> **Source:** Core Electronics is an Australian maker-electronics retailer and manufacturer based in Newcastle, NSW, run by a team of makers and educators. We design and manufacture our own product lines (PiicoDev, CE originals) and are official retailers for iconic maker and industrial brands including Raspberry Pi, Arduino, Adafruit, SparkFun and DFRobot. Orders ship Australia-wide from our Newcastle warehouse. Prices are in AUD and include GST. Pricing, stock and dispatch on this page are generated from the store's live catalog. Full machine-readable index: https://core-electronics.com.au/llms.txt

# 6-in-1 USB to Serial Converter

**Type:** Product page · **SKU:** FIT0781 · **Brand:** [DFRobot](https://core-electronics.com.au/brands/dfrobot-australia)
**Page:** https://core-electronics.com.au/6-in-1-usb-to-serial-converter.html ([markdown](https://core-electronics.com.au/6-in-1-usb-to-serial-converter.html.md))

Are you troubled by the various level standards and voltages of the serial port? This 6-in-1 USB to Serial Converter is just right for you. Check it out! One module...

## Pricing

- **Price:** $18.55 (inc GST) — $16.86 AUD, exc GST
- **Quantity discounts:** 6+ $16.02 (exc GST) · 12+ $15.35 (exc GST)

## Availability & dispatch

- In stock, ships same business day if ordered before 2PM (Australia/Sydney).
- We can dispatch 2 today, and up to 200 more in 8–12 days.

## How to buy

- **Build a cart:** compose `https://core-electronics.com.au/cart/link?items=FIT0781:1` (comma-separated SKU:qty pairs) and share the link. Opening it shows a confirmation page with live pricing and stock before anything is added to the cart.
- **Verify the cart first:** fetch `https://core-electronics.com.au/cart/link/FIT0781:1.md` for live line prices (inc & exc GST, quantity discounts applied), stock and dispatch estimates, and totals. Append `/to/{AU-postcode}` (or `/to/{country-code}:{postcode}`) before `.md` for delivery options and prices to that destination. Unknown, retired, or out-of-stock SKUs are flagged. (Query form `cart/link.md?items=...` also works but some robots parsers refuse query strings here.)
- **Checkout** is completed on-site and includes a captcha at the payment step. Share the cart link; checkout takes it from there.
- **Search the catalogue:** `https://core-electronics.com.au/search/{query}.md` (URL-encode the query; pages 2-3 at `search/{query}/{page}.md`; `search.md?q=` also works)
- **Payment methods, purchase orders, policies and contact details:** https://core-electronics.com.au/llms.txt
## Description

#### Are you troubled by the various level standards and voltages of the serial port? This 6-in-1 USB to Serial Converter is just right for you. Check it out!

One module has six functions. This 6-in-1 multifunctional serial converter supports USB-TTL, USB-232, USB-485, TTL-232, TTL-485, and 232-485 converting functions and is 3.3V/5V compatible. It works well with mainstream operating systems such as Windows and Linux. There is a 500mA fuse protection circuit integrated on the module for protecting the device against damage caused by short-circuit or over-current. The on-board indicator light indicates the working status of the device: USB is selected for the COM port (Yellow light) On, data receiving RX (Red light) Flashes, data transmitting TX (Green light) Flashes.

| **Mode** | **Dial switch1(USB)** | **Dial switch1(485)** | **Switch S1** | **Diagram** |
|---|---|---|---|---|
| USB to TTL | On | Off | Down(232-485) | ![Diagram](https://core-electronics.com.au/attachments/localcontent/Diagram1_1388883a3d5.png) |
| USB to 232 | On | Off | UP(232-TTL) | ![Diagram](https://core-electronics.com.au/attachments/localcontent/Diagram2_13640c42893.png) |
| USB to 485 | On | On | Down(232-485) | [![Diagram](https://core-electronics.com.au/attachments/localcontent/Diagram3_138388dfb26.png)](https://core-electronics.com.au/attachments/localcontent/Diagram3_138388dfb26.png) |
| USB to 232 | Off | Off | Down(232-485) | ![Diagram](https://core-electronics.com.au/attachments/localcontent/Diagram4_132530ba549.png) |
| TTL to 485 | Off | On | Down(232-485) | ![Diagram](https://core-electronics.com.au/attachments/localcontent/Diagram5_153680d8495.png) |
| 232 to 485 | Off | On | Down(232-485) | ![Diagram](https://core-electronics.com.au/attachments/localcontent/Diagram6_149820ed053.png) |

The module is small and stable. It adopts reliable patch dial switches, a life span of 100,000 times flicks, thus ensuring stable switching of working modes. The module can be widely used in serial communication occasions from USB to other interfaces.

#### Specification

- Chip: CP2012
- Compatible with 3.3V/5V voltage input and output
- Support USB-TTL, USB-232, USB-485, TTL-232, TTL-485, 232-485 six serial conversion
- Baud Rate: up to 2Mbps
- Over-current and short circuit protection
- On-board indicator light indicates working status
- Support Win8, Win7, WinXp, Win2K, WinCE, Linux, Mac system
- Size: 3.1cm x 1.8cm / 1.22 x 0.71 inch

#### Shipping List

- 6-in-1 USB to Serial Converter x1

## Images

- [Product image 1](https://core-electronics.com.au/media/catalog/product/f/i/fit0781.jpg)