Aroma timing shapes immersion. With the Moduline IV, theaters gain precise, programmable scent delivery that stays easy to control and maintain.

Scent is a powerful storytelling tool. It can shift mood, deepen immersion, and turn a 5D cinema moment into something unforgettable. However, delivering scent at the right time—and with the right intensity—requires more than a basic diffuser. It calls for accurate timing, stable airflow control, and flexible sequencing.

The GOcontroll Moduline IV offers the hardware and software foundation for a fully programmable scent delivery wall. The controller supports up to eight I/O modules, visual programming with MATLAB/Simulink, and operator-friendly Node-RED dashboards. As a result, designers can build systems that release complex scent blends at precise cues while keeping day-to-day operation simple.

The Moduline IV is a rugged embedded controller with large I/O capacity and strong processing power. This makes it well suited for multi-channel scent delivery in theaters, museums, and themed attractions.

Modular I/O for custom valve and fan arrays

The controller holds up to eight plug-in I/O modules. This allows system builders to connect:

• Individually controlled electronic valves

• Micro-fans for airflow shaping

• Scent cartridge sensors

• Temperature or airflow sensors

Because each module handles specific I/O tasks, the system can scale from small walls to large multi-panel arrays. The industrial housing and IP-rated enclosure allow stable performance even in demanding environments.

Strong processing for timed sequences

The Moduline IV uses a Quad-Core ARM Cortex-A53 processor and runs compiled MATLAB/Simulink models.
This gives it the speed to manage:

• Millisecond-accurate valve actuation

• Parallel scent channels

• Dynamic blending logic

• Variable airflow patterns

• Safety checks and failover routines

Because the logic runs in Simulink, developers can create timing curves and cue sequences using visual blocks instead of low-level code.

Reliable start-up and operation

The controller boots Simulink models in roughly 5.5 to 6 seconds.
It also reads internal measurements such as supply voltage and K15 signals.
This helps designers build predictable startup and shutdown behavior, which is helpful when shows run back-to-back.

A scent wall blends air, aroma, and timing into a controlled effect. With the Moduline IV, the system gains modular control paths that react quickly to show cues.

Multi-cartridge scent control

Each cartridge links to a valve channel. Output modules can drive these channels independently, so the controller can:

• Trigger one scent

• Blend two or more scents

• Run short pulses

• Produce long fades

• Sequence scents across a full show

Because the I/O is modular, more valves simply mean installing more output modules.

Airflow shaping with micro-fans

Fresh air or recirculated air can be pushed across the scent channels. Fan speed determines:

• Scent intensity

• Spread

• Direction

• Dissipation rate

These fans run through output modules as well, giving Simulink full control over ramps, bursts, or smooth transitions.

Sensor feedback

Input modules can collect:

• Temperature data

• Airflow feedback

• Cartridge-level switches

These signals help maintain consistent scent delivery because the control model can react to changes in conditions.

Timing is everything in 5D cinemas. Because the Moduline IV executes Simulink models directly, designers can map scent triggers to the show timeline with high precision.

How the control logic works

A typical Simulink design includes:

• State machines for cue segments

• Timing blocks tied to show duration

• Output profiles for valves and fans

• Safety logic using system signals such as supply voltage readings

• Blend curves that shape transitions between scents

The GOcontroll blockset exposes module I/O, system LEDs, K15 signals, and network nodes inside Simulink. This keeps the model clear and easy to tune.

Flexible cue editing

Because the model is visual, adjusting timing is simple. Designers can move blocks, change durations, or edit transitions. This workflow speeds up prototyping and reduces development cost.

Fast deployment

After compiling the model, it is uploaded to the controller using the GOcontroll upload server.
This step is quick, which helps teams test many cue variations during creative development.

Operators need easy tools, not engineering tools. Node-RED solves this by giving them a clean, browser-based dashboard. It comes installed on the Moduline IV by default.

Adjustable parameters without touching the logic

Using GOcontroll’s Simulink read/write nodes, a dashboard can expose:

• Scent intensity sliders

• Valve timing adjustments

• Blend presets

• Fan speed curves

• Trigger delay offsets

• Cartridge usage counters

Operators can change these values during setup or between shows. Meanwhile, the Simulink model stays protected.

Live monitoring

Node-RED can display:

• Real-time sensor values

• Output states

• Fan duty cycles

• System temperatures

• Controller health indicators

This overview helps technicians check the system before each show, reducing risk of scent misfires or uneven performance.

Built for varied venues

Because Node-RED is visual and browser-based, it works well for theme parks, museums, temporary exhibits, and custom theater setups. It also supports future cloud-based monitoring or remote service options.

The Moduline IV provides a stable base for advanced scent delivery systems. Its modular hardware fits both small and large installations. Its processor handles complex timing models. And its software tools let engineers build new effects quickly while keeping operation simple for staff.

As 5D cinemas grow more sophisticated, precise scent control becomes a key part of the experience. With the Moduline IV, creators can shape aromas with confidence, timing, and repeatability. The result is a more immersive show that feels alive from the first frame to the final breath of scent.