• USB Serial Terminal Lite 1
  • USB Serial Terminal Lite 2
  • USB Serial Terminal Lite 3
  • USB Serial Terminal Lite 4

USB Serial Terminal Lite

Smart phones serial terminal program. USB equipment using Silicon Laboratories CP210X, FTDI FT232 and Prolific PL2303, CDC/ACM UART to USB Bridge chips can be used to connect to your smart phone.Zigbee Chip TI CC2531(USB-Enabled SOC Solution for 2.4-GHz IEEE 802.15.4 and ZigBee App) can be used also.Provides the same functionality and the PC for serial communication terminal

- Supported UART to USB Bridge chip: Silicon Laboratories(CP210X), FTDI(FT232), Prolific(PL2303)
- ARDUINO Support(FTDI, CDC/ACM)
- Supported smart phones: USB host support smart phones (Samsung galaxy2/galaxy 3/galaxy note / galaxy note2/Vega racer R3)
- Supported Android version: Android version 3.1 (API Level 12) or

1. Quick Start1) Please use the OTG cable to connect the usb device on your smart phone.2) smart phone detect usb device, and then asks whether to run.Click OK to run the App.3) Click the Settings button (wrench icon) of upper right corner in order to set serial communication.4) Click the Save button.5) Click the Connect button (phone icon) of upper right corner in order to connect to the device.

2. Main Activity
- ASCII: Print received data as a ascii string.
- HEX: Print received data as a hexadecimal string.
- BIN: Print received data as a binary string.
- Connect Button(Phone icon):, connect to USB device. After connection this icon changed to close icon.
- Settings Button(Wrench icon): Serial communication setting window will open
- Upper(RX) CR, LF: Line separator configuration. process device to local system line separator conversion for received data before print text area
- Modem status buttons: show CTS, DSR, CD, RI pin status
- USB device description: USB device’s description window will open
- Clear received data:: Trash icon, clear all received data in text area
- Received data text area: print received data
- DTR button: control modem DTR status
- RTS button: control modem RTS status
- Lower(TX) CR/LF: Append line separator characters to transfer data
- Transfer(TX) Text input field: Enter the data(string, decimal, hexadecimal, binary) you want to transfer.Transfer data is entered as a string by default.Binary data is entered as shown below, you can enter in hex or binary or decimalDecimal: @ +숫자 3-digit(0~255) ex) CR: @013Hexadecimal: # + 2-digit hex, ex) CR: #0DBinary: & + 8-digit binary, ex) CR: &00001101

※ Escape @, #, &: insert twice in succession in order to send @, #, &ex) @@, ##, &&


- Send Button(Right arrow icon): Transfer input data to USB device
- Macro buttons 1 ~ 7: Set macro(had entered the frequently used data in advance) to transfer text field
- Macro Edit Button(Pencil icon): Macro edit window will open

3. Menu
- Settings: Serial Communication Settings window will open.
- USB Descriptions: USB equipment specification window will open.
- Edit Macro: The macro edit window will open.
- ASCII Code Table: ASCII code table lookup and input window will open. select ASCII code in order to input ASCII Codes
- Help: Help

4. Other features (view)
- Serial communication settings: Baud rate, Data bits, Parity, Stop bits, Handshaking Mode setting supported. Select enable file logging for logging received data in external storage path "[External Storage Root]/USBTerminal/YYMMDD_hhmmss.log".
- Macro edit: edit transfer data macro that frequently used. Macros can register up to seven.


- ASCII table: ASCII Code table. ASCII code inserted to text field When you select a code, and the window is closed, the inserted codes appended to tx text field

5. FAQQ: Why my smart phone detect usb device?A: Smartphones make sure it supports the USB Host.In addition, the Android version 3.1 (API Level 12) from the USB Host support.Occasionally on the smartphone does not recognize USB devices (eg Galaxy Note 1). Smartphone otg cable to connect to leave only the part that is connected to the equipment by unplugging and re-connect if you recognize that this case is.

Category : Tools

Related searches

Reviews (29)

M. D. Dec 25, 2018     

Good app, but I need a serial terminal that transmits every keystroke immediately and not only when you press "enter".

Aly. s. Oct 9, 2019     

Functional, works with USB adaptor, receives data. VT100 support and tx char as entered are desired features.

