SerialFlow: Serial Terminal

SerialFlow turns your Android phone or tablet into a portable serial terminal and monitor for embedded devices. Connect to Arduino, ESP32, STM32, GPS modules, sensors, and other hardware via USB OTG, Bluetooth Low Energy (BLE), or Bluetooth Classic (SPP).

Monitor serial data in real time, send commands, inspect Hex output, and troubleshoot your projects without a computer. Whether you are debugging firmware, testing wireless communication, or analyzing sensor data, SerialFlow puts powerful serial debugging tools in your pocket.

CONNECTION OPTIONS

• USB Serial (USB OTG) – Connect microcontrollers, development boards, and USB-to-serial adapters directly to your Android device.

• Bluetooth Classic (SPP) – Communicate wirelessly with compatible Bluetooth serial modules such as HC-05 and HC-06.

• Bluetooth Low Energy (BLE) – Connect to compatible BLE serial devices and exchange data wirelessly.

Switch between wired and wireless debugging workflows using a single serial terminal app.

KEY FEATURES

• Real-time serial monitoring and two-way data communication
• Text, Raw, and Modbus RTU views
• Hex display and hexadecimal command sending
• Fast log search and filtering with regular expression (Regex) support
• Configurable baud rate, parity, data bits, and stop bits for USB serial connections
• DTR and RTS control for supported USB devices
• Quick Commands for frequently used instructions
• Log export and sharing
• Background connection support
• ESP-IDF and Arduino-ESP32 log highlighting
• NMEA data parsing for GPS devices
• 3D attitude visualization for supported sensor data

BUILT FOR EMBEDDED DEVELOPMENT

Arduino & ESP32 Debugging
Monitor serial output, inspect firmware logs, and send commands while developing or troubleshooting microcontroller projects.

Bluetooth Serial Communication
Test wireless communication with Bluetooth Classic SPP modules and compatible BLE devices. Useful for IoT prototypes, wireless sensors, and embedded systems.

UART & USB Serial Monitoring
Use your Android device as a portable UART terminal for serial adapters, development boards, and embedded hardware.

GPS & Sensor Diagnostics
Parse NMEA messages, inspect GPS data, and visualize supported motion sensor output.

Log Analysis
Search, filter, and export serial output to identify errors, investigate device behavior, and keep records of debugging sessions.

SERIALFLOW PRO

Unlock advanced monitoring, automation, and visualization tools with a one-time purchase:

• Real-time waveform visualization
• GPS satellite diagnostics
• NMEA position map
• Loop Send with customizable intervals and repeat counts
• Larger log buffers
• Unlimited Quick Commands
• Remove ads

SerialFlow Pro is a one-time purchase with no subscription or automatic renewal.

FREE SERIAL TERMINAL

The free version includes essential serial communication tools: device connection, real-time monitoring, sending commands, log search and filtering, common data decoders, and basic Quick Commands.

SerialFlow is designed for developers, engineers, students, and makers who need a practical Android serial monitor for Arduino, ESP32, STM32, Bluetooth modules, GPS receivers, and other embedded devices.

Connect, monitor, and debug your hardware wherever you work.