USB TO TTL (C)
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Overview
Introduction
This is a USB TO TTL (C) converter, connecting the USB connector of the PC or other devices to the device with TTL logic level for data communication, for example, such as microcontrollers, sensors, etc.
Features
- Adopts original FT232RNL chip, with stable high-speed communication, reliability, and better compatibility.
- Built-in self-recovery fuse and ESD for over-current/over-voltage protection, counter-current proof, improving shock resistance.
- Onboard IO protection, anti-surge design, with stable communication and safety.
- Onboard TTL serial port 3.3V/5V level transilation circuit, for switching TTL communication level.
- Onboard 3x LED indicator, for checking power and signal transmitting status.
- Plastic case, sandblasting process, nice-looking and compact.
Specification
Items Parameter Model USB to UART TTL Power Supply 5V (USB connector) UART (TTL level) 5V/3.3V Baud Rare 300bps ~ 3Mbps Hardware Flow Control CTS and RTS Operating Temperature -40℃~80℃ OS Support Win7/8/8.1/10/11, Mac, Linux, Android, WinCE, etc.
Interface Description
Pinout Function Input/Output VCC Provide 5V/3.3V for external devices (configurable via switch) - GND Ground - TXD UART data transmitting pin, connecting to MCU.RXD Output RXD UART data receiving pin, connecting to MCU.TX Input RTS# Sending request, for controlling data sending, connecting to MCU.CTS Output CTS# Clear sending, for controlling data sending, connecting to MCU.RTS Input
Dimensions
Working with Windows
Driver Installation
- Download the VCP Driver:
- Double-click CDM212364_Setup.exe to install by steps.
- Agree on the protocol and keep clicking on "Next".
- Connect the computer and device, and you can fund the new 4 COM ports in the Device Manager (If there is only one COM port after a while and cannot show more COM ports after trying, you can operate it according to #FAQ).
Device Usage
SSCOM
- Connect TXD and RXD of the device (i.e., short the blue and green wires).
- Open SSCOM, input "waveshare", select "Add Time and Pack ".
- Select 100ms intervals, and then you can observe the phenomenon of mutual sending and receiving.
Working with Linux
Device
- Raspbian, Ubuntu, CentOS, and other mainstream Linux systems generally with FT232 driver, no need to install the driver, connected to the ready-to-use!
- Take Raspberry Pi as an example, after connecting the device, you can use it by querying the serial device name with the following command.
- Similar to common USB device usage:
lsusb ls /dev/ttyUSB*
Device Usage
- Download the example
cd rm -rf USB_TO_TTL_\(C\)_Demo.zip rm -rf USB_TO_TTL_\(C\)_Demo wget https://files.waveshare.com/wiki/USB-TO-TTL-(C)/USB_TO_TTL_(C)_Demo.zip unzip USB_TO_TTL_\(C\)_Demo.zip -d ./USB_TO_TTL_\(C\)_Demo cd USB_TO_TTL_\(C\)_Demo/Linux/
- Short TXD (green wire) and RXD (blue wire).
- Example result:
Android
Software Installation
- Download Android, unzip it, and install it.
- The above software has integrated the FT232 driver, there is no need to install additional drivers.
Device Usage
- Connect the USB of USB TO TTL (C) to the USB port of your Android phone through the OTG adapter cable, and at the same time, connect another USB TO TTL (C) to your computer through the USB port:
- A prompt appears to ask if the application is allowed to access the USB device.
- Enter the string to be sent into the cell phone's serial assistant, and the computer side receives the corresponding string in the serial assistant sscom, and vice versa.
- If you need to use the English version of the test assistant, you can search and install the appropriate debugging assistant software, which usually comes with a driver.
MacOS
- First click on to download
- Click here to see how to install it.
- After the installation is complete, open the serial port assistant (MAC can directly download the serial port debugging assistant online).
Resource
Demo
Software
Driver
Install the following driver demo or download it from FTDI website, for other systems, you can download the corresponding VCP from the FTDI website.
- Windows — VCP Driver
- MacOS — VCP Driver
- Android—SerialTool
- Linux supports FTDI devices, no drivers are required.
Software
Datasheet
FAQ
You can short TXD, RXD, and then send data in the serial port debugging assistant to see if there is any corresponding data return, if there is, the function is normal. As shown in the #SSCOM.
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Linux supports this FTDI device, no need to install the driver.
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Support
Technical Support
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Working Time: 9 AM - 6 PM GMT+8 (Monday to Friday)