CoSy-Tec GmbH
System Integration
Event Support
Digital Signage
Engineering
cosy-apps
Products

Spaces,that move.Technology,that connects.

Explore System Integration →

/Areas of expertise

Areas that reinforce
each other.

Select an area to dive deeper into technical specifications and system solutions.

SYSTEM-INTEGRATIONEVENT-SUPPORTDIGITAL-SIGNAGEENGINEERINGCOSY-APPSPRODUKTE

/What defines CoSy-Tec

Connected. Intelligent. Visible. Personal.

Connected

Everything speaks to each other

Crestron, ArtNet/sACN, Dante and Modbus: all subsystems communicate via a consistent protocol backbone. No isolated solutions — one coherent media architecture that scales.

CrestronArtNet/sACNModbusIP-Control

Intelligent

AI-assisted & proactive

cosy-sense, cosy-data, cosy-plan — platforms that analyse operational data, recognise behavioural patterns and act proactively. Technology that thinks ahead before the problem becomes visible.

cosy-sensecosy-datacosy-planAI

Visible

Information, clearly communicated

LED walls in hall format, E-Ink screens outdoors, high-resolution info displays in detail — content is distributed precisely where it has impact.

LED-WallE-InkDigital Signage4K UHD

Personal

On-site when it counts

Event support, direct systems consulting, reliable after-sales service. CoSy-Tec is not an anonymous supplier — but a technology partner from Frauenfeld, for all of Switzerland.

Event-SupportConsultingServiceFrauenfeld
David Schmucki, founder CoSy-Tec GmbH

/David Schmucki · Founder

Founded on decades of lived practice. Driven by technological rigour.

CoSy-Tec was founded in 2024 not from a business idea, but from a necessity: David Schmucki — qualified church musician, HF electrical engineer and AV systems integrator since 2012 — knew that the industry needs solutions measured against operational reality. Not against a brochure.

Whether Dante routing in a cathedral, truss planning for a large event or developing a control unit in our own lab: CoSy-Tec works at signal level — with the ear of a musician, the precision of an engineer and the response speed of a systems integrator.

More about CoSy-Tec →
/35+
Years as Musician
/20+
Years AV & Sound
/3
Patents
/Since 2012
System Integrations

Music & Acoustics

Qualified church musician, organist and pianist for over 35 years. The acoustical and musical ear for spaces forms the basis of every acoustic system planning and calibration.

AV & Audio Engineering

Over 20 years of professional audio and event technology — from church installations to high-end conference rooms and large events with line-array systems and redundant network infrastructure.

Engineering & Innovation

HF electrical engineer, specialising in automation. 3 patents. DALI specialist and co-developer of Tunable White. Active as a technical speaker across Europe.

System Integration

AV systems integration since 2012 — churches, hotels, businesses, conference centres. Protocol expertise in Crestron, Dante, KNX and ArtNet/sACN.

Our platform

cosy-one — one interface. Everything under control.

cosy-one bundles light, sound, bells, climate and displays into one interface that anyone can operate — from the verger to the front desk. The technology behind it runs securely on-site with you.

Discover cosy-one →
cosy-one platform touch panel
On-Premise Hardware

cosy-hub

Local Raspberry Pi-based controller that runs entirely on-premise. All modules are executed directly on the cosy-hub — independent of the cloud.

  • —GPIO, Modbus RTU/TCP and REST — all in one device
  • —No cloud dependency for operation, full data control
  • —Modular system — license only what is needed
cosy-hub Details →
Cloud-PlattformLIVE

cosy-connect

Central browser dashboard for all installed cosy-hub units. Remote control, monitoring, firmware updates and user management — secure, without VPN.

  • —Real-time status of all hubs — accessible from anywhere
  • —Multi-user & role concept (Admin / Technician / Operator)
  • —Roll out firmware updates centrally without on-site visits
cosy-connect Details →

cosy-hub Modules — licensable as needed

cosy-planlive

Room & Scheduling

Plan the event — the technology sets itself up. One calendar entry is enough: light, sound and climate switch correctly on their own.

License on request

cosy-belllive

Bell Control & Schedule

Your bells ring at the right moment and fall silent when the church year calls for it — fully automatically, without anyone having to remember. And whenever something should be different, a single click lets you ring or pause them.

License on request

cosy-senselive

Environmental Sensors

The room senses what it needs — and responds by itself. Heating and ventilation follow real occupancy instead of a timer.

License on request

cosy-databeta

Data Logging & Analytics

Understand what your buildings really need — clear insights instead of a graveyard of numbers, with a warning before things go off track.

License on request

cosy-shellylive

Shelly Integration

Your Shelly devices — finally controlled in one place. Sockets, light and blinds included, without an extra app or foreign cloud.

License on request

cosy-inkpreview

Digital Signage & E-Ink

Up-to-date displays throughout the building — centrally managed, current everywhere, power-saving E-Ink.

In development — coming soon

cosy-vimapreview

Visual Media & Routing

Every image on the right screen — at the push of a button. Pick source, pick target, done — no plugging cables, no tech room.

In development — coming soon

cosy-streampreview

Livestream & Recording

Service live — with one button. Stream to YouTube or Vimeo without a laptop or technical knowledge, archived automatically.

In development — coming soon

Licence model individually configurable — license only the modules that are actually needed.

Request licence →

/Beyond cosy-one

cosy-one is one part of what we do.

Long before cosy-one, CoSy-Tec was planning and realising complete AV solutions — from acoustics, lighting and media technology to system integration and our own engineering. The references that follow come from across all of these areas, not from the platform alone.

System IntegrationEvent SupportDigital SignageEngineeringcosy-one

/Selected References

Projects that speak for themselves.

Street Parade Zürich — Main Stage LED-Wall
Event-Support

Street Parade Zürich

LED Wall Technology · Main Stage Sechseläutenplatz

Novotel Konferenzanlage
System-Integration

Novotel Konferenzanlage

Full Integration · Crestron Control · Network Technology

Swiss Music Awards Bossard Arena Zug
Event-Support

Swiss Music Awards

Bossard Arena Zug · LED Wall Technology

/Ready for your next project?

CoSy-Tec GmbH

Zürcherstrasse 287, 8500 Frauenfeld
info@cosy-tec.ch
+41 52 511 05 35

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