# USB Serial Monitor

> Connect to USB-Serial devices and send/receive serial data.

Canonical page: [https://chrome-stats.com/d/com.keuwl.usbserialmonitor](https://chrome-stats.com/d/com.keuwl.usbserialmonitor)

## Overview

- **ID:** `com.keuwl.usbserialmonitor`
- **Platform:** Android
- **Type:** Android app
- **Status:** Removed
- **Publisher:** keuwlsoft
- **Category:** TOOLS
- **Downloads:** 13,316
- **Rating:** 3.92 / 5 (60 ratings)
- **Version:** 1.03
- **Last updated:** 2024-01-31
- **First published:** 2021-01-31
- **Size:** 4.69 MB
- **Data as of:** 2025-05-13
- **Store listing:** [Google Play Store](https://play.google.com/store/apps/details?id=com.keuwl.usbserialmonitor)
- **Website:** [https://www.keuwl.com/](https://www.keuwl.com/)
- **Privacy policy:** [https://www.keuwl.com/privacy\_policy/b/052pp2.html](https://www.keuwl.com/privacy_policy/b/052pp2.html)

## Description

USB Serial Monitor is an essential tool for hobbyists and developers working with USB-Serial devices. It supports connections to popular USB-Serial chips such as FTDI, Mega16u2, CH340, CP210x, and PL230x, allowing users to send and monitor serial data efficiently.

This extension provides configurable communication settings including baud rate, data bits, parity, and stop bits. Users can view data in both ASCII and hexadecimal formats, send strings using six memory buttons, and input data as hexadecimal. It also offers a results screen detailing connected USB devices and enables data saving to files. The included in-app user guide ensures quick setup and usage. The monitor can display up to 10,000 lines and supports sending up to 256 characters at a time, making it a convenient choice for serial communication tasks.

## 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.FOREGROUND_SERVICE`
- `android.permission.INTERNET`
- `android.permission.READ_EXTERNAL_STORAGE`
- `android.permission.VIBRATE`
- `android.permission.WAKE_LOCK`
- `android.permission.WRITE_EXTERNAL_STORAGE`
- `com.google.android.gms.permission.AD_ID`
- `com.keuwl.usbserialmonitor.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION`

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Source: [Chrome-Stats](https://chrome-stats.com/d/com.keuwl.usbserialmonitor)