Screen Mirroring (Overview)
🖥️ Screen Mirroring
The Screen Mirroring page allows you to view and interact with multiple Android devices in real time directly inside CellHasher Control. This feature uses Scrcpy for live display and input control and is optimized for cluster operations — making it ideal for managing, debugging, or showcasing multiple devices at once.
⚙️ Overview
From this page, you can:
Mirror one or many devices simultaneously
Interact live using tap, swipe, scroll, or type actions
Adjust frame rate (FPS) and bitrate (Mbps) for performance or clarity
Manage individual or grouped mirrors with quick start/stop controls
🧭 Interface Overview
1. Mirror Mode Selection
At the top of the page, choose between:
Single Mode: View and control one device at a time
Multi Mode: Mirror and interact with multiple devices simultaneously (GPU recommended)
Tip: Multi Mode is GPU-accelerated and designed for parallel screen rendering. A dedicated
3. Settings Controls
Fine-tune your stream for quality or performance:
Frame Rate (FPS): Adjust smoothness (default 15 FPS)
Video Bitrate (Mbps): Adjust video clarity (default 1.0 Mbps)
🎚️ These settings apply only to new mirror sessions. Restart mirrors to apply changes.
4. Device Manager
The top list shows all connected devices, including:
Green cards: Currently mirrored devices (Active)
Blue cards: Available but inactive devices
“+” button: Start mirroring
“X” button: Stop mirroring for that device
This makes it easy to start, stop, or organize multiple devices quickly.
5. Mirroring View
Below, you’ll see each mirrored device in real time. You can:
Interact with the screen (tap, swipe, pinch, type)
Resize or rearrange mirrored windows
Detach mirrors into a new window using Detach for multi-monitor setups
🪄 Upcoming Enhancements
The Screen Mirroring system is actively evolving. Future updates will include:
Group Control Gestures — Control multiple devices with a single touch or swipe.
Tap Broadcasting — Synchronize touches from one device to many.
Automated App Launch — Start identical apps across all mirrors at once.
GPU-Optimized Rendering — Seamless 60 FPS support for large clusters.
💡 Recommended GPU Setup
CellHasher is optimized for both integrated and dedicated GPUs, but performance scales with hardware.
Device Count
Recommended GPU
Expected Performance
1–4 devices
Integrated GPU (Intel Iris / AMD Vega)
Smooth operation at 15–30 FPS
5–10 devices
GTX 1050 / GTX 1060
Stable multi-display performance
10–20 devices
RTX 2060 or greater (recommended)
Excellent performance for large clusters
20+ devices
RTX 3060 / 4070 / RX 6800+
Ideal for enterprise or mining cluster visualization
Many users successfully mirror up to 20 devices using an RTX 2060 or higher, and some report stable performance even on GTX 1050s when using moderate FPS/bitrate settings.
✅ How to Mirror Devices
Connect your devices (via USB, Ethernet, or Wireless ADB).
Open Screen Mirroring in CellHasher Control.
Choose Multi Mode for multiple devices.
Select the devices you want to mirror.
Adjust FPS and Bitrate if needed.
Click Start Mirror.
Interact live on-screen — all actions are reflected instantly.
⚠️ Performance & Stability
Important: Each active mirror consumes CPU and GPU power. If you experience lag:
Lower the FPS (10–15 recommended)
Reduce Bitrate (0.8–1.0 Mbps)
Limit the number of simultaneous mirrors
🧰 Troubleshooting
Issue
Possible Cause
Fix
Black screen / no feed
Incorrect Scrcpy path
Check Settings → System Paths
Lag / Stutter
High FPS or low GPU resources
Reduce FPS/Bitrate
No touch response
Device not ADB-authorized
Reauthorize in Developer Options
Mirror stops randomly
ADB disconnect or unstable TCP link
Check USB cable or LAN connection
🧠 Summary
Feature
Purpose
Single / Multi Mode
Switch between single or multi-device view
GPU Acceleration
Ensures smooth rendering and lower latency
Real-Time Input
Full control: tap, type, swipe
Frame Rate / Bitrate Controls
Balance speed and visual quality
Detach Mode
Move mirrors to new windows
Group Control (coming soon)
Multi-device gestures and synchronized control
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