainbowLink 4 Channel USB to Serial Converter RoHS Certificate
Compliance · 651.2 KB · Click any page to view full size
Supplier page — dfrobot.com
Supplier Description · 334.9 KB · Click any page to view full size
Related Tutorials
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