About Serial Terminal - RS232/485
Send and receive text or hexadecimal data to a Serial Port. App. can communicate with: • Arduino (original and clones) • ESP8266 boards • ESP32 boards • NodeMCU • ESP32-CAM-MB
Send and receive text or hexadecimal data to a Serial Port.
App. can communicate with:
• Arduino (original and clones)
• ESP8266 boards
• ESP32 boards
• NodeMCU
• ESP32-CAM-MB
• STM32 Nucleo-64 (ST-LINK/V2-1)
• many 3D Printers
• many CNC machines
• etc.
The above boards and devices usually have a USB connector and a chip that makes the USB to Serial communication possible.
Connection:
Phone must have USB OTG function and be able to provide power to the connected USB device (most phones nowadays).
Use USB OTG adapter cable (test that the adapter works by connecting a computer mouse).
Use normal USB data cable to connect your embedded board or device to the OTG adapter.
Note: symmetrical USB C - USB C cable might not work. Use normal cable and OTG adapter.
Some older boards or devices might not have a USB port. Instead, they have RS-232 port, RS-485 port or just UART pins where you can solder a connector. In that case, you will need an external USB to Serial adapter. There are many such adapters that you can buy online and they all have some chip inside that performs the USB to Serial communication.
Our app is compatible with the following chips:
• FTDI
• PL2303
• CP210x
• CH34x
• others that implement standard CDC ACM
App Features:
• data format (text / hexadecimal data) can be configured separately for the terminal screen and for the command input.
• local echo (also see what you sent).
• Rx Tx counter
• adjustable baud rate
• adjustable Byte delay
• adjustable font size
• additional features available in our app "Serial Terminal Pro".
Previous Versions
Here you can find the changelog of Serial Terminal - RS232/485 since it was posted on our website on 2025-05-02 16:17:06.
The latest version is and it was updated on 2026-10-18 08:04:12. See below the changes in each version.
Serial Terminal - RS232/485 version
Updated At: 2026-04-18
Changes: • fixed some bugs;
Serial Terminal - RS232/485 version
Updated At: 2026-02-19
Changes: • targetSdk 36;
• fixed some bugs;
• added checkboxes for RTS and DTR in Settings -> Serial port (will toggle once at connection start);
• added checkbox for "Clear after sending" so users can enable / disable it in Settings -> Command input;
• added support for CH343 chip.
Serial Terminal - RS232/485 version
Updated At: 2025-08-04
Changes: - targetSdk 35
Disclaimer
Official Google Play Link
We do not host Serial Terminal - RS232/485 on our servers. We did not scan it for viruses, adware, spyware or other type of malware. This app is hosted by Google and passed their terms and conditions to be listed there. We recommend caution when installing it.
The Google Play link for Serial Terminal - RS232/485 is provided to you by apps112.com without any warranties, representations or guarantees of any kind, so access it at your own risk.
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