Two ShillehTek FT232RL Mini USB to TTL Serial Converter boards side by side

FT232RL Mini USB to TTL Serial Converter 2-Pack 3.3V/5V for Arduino & Raspberry Pi

SKU HO-A533-21V8

$6.99 USD Shipping & tax calculated at checkout
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FT232RL mini USB-to-TTL serial adapter (2-pack) for Arduino and Raspberry Pi projects with dual 3.3V/5V operation for easy device connectivity.

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Overview

Product Overview

The FT232RL Mini USB to TTL Serial Converter is a compact, maker-focused adapter that links microcontrollers to a PC for straightforward serial communication. Powered by the FT232RL chip, this module provides reliable data transfer for programming, firmware updates, and serial debugging. It supports 3.3V and 5V operation, making it compatible with a wide range of development boards including Arduino and Raspberry Pi, and it uses a mini USB connector for plug-and-play setup without complicated wiring. Supplied as a convenient 2-pack, these converters give you a spare for parallel projects or quick swaps during prototyping, keeping benches tidy and workflows efficient for hobbyists and professionals alike.

Questions & answers

Frequently asked questions

It is designed for USB-to-UART serial communication with development boards, including Arduino and Raspberry Pi. Select the logic level that matches the target board and use it for serial monitoring, programming, firmware updates, or debugging.
The module uses a mini USB connection to link a computer to TTL serial pins, so setup is straightforward for typical maker workflows. It does not require complicated wiring beyond the appropriate serial connections to the target device.
This adapter supports both 3.3V and 5V TTL serial operation. Match the converter’s logic level to the microcontroller or single-board computer you are connecting to avoid unreliable communication or possible hardware issues.
It is commonly used to connect a PC to a microcontroller’s UART for firmware uploads, serial console access, and debugging. It is useful when a board lacks built-in USB serial or when an extra serial adapter is needed.
The 2-pack is practical for keeping one adapter on the bench and one in a project kit, or for swapping adapters during troubleshooting. It also supports parallel prototyping when multiple boards need USB-to-serial access.

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What's included

Features & Specs

USB to TTL Bridge Converts USB to TTL serial for direct PC-to-microcontroller communication.

FT232RL Chipset Uses the FT232RL chip for stable and widely-supported serial data transfer.

Dual Voltage Support Selectable 3.3V and 5V operation to match Arduino, Raspberry Pi, and other boards.

Mini USB Interface Features a mini USB connector for simple plug-and-play connectivity.

Easy Setup Requires no special drivers on most systems for quick deployment.

IDE and Debugging Ready Provides reliable serial access for programming and debugging embedded projects.

Two-Pack Convenience Includes two identical converters to support multiple projects or provide a spare.

Reference

Documents

Full Product Manual ShillehTek FT232RL Mini USB to TTL Serial Converter 3.3V/5V Arduino (2pcs) | ShillehTek Product Manual In-depth setup guide with wiring, code examples, and troubleshooting.

Datasheet

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