Screen Mirroring Tool scrcpy

If you do not have an HDMI monitor, use scrcpy on the host computer to mirror the Android 15 graphical interface of RUBIK Pi 3 and operate the device using a mouse and a keyboard.

scrcpy is an open-source tool maintained by Genymobile. It can display and control Android devices over USB or TCP/IP on Linux, Windows, and macOS hosts. It does not require root access and does not require an app to be installed on the device. For the official project and documentation, see https://github.com/Genymobile/scrcpy.

Prerequisites

1. RUBIK Pi 3 has booted Android 15.
2. ADB is installed on the host, and the host is connected to RUBIK Pi 3 via a USB Type-C data cable.
3. ADB login has been completed, and adb devices can detect the device.

Check the ADB connection:

adb devices

Sample output:

List of devices attached
d80af579               device

Install scrcpy

Windows host

Use WinGet to install scrcpy

Run the following command in Windows Terminal or PowerShell:

winget install --exact Genymobile.scrcpy

The WinGet installation method automatically installs the necessary ADB dependencies required by scrcpy. Once the installation is complete, restart the terminal to apply the updated environment variables.

Use the official release package

1. Go to scrcpy releases.
2. Download the Windows package for your host architecture, for example, scrcpy-win64-*.zip.
3. Extract the package.
4. Double-click open_a_terminal_here.bat in the extracted directory.

Ubuntu/Linux host

Use the official release package

1. Go to scrcpy releases.
2. Download the Linux x86_64 static build, for example, scrcpy-linux-x86_64-*.tar.gz.
3. Extract the package and run scrcpy in the extracted directory.

Use the installation script

To install the latest release from the source repository, run the following commands:

sudo apt update
sudo apt install ffmpeg libsdl3-0 libusb-1.0-0 adb wget \
                 gcc git pkg-config meson ninja-build libsdl3-dev \
                 libavcodec-dev libavdevice-dev libavformat-dev libavutil-dev \
                 libswresample-dev libusb-1.0-0-dev libv4l-dev
git clone https://github.com/Genymobile/scrcpy
cd scrcpy
./install_release.sh

note

The official scrcpy documentation notes that the apt install scrcpy package in Debian/Ubuntu repositories may be outdated. The official release package or installation script is recommended.

macOS host

Use Homebrew to install scrcpy

Run the following command in the terminal:

brew install scrcpy

If ADB is not installed on the host, run the following command:

brew install --cask android-platform-tools

Use the official release package

1. Go to scrcpy releases.
2. Download the macOS package for your host architecture, for example, scrcpy-macos-aarch64-*.tar.gz or scrcpy-macos-x86_64-*.tar.gz.
3. Extract the package and run scrcpy in the extracted directory.

Mirror the screen using scrcpy

After confirming that ADB is available, run:

scrcpy

A window showing the Android 15 graphical interface opens on the host. You can then operate RUBIK Pi 3 using the host mouse and keyboard.

Common operations:

Operation	Description
Left click	Tap the Android UI
Right click	Back
Middle click	Home
Alt + f	Toggle fullscreen

If multiple Android devices are connected, check the serial number first:

adb devices

Then start scrcpy for the specified device:

scrcpy --serial <device_serial>

Reduce latency, lower the mirrored resolution:

scrcpy --max-size 1024

Disable audio forwarding:

scrcpy --no-audio

Reduce the resolution and disable audio simultaneously:

scrcpy --max-size 1024 --no-audio

FAQ

Device Not Found

If scrcpy reports that no device is found, check ADB first:

adb devices

If the device is not listed as device, check the USB Type-C data cable, host ADB environment, and USB debugging status on the device.

Mouse or Keyboard Control Does Not Work

If the screen is visible but the mouse or keyboard cannot control the device, confirm that the device allows input event injection through ADB. Android 15 userdebug images normally support this directly. For other image variants, make sure USB debugging is enabled.

More Options

Run the following command in the terminal to view the scrcpy help information:

scrcpy --help

Alternatively, refer to the official scrcpy documentation: https://github.com/Genymobile/scrcpy.