Arf. K. Jun 14, 2021     

Doesn't work in OPPO A54

Rob. Mar 12, 2015     

No faffing about with windows inf files. Works fine on Sony Xperia Z talking to STM32F103VBT6 microcontroller USB ports running as virtual com ports (VCP) CDC (Communications device) firmware with any VID/PID. You MUST open the port by clicking the telephone-handset button near top right so that it changes to an X. Then you only have to remember to actually send your command typed in the lower pane by clicking the button that looks like an envelope (or a right pointing arrow). The app can optionally self start as soon at the USB is plugged in to your device - so be careful to avoid two instances running at the same time. If setting up memory buttons (function keys) then notice that CR LF are not needed in each button if they are ticked above the lower write pane. Full five stars. Excellent. Amazing.

pra. p. Oct 29, 2014     

Your this apps very good and hi performance. It strong running and work always. Thank you for your make it.

Mur. S. U. Jun 30, 2016     

It works fine with my galaxy S5, and usefull, we can see whats going on

Jac. J. Jan 13, 2015     

Found another application instead which worked first time.

dav. s. Oct 8, 2016     

I try a lot of apps, but this one was the only one that really works fine for me, I'm very happy, I needed to work to check the GPS and AIS NMEA sentences, I don't need to carry my laptop with the f*****g Hyperterminal any more and works with many devices like the one from prolifics or Dlock thanks a lot to the Developers you did a really good work

Joe. M. Aug 16, 2014     

happy to got utf-8 support. I would buy the pro, but I need inline typing (console mode, like e.g. minicom do) and support of ansi vt100 colors (escape sequences) to use it as a real uart console.

Ste. S. Feb 15, 2015     

Does not receive from FT232QR equipped peripheral using USB OTG adapter. I tried different app and that one works just fine.

A. G. u. Mar 8, 2016     

FT232 based device didn't work with this.

Vik. O. Jan 15, 2016     

More interested in displaying adverts than connecting to my serial devices.

Pet. K. Jul 11, 2014     

Good for doing my logcat. However i cannot find a way to clear screen (CTRL-L) How do i do that?

Tom. C. Nov 20, 2014     

Still, the user interface is a bit akward at first glance..

Fel. G. N. Dec 14, 2016     

Interface looks great but misses data at 115200 bps (which was OK with DroidTerm).

Ili. M. Dec 28, 2014     

Prolific + both Asus FonePad 7 and zenfone 4

Alv. I. Aug 15, 2015     

Great job. The only that really works!

Mar. K. May 4, 2016     

Doesn't work on Moto X droid with PL2303

Zel. D. Dec 2, 2017     

Great app, thank you

Jam. M. Jun 13, 2014     

Can't get it to show menu screens in order to provision network equip in administration port. Not 24 columns x 80 characters? I see the data just as if it where the wrong speed but I have the settings correct.

A. G. u. Jul 2, 2014     

Greate tool, I can send msg to my arduino due

Bin. B. Mar 26, 2014     

Just one problem I encountered when working with a wave com modem, if I send a command like AT&W then I get an error dialog that pops up. It does not like the '&' when in ASCII mode.

Tha. K. Feb 27, 2014     

The app crashes as soon I press to send macros...

Ali. K. Mar 19, 2014     

It crashes as soon as it connects.

Dan. W. Dec 6, 2013     

I tried everything I could but it did not work for me on a Galaxy S4 using a Startech USB to Serial (Prolific 2303). The app installs and runs fine and I can see the USB to serial device but as soon as I hit connect the app crashes and closes. Any ideas?

Ric. S. Sep 24, 2013     

This app is the only one that suits my need in terminal interfacing with various serial devices. It really saves my time and free me up from my laptop while gets the job done.

Jor. E. Jul 24, 2013     

This is BY FAR the best interface for any serial terminal on the play store. It was exactly what I needed, but I had some issues. Twice I emailed the developer and he responded back with fixes THAT NIGHT. Now this is the perfect solution for me. Couldn't be more stoked about it.

Rog. H. Jun 25, 2013     

Works great with a Poltific PL2303 USB to Serial adapter on a Sony Xperia S upgraded to the latest offical firmware from Sony (Jellybean 4.1)

W. Z. Jul 17, 2013     

Hi, Can you please add more device PID & VID into your device_filter.xml? My CC2531 PID & VID is 5800 and 1105 respectively. Thank you. Other than that, all working perfectly fine!