# USB Serial Monitor for u-blox

> Debug electronics! Log USB serial to TXT/HEX/BIN. Bluetooth SPP relay supported.

Canonical page: [https://chrome-stats.com/d/com.cmy2345.usb.serial.monitor](https://chrome-stats.com/d/com.cmy2345.usb.serial.monitor)

## Overview

- **ID:** `com.cmy2345.usb.serial.monitor`
- **Platform:** Android
- **Type:** Android app
- **Status:** Available
- **Publisher:** korogaruhashi
- **Category:** TOOLS
- **Downloads:** 24
- **Version:** 4.0
- **Last updated:** 2026-07-26
- **First published:** 2026-07-11
- **Publisher country:** JP
- **Size:** 62 MB
- **Data as of:** 2026-09-11
- **Store listing:** [Google Play Store](https://play.google.com/store/apps/details?id=com.cmy2345.usb.serial.monitor)
- **Website:** [https://t29663097.github.io/](https://t29663097.github.io/)
- **Privacy policy:** [https://sites.google.com/view/usb-serial-bt/](https://sites.google.com/view/usb-serial-bt/)

## Description

[Turn your smartphone into a wireless bridge for serial communication!]<br>This USB Serial Monitor app transforms your Android device into a powerful, portable debugging environment. Perfect for field testing GNSS/GPS modules like u-blox, and DIY electronics or microcontroller development such as Arduino. It features a lightweight MVP (Minimum Viable Product) design, packing only the essential features you need.<br><br>[Powerful Features for the Field]<br><br>USB OTG Connection: Simply connect via cable to instantly display real-time UART output from microcontrollers and receivers.<br><br>Bluetooth SPP Relay: Wirelessly forward serial data received via USB to a PC or another device via Bluetooth in real-time. Powerfully supports wireless data analysis.<br><br>3 Formats for Raw Data Logging: Natively supports local saving of standard text (TXT) like NMEA, as well as UBX protocols and raw sensor data in BIN / HEX formats.<br><br>By eliminating unnecessary background processes, it reduces battery consumption and runs smoothly even in harsh outdoor environments. Whether you are a professional developer or a DIY electronics enthusiast, use this as your reliable dedicated tool!<br><br>*Note: This app is free to use, but contains ads to support ongoing development and maintenance. Thank you for your understanding.

## Rankings

- #2,529,798 — Overall

## Permissions and access

### Permissions

- `android.permission.ACCESS_ADSERVICES_AD_ID`
- `android.permission.ACCESS_ADSERVICES_ATTRIBUTION`
- `android.permission.ACCESS_ADSERVICES_TOPICS`
- `android.permission.ACCESS_NETWORK_STATE`
- `android.permission.BLUETOOTH`
- `android.permission.BLUETOOTH_ADMIN`
- `android.permission.BLUETOOTH_CONNECT`
- `android.permission.BLUETOOTH_SCAN`
- `android.permission.FOREGROUND_SERVICE`
- `android.permission.FOREGROUND_SERVICE_CONNECTED_DEVICE`
- `android.permission.FOREGROUND_SERVICE_DATA_SYNC`
- `android.permission.INTERNET`
- `android.permission.POST_NOTIFICATIONS`
- `android.permission.WAKE_LOCK`
- `com.android.vending.CHECK_LICENSE`
- `com.cmy2345.usb.serial.monitor.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION`
- `com.google.android.gms.permission.AD_ID`

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Source: [Chrome-Stats](https://chrome-stats.com/d/com.cmy2345.usb.serial.monitor)