7-inch Bus Control Panel: RS485/Modbus Compact Yacht & RV Smart Control Solution

Product Overview

The 7-inch bus smart control panel is a compact control terminal designed for yacht and RV conversion scenarios with limited space but full functional requirements. Built around RS485/Modbus industrial bus with standard industrial communication interfaces, it retains complete bus access, data acquisition, device control, and scene linkage capabilities in a compact 7-inch form factor — ideal for helm secondary displays, cabin control panels, and RV living area control screens.

Equipped with an ARM Cortex™-A7 dual-core processor, it can simultaneously collect dozens of device variables, supports cross-device logic and scene linkage, and runs locally offline. With the TDFH drag-and-drop design tool, users can freely add device variables, bind register addresses, and customize display styles and controls. The 7-inch size strikes the optimal balance between information display and installation space — neither too small for crowded information nor too large for precious cabin space.

I. Yacht Conversion Scenario: Compact Size, Full Functionality

In yacht conversions, the 7-inch panel is particularly suitable as a helm secondary display, independent cabin control screen, or flybridge control panel. Compared to a 10-inch screen, the 7-inch can be more flexibly embedded in instrument panels, cabin walls, and bedside positions for distributed multi-point control.

1. Helm Secondary Display: Navigation Data Backup

• Navigation data backup: As a secondary display for the main navigator, real-time speed, heading, coordinates, and voyage data — maintaining situational awareness if the main display fails
• Engine monitoring: Connects to engine ECU for RPM, water temp, oil pressure, oil temp, and runtime with automatic abnormal parameter alarms
• Auxiliary equipment: Depth sounder, rudder angle, and AIS data on one screen, reducing instrument switching
• Anchoring control: Electric windlass control with real-time chain length, one-hand operation for the helmsman

2. Independent Cabin Control: One Screen Per Cabin

• HVAC & ventilation: Cabin AC on/off, temperature, mode, fan speed; fresh air system control
• Lighting & shading: Cabin main, reading, and ambient lights with dimming/color; electric curtain control
• AV entertainment: Cabin background music volume and source switching with sleep scene auto-off
• Security status: Cabin smoke, bilge, and door access status with pop-up alarms

3. Flybridge/Deck Control: Outdoor-Specific

• Deck equipment: Deck lights, awning, gangway, and transom one-touch control
• Environment monitoring: Outdoor temperature, wind speed, and barometric pressure for outdoor activities
• Entertainment: Deck audio control and outdoor TV switching with leisure scene presets
• Security monitoring: Deck camera feed viewing with real-time perimeter awareness

4. Energy & Power Distribution Monitoring

• Battery management: Battery voltage, current, and capacity monitoring; solar charging status
• Power switching: Shore power connect/disconnect status; generator runtime parameter monitoring
• Distribution management: Key circuit status display, overload alarms, and remote on/off control

II. RV Conversion Scenario: Compact & Flexible, Multi-Point Deployment

In RV conversions, the 7-inch panel works well as a living area main control, bedside secondary screen, or exterior control panel. Its compact size fits easily into cabinets, bedside panels, and exterior walls for a vehicle-wide distributed control network.

1. Living Area Main Control: Utilities & Body on One Screen

• Tank levels: Fresh, gray, and black water tank real-time levels with high/low auto-alarms
• Pump control: Fresh and waste water pump on/off with pressure adjustment; winter anti-freeze drain
• Power management: House and starter battery V/I monitoring; solar charge/discharge visualization
• Power switching: Shore/inverter auto-switch status; generator start/stop with parameter monitoring
• Heating & hot water: Parking heater on/off, temperature, status; water heater temp control and scheduling

2. Body Mechanism Control: One-Touch Operation

• Lifting roof & jacks: Electric lifting roof control with height display; electric jacks with auto-leveling via level sensor
• Awning & steps: Electric awning extend/retract and step deploy/stow — all one-touch
• HVAC environment: Roof/parking AC temperature, mode, fan speed; fresh air ventilation
• Doors & storage: Electric skylight and curtain control; cabin door lock status and control

3. Bedside Secondary Screen: Pre-Sleep One-Touch Control

• Lighting control: Bedroom main, reading, and ambient light dimming/color; one-touch all-lights-off
• Sleep scene: One-touch sleep mode — lights fade, AC adjusts, curtains close, doors lock
• Security check: Pre-sleep vehicle-wide door/window, tank, and battery status review
• Wake scene: Scheduled wake mode — lights fade in, curtains open, heater starts, water preheats

4. Security & Driving Assistance

• Safety alarms: Smoke, gas leak, CO, and anti-theft alarms with synchronized screen alerts
• Driving assistance: Reverse and blind spot camera feeds; TPMS data display
• Environment data: External temperature, altitude, and humidity for trip reference

III. Core Advantages of 7-inch Compact Design

1. Compact Size, Flexible Installation

The 7-inch size reduces installation area by ~40% compared to 10-inch, fitting into instrument panels, cabin walls, bedside, and cabinets. Standard cutout dimensions support both flush and wall-mount installation. Industrial-grade panel with dust and water resistance for marine and RV environments.

2. Standard Protocol, Third-Party Compatible

Standard RS485 with Modbus RTU — any standard-bus sensor, controller, or actuator connects without custom development. Optional RS232, RJ45 Ethernet, and WiFi cover both wired and wireless devices.

3. Free Configuration, On-Demand Layout

With TDFH drag-and-drop tool, the 7-inch screen layout is fully customizable — navigation dashboard style or RV control panel style, both achievable quickly.

4. Distributed Deployment, Multi-Screen Linkage

Multiple 7-inch panels network via RS485 bus for distributed control across helm, cabins, flybridge, and bedside. Data syncs in real time across all screens with configurable per-screen permissions.

5. Cross-System Scene Linkage

"Yacht Boarding Mode": deck lights fade + cabin AC starts + navigation powers on. "RV Parking Mode": jacks level + awning extends + lights on + pump starts — true one-touch state switching.

IV. Technical Specifications

V. Typical Conversion Solutions

• Yacht helm conversion: 7-inch embedded in dashboard as navigation secondary and device control
• Yacht cabin upgrade: One 7-inch per cabin for independent HVAC, lighting, AV control
• RV living area: 7-inch embedded in cabinet door as utilities/body main control
• RV bedside control: Bedside 7-inch for pre-sleep and wake scene management
• Distributed multi-screen: Multiple 7-inch panels on bus for vehicle-wide synchronized control

The 7-inch bus control panel delivers complete bus control capability in a compact size, freeing yacht and RV smart conversions from space constraints — whether at the helm, in the cabin, or at the bedside, one screen controls it all.