Graustufenbild einer Hausfassade mit viel Glas
Graustufenbild einer Hausfassade mit viel Glas
Graustufenbild einer Hausfassade mit viel Glas
ddm hopt+schuler

Creative thinkers for technical innovations


Card reader

Complex applications require clever solutions. That’s why we have set up our card readers in such a modular way, that we can find a solution for any application.

Chip card reader 840-FM
High functionality on smallest space

Our chip card readers are able to combine several functions on a very small amount of space. A start-switch to turn off a NFC antenna or our ESD safety are just two functions among many.

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With our switches and encoders, we convey a high-end user experience on human-machine interface by providing a great haptic feeling and using top quality material.

2-Bit Encoder 580
Experience HMI

The intelligent 580-series with integrated touch sense function, offers a great haptic feeling. The best thing about it, is that you can scale the haptic feeling according to your demands.

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Reliable and fast processing of cards is the most important aspect of applications for our ticketing systems. For the versatile applications of public transportations all the way to toll stations – we can offer you the right concept.

Transport module 920

The card and ticket transport module 920 can collect and retain RFID as well as QR/Barcode paper tickets and cards according to ISO 14443 or issue them again after processing.

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More and more use-cases require a smart and efficient solution. That’s why we understand it to combine our products and expertise in order to offer our customers a complete system.

Complete systems

Multifunctional applications require multifunctional solutions. That’s why we design, develop and manufacture systems which are suited perfectly to the applications requirements.

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We have created space, an environment and processes with enable creative thinking and encourages creative work. Feel free to visit our future lab, in order to find out what added value we can provide you.

In numbers ddm hopt+schuler facts

Our community, sustainability and curiosity in numbers.


connected by in depth expertise and an exceptional team spirit.


combining tradition and innovation.

CO2 emissions

because we produce our own green energy.


or in other words: 200 arguments for sustainably competitive advantages for our customers.

million products

leave our company every year.

million end-test data

on a daily basis is part of our accuracy.


Do you have questions about our company or our products? Contact us and send us a short description of your request. We are looking forward to your message and will answer it as soon as possible.

Call us
+49 741 26 07-0

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We are at home in the oldest city in Baden-Württemberg, about 90 kilometres south of Stuttgart. Below you can find our contact address and directions.

Opening Hours:

Incoming goods

Monday to Thursday: 07:00 to 12:00 and 13:00 to 17:00

Friday: 07:00 to 12:00 (Delivery until 15:00)

ddm hopt+schuler GmbH & Co. KG
Königsberger Straße 12
78628 Rottweil

Call us
+49 741 26 07-0

In order to guarantee customer proximity and flexibility, we are represented internationally. Contact our sales representatives in your area.

In order to guarantee worldwide availability, we offer you a large number of sales agencies.


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