The SONOFF NSPanel Pro (Models: NSPanelP-US / NSPanelP-EU) is a dedicated wall-mounted smart controller built around an Android-based compute board and a capacitive multi-touch display. Unlike basic button-based wall switches, the NSPanel Pro serves as an in-wall smart home control panel and local Zigbee 3.0 coordinator.
1. Silicon & Display Architecture
Fig 1. Official SONOFF NSPanel Pro wall-mounted 3.95-inch multi-touch controller hardware.
The NSPanel Pro hardware is built upon a quad-core ARM processor capable of running modern embedded user interfaces:
| Component | Specification | Architectural Role |
|---|---|---|
| SoC / CPU | Rockchip PX30 (Quad-core ARM Cortex-A35 @ 1.5GHz) | Embedded compute engine running a stripped-down Android 8.1 OS and UI runtime. |
| Display | 3.95-inch TFT LCD, 480×480 resolution, capacitive multi-touch | Crisp square display suitable for room dashboard cards, lighting dimmers, and thermostat controls. |
| Memory & Storage | 2GB DDR3 RAM, 8GB eMMC Flash | Provides sufficient memory headroom for dashboard rendering and local app execution. |
| Zigbee Radio | Silicon Labs EFR32MG21 (Zigbee 3.0 IEEE 802.15.4) | Acts as a local Zigbee coordinator for connecting sensors, switches, and plugs without external hubs. |
| Wi-Fi & Bluetooth | 802.11 b/g/n (2.4GHz) & Bluetooth 4.2 BLE | Connects to local LAN for dashboard sync, camera RTSP streaming, and Bluetooth device discovery. |
| Audio & Sensors | Built-in 1W Speaker, MEMS Microphone, Ambient Light Sensor (ALS) | Supports two-way intercom audio, door chime notifications, and automatic screen brightness dimming. |
2. Electrical Installation & Physical Considerations
The NSPanel Pro is designed to replace standard in-wall light switches. Key electrical and physical requirements include:
- Neutral Wire Required: The unit requires a continuous AC power supply (100–240V AC 50/60Hz) with both Line (Hot) and Neutral connections. It cannot function on switch loops lacking a neutral wire.
- No Physical Relay Outputs: Unlike the standard (non-Pro) NSPanel which includes two 10A mechanical relays, the NSPanel Pro has zero built-in relays. It is a pure control panel that sends digital commands via Wi-Fi/Zigbee to smart relays, dimmers, or smart bulbs.
- Form Factors: Available in 86×86mm (EU/UK square standard) and 120×74mm (US rectangular standard) junction box configurations.
3. Operating Software: eWeLink Firmware vs Home Assistant Sideloading
The NSPanel Pro supports two primary software deployment paths:
- Stock eWeLink OS: Out of the box, the unit boots into ITEAD’s eWeLink UI. It supports local device control, camera streaming (eWeLink Camera / RTSP bridge), Zigbee device management, and multi-panel intercom functionality.
- Home Assistant Sideloading (Android Companion / Fully Kiosk): Because the hardware runs Android with an unlocked bootloader accessible via ADB (Android Debug Bridge), the community extensively uses NSPanel Pro as a dedicated in-wall Home Assistant dashboard. Using tools like NSPanel Pro Tools or ADB sideloading, users install the Home Assistant Android Companion App or Fully Kiosk Browser to render native Lovelace dashboards directly on the wall.
4. Summary Assessment
Hardware Verdict
The SONOFF NSPanel Pro is one of the most versatile in-wall touch panels available. Whether used with native eWeLink firmware as a Zigbee hub or sideloaded with Home Assistant for dedicated Lovelace wall control, its quad-core PX30 SoC, high-resolution 480×480 touch display, and EFR32MG21 radio deliver exceptional value in modern smart homes.
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