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Multimedia console


Explaining the GETT.PROJECTS modular principle clearly using a customer project for a company known as “We prefer to remain anonymous”* (abbreviated to ‘WPRA’).

*A side effect of working as an OEM service company is that our customers often enjoy special (project) protection and we only rarely obtain approval to use their name for marketing purposes. The abbreviation WPRA is a product of our imagination and stands for “We prefer to remain anonymous.”

Marcel Vettermann
Marcel Vettermann
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Customer: WPRA*

Product type: Multimedia console

Product idea

The multimedia panel is designed to be a contemporary, smart and optically appealing operating panel consisting of six keys, an NFC interface and a display screen – and have a modular design. It is not only supposed to process keystrokes and display content, but also recognize particular installation configurations and emit switching signals. It should also be possible to introduce the complete menu navigation and control and processing logics. 


Mechanical and apparatus engineering | The food industry & catering

The WPRA* customer operates in the food industry; the product features make the console suitable for all design-oriented environments like points of sale or the furniture industry.

The challenge

Innovative, touchless input technology was the preferred option with an optical button because the Covid-19 pandemic took place during the course of the project. 

Project building blocks

Consultation, product development, quality checks and production.

Project data at a glance
  • Using innovative, touchless, optical operating elements with ring illumination
    Switching gap: 1cm
  • Colored graphical display: 320×240, 2.8″
  • 3mm toughened glass at the front with a rear design using the screen printing process
  • A rear assembly frame to accommodate the electronic components
  • The electronic components can be modularly combined and exchanged
  • Glass glued to the assembly frame
  • NFC interface
  • 2 x RS232 interfaces
  • 230V power supply 
  • 4 potential-free switch outputs


1st customer visit

Getting to know the requested application and the general conditions

  • Analyzing the previous model at the customer’s premises
  • Analyzing the requirements
  • Drawing up several technical concepts to present to the customer (including those based on the following technologies: capacitive operating technology, optical operating technology, membrane technology)
2nd customer visit

Discussing the concepts, presenting the advantages and disadvantages of each, providing a price indication

  • The customer’s decision in favor of one concept, defining further requirements
  • The concept needing to be introduced:
  • A glass operating panel with illuminated optical buttons and a display for visualization purposes
  • To be inserted as a module, depending on particular adjustment options in special configurations
  • Specifying particular graphical symbols for the display
  • Detailing the final concept, drawing up the specifications sheet
3rd customer visit

Presenting the final concept, including a binding quotation, signing the specifications sheet.

  • Handing over the project to GETT.LAB for development
Multimedia console
Bargeldloses Bezahlsystem


Mechanical construction work
  • Glass, frame, assembly and mounting work, additional parts
  • Tools used: SolidWorks, 3D printing for prototyping purposes
  • Drawing up the print layout for the glass
  • Tools used: CorelDraw, digital printing on glass for prototyping purposes
Hardware development
  • Preparing the circuit layout, routing and commissioning work for the power supply unit, circuit board for keys, adapter
  • Tools used: AltiumDesigner, extensive laboratory equipment for prototyping and tests
Firmware development
  • Evaluating the keys, interfaces, display content, controlling the output depending on particular input parameters
  • Tools used: C-Compiler for STM32
Testing concept
  • Defining the test parameters and extent of testing for the semi-finished products and the final product, defining the key calibration
  • Tools used: a calibration tool


What was tested: the adhesion of the color to the glass, the durability of the color, the quality of the printed image, the durability of the bonding, a long-term test for the electronics, climatic tests

Tools used: refrigerator, climatic shock testing cabinet, spectral photometer, cross-cut test in line with DIN EN ISO 16276-2

Multimedia console
Multimedia console


CNC milling shop
  • Manufacturing the retaining frame from one aluminum section
Printing shop

Printing the glass front using the screen printing process.


Gluing the frame glass, completing the electronic components (diffusers, light blockers), inserting the electronic components

  • Final test of functions and optical quality
  • Tools used: a calibration tool, various types of measuring equipment

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