--- product_id: 263421889 title: "FT232RL FTDI Mini USB to TTL Serial Converter Adapter Module 3.3V 5.5V FT232R Breakout FT232RL USB to Serial Mini USB to TTL Adapter Board for Arduino" brand: "hiletgo" price: "£13.42" currency: GBP in_stock: true reviews_count: 5 category: "Hi Letgo" url: https://www.desertcart.co.uk/products/263421889-ft232rl-ftdi-mini-usb-to-ttl-serial-converter-adapter-module store_origin: GB region: United Kingdom --- # Supports 3.3V & 5.5V working voltage range 500mA self-resetting fuse for safe, durable use FT232RL chipset for reliable USB to TTL conversion FT232RL FTDI Mini USB to TTL Serial Converter Adapter Module 3.3V 5.5V FT232R Breakout FT232RL USB to Serial Mini USB to TTL Adapter Board for Arduino **Brand:** hiletgo **Price:** £13.42 **Availability:** ✅ In Stock ## Summary > ⚡ Power your projects with the ultimate USB-to-TTL converter—no fuss, just code! ## Quick Answers - **What is this?** FT232RL FTDI Mini USB to TTL Serial Converter Adapter Module 3.3V 5.5V FT232R Breakout FT232RL USB to Serial Mini USB to TTL Adapter Board for Arduino by hiletgo - **How much does it cost?** £13.42 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/263421889-ft232rl-ftdi-mini-usb-to-ttl-serial-converter-adapter-module) ## Best For - hiletgo enthusiasts ## Why This Product - Trusted hiletgo brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Trusted Performance:** Highly rated with 4.5 stars from over 1,100 users who rely on it for flawless serial communication. - • **Compact & Lightweight:** Slim 15.2 x 10.2 cm design weighing just 10 grams—perfect for on-the-go prototyping. - • **Robust Power Handling:** Operates safely with a 500mA self-restoring fuse, protecting your projects from power surges. - • **Plug & Play Simplicity:** Effortlessly program Arduino Pro Mini without soldering—just connect and upload. - • **Universal Compatibility:** Seamlessly supports Windows 95 through Windows 7 (32/64-bit) for legacy and modern setups. ## Overview The HiLetgo FT232RL Mini USB to TTL Serial Converter is a compact, reliable adapter designed for seamless Arduino programming and serial communication. Featuring the FT232RL chipset, it supports both 3.3V and 5.5V logic levels, includes a 500mA self-resetting fuse for protection, and offers broad compatibility with Windows operating systems up to Windows 7. Lightweight and easy to use, it’s a favorite among makers and professionals for quick, solder-free connections. ## Description The best way to program the Arduino Pro Mini is with the FT232RL TTL converter. Just install the FTDI drivers and you're all ready to program. I don't even solder on pins. Just slide the Arduino over the pins of the ft232rl and hold it while you upload. Review: Excelente Review: Works like it should. Used it to program an atmega1284p without any trouble! In fact, it worked so quickly without problems that I thought it wasn’t working! ## Features - Chipset: FT232RL not genuine FTDI chip Working Voltage: 33V/55V - RXD/TXD transceiver communication indicator with 500MA self-restore Fuse - Pin Definition: DTRRXDTXVCCCTSGND - Support Win95/98/98se/ME/2000/XP/win7 32bit 64bit /Vsita/ do not Support Win8 - Chipset: FT232RL, not genuine FTDI chip, Working Voltage: 3.3V/5.5V - RXD/TXD transceiver communication indicator, with 500MA self-restore Fuse - Pin Definition: DTR,RXD,TX,VCC,CTS,GND - Support Win95/98/98se/ME/2000/XP/win7 32bit 64bit /Vsita/, do not Support Win8 - Brand: HiLetgo - Connector type: Mini USB ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B00IJXZQ7C | | Best Sellers Rank | #62,996 in Computers ( See Top 100 in Computers ) #152 in Serial Adapters | | Brand | HiLetgo | | Color | Red | | Compatible Devices | Personal computer, laptop, desktop | | Connector Type | Mini USB | | Current Rating | 0.5 Amps | | Customer Reviews | 4.5 4.5 out of 5 stars (1,149) | | Finish | Matte | | Input Voltage | 5.5 Volts | | Item Dimensions | 15.2 x 1.3 x 10.2 centimeters | | Item Weight | 0.01 Kilograms | | Manufacturer | HiLetgo | | Model Number | 3-01-0661-1 | | Number of Items | 1 | | Number of Ports | 1 | | Package Quantity | 1 | | Power Plug Type | No Plug | | Specific Uses For Product | TTL Module | | UPC | 509049833148 | | Unit Count | 1.0 Count | ## Product Details - **Colour:** Red - **Compatible devices:** Personal computer, laptop, desktop - **Connector type:** Mini USB - **Item dimensions L x W x H:** 15.2 x 1.3 x 10.2 centimeters - **Specific uses for product:** TTL Module ## Images ![FT232RL FTDI Mini USB to TTL Serial Converter Adapter Module 3.3V 5.5V FT232R Breakout FT232RL USB to Serial Mini USB to TTL Adapter Board for Arduino - Image 1](https://m.media-amazon.com/images/I/61Oo9nuPl2L.jpg) ## Available Options This product comes in different **Size** options. ## Questions & Answers **Q: Clock speed? Chipset?** A: The chipset is in the description, it is the FTDI FT232rl, it is internally clocked so there is no easy way to know what it is set to. If it helps I have personally run this unit at 115Kbps **Q: The ESP8266 Wi-Fi chip uses 3.3 vdc. With switch set to 3.3 volts on the programmer can you directlyTx and Rx to the ESP chip without level shift?** A: Yes. I've been programming numerous ESP8266 versions with this. No level shifting required **Q: Can it be powered via vcc and via usb at the same time?** A: While I have never done it, I only use it to program pro minis, it should be fine as long as it is under 500 mah, matches the 3.3/5v and shares the ground. I still think it would be best to program it only under USB power if possible though. At worst the fuse is tripped but that's what it is there for. If you ordered from me and do this, let me know your results. If it damages your board, please get in touch to get a no cost replacement. **Q: Gave up. can anyone get this to work? even tried with term emulator and known=-good mcu.** A: I found these only sort ot work with usb3.0. You can read, but not write. Don't forget some coms require rx and tx to flip. Rx of ftdi to tx of device... like with uart. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Review *by R***O on 5 January 2026* Excelente ### ⭐⭐⭐⭐⭐ Review *by J***N on 23 January 2026* Works like it should. Used it to program an atmega1284p without any trouble! In fact, it worked so quickly without problems that I thought it wasn’t working! ### ⭐⭐⭐⭐⭐ Review *by T***N on 16 February 2026* this worked well for my to flash a custom firmware on my SONOFF zigbee-router to enable it to connect to Home Assistant without using WiFi. ## Frequently Bought Together - HiLetgo FT232RL Mini USB to TTL Serial Converter Adapter Module 3.3V/5.5V - ELEGOO 120pcs Multicolored Dupont Wire 40pin Male to Female, 40pin Male to Male, 40pin Female to Female Breadboard Jumper Ribbon Cables Kit Compatible with Arduino Projects - EDGELEC 120pcs Breadboard Jumper Wires 10cm 15cm 20cm 30cm 40cm 50 cm 100cm Wire Length Optional Dupont Cable Assorted Kit Male to Female Male to Male Female to Female Multicolored Ribbon Cables --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.co.uk/products/263421889-ft232rl-ftdi-mini-usb-to-ttl-serial-converter-adapter-module](https://www.desertcart.co.uk/products/263421889-ft232rl-ftdi-mini-usb-to-ttl-serial-converter-adapter-module) --- *Product available on Desertcart United Kingdom* *Store origin: GB* *Last updated: 2026-05-19*