Engineering firm for sustainable software development, IIoT, automation and retrofit of machines and systems

slowtec GmbH

Bad Boll, DENew on Amplifa

GmbHLegal form

HRB 750886Commercial register entry

Bad BollLocation

About slowtec

slowtec GmbH, based in Bad Boll (Baden-Württemberg), is an engineering firm for sustainable software development. The company develops custom software solutions for industrial applications: web applications, databases and backends, automation software and real-time systems, measurement, control and regulation technology (MSR), as well as hardware-related applications with sensor integration. Core services include a modular IIoT toolkit for data acquisition, operation and alarming with interfaces such as Modbus, EtherCAT, MQTT and REST on embedded Linux, as well as retrofit – the digitalization of proven existing machines and systems with maintainable control software. As its production language, slowtec mainly uses Rust, complemented by WebAssembly, Linux and open standards; the company develops and maintains its own open-source libraries. Customers come from renewable energies, water and wastewater management, mechanical and plant engineering, laboratory automation and image processing, including smirro, sbp sonne, SolarSpring and Festo Didactic. All services are provided from the Badwasen 12 location in Bad Boll and implemented in short development cycles together with the customers.

Site: Bad Boll
Processes: Custom software development, Software architecture consulting, IIoT toolkit (data acquisition, operation, alarming; Modbus, EtherCAT, MQTT, REST), Retrofit – digitalization & IIoT for existing systems and machines, Automation software and real-time systems / MSR, Web applications, databases and backends, Hardware-related applications, sensor technology, Custom software development (full stack: web applications, databases, backend)
Materials: Rust programming language, Embedded Linux / NixOS, WebAssembly, Modbus TCP, EtherCAT, MQTT and REST
Industries: Renewable Energies, Water/Wastewater Management, Industrial Automation / Mechanical and Plant Engineering, Laboratory Automation, Building Technology (Greening/Irrigation), Image Processing

01
Requirements analysis with the customer
02
Concept or target architecture
03
Software development in short cycles
04
Hardware/sensor integration and commissioning
05
Data recording, visualization, remote maintenance
06
Support and further development

Technologies & Processes

Rust

Rust programming language

Production language for real-time systems, embedded software, backends and WebAssembly applications.

Linux

Embedded Linux / NixOS

Operating system for hardware-related control systems on industrial PCs and small computers.

WASM

WebAssembly

Execution of Rust applications in the browser, e.g. for local data processing without the cloud.

Modbus

Modbus TCP

Open fieldbus for connecting sensors, actuators and industrial I/O modules.

EtherCAT

Automation fieldbus for real-time data recording and controller configuration.

MQTT/REST

MQTT and REST

Open interfaces for IIoT data flows, remote maintenance and app connectivity.

Locations

Bad Boll

Engineering firm, software development and company headquarters

Materials: Rust, Linux, WebAssembly, Modbus, EtherCAT, MQTT, REST

Embedded Linux development
Industrial I/O modules (including Weidmüller)
Control modules in the control cabinet

Project Examples & Applications

**IIoT & Automation Parabolic Trough Power Plant**Control software · Renewable Energies

**Automation Membrane Distillation**MSR/IIoT · Water Treatment

**Control Software Educational Electrolysis Laboratories**Real-time control · Laboratory Automation

**KlicK-Tool Climate Balance for Wastewater Treatment Plants**Web tool (Rust) · Water Management

**KA4H2-Tool Hydrogen Potential Analysis**Web tool (Rust) · Water Management

**Architecture of Image Processing Software**Software architecture · Industrial Cameras

**Automation and MSR Software**Control technology · Mechanical and Plant Engineering

Inside the production

Industries

Renewable EnergiesWater/Wastewater ManagementIndustrial Automation / Mechanical and Plant EngineeringLaboratory AutomationBuilding Technology (Greening/Irrigation)Image Processing

Processes & technical limits

Processes	Tolerance	Max. part	Weight	Lot size	Materials
Custom software developmentEngineering	–	–	–	–	–
Software architecture consultingEngineering	–	–	–	–	–
IIoT toolkit (data acquisition, operation, alarming; Modbus, EtherCAT, MQTT, REST)Engineering	–	–	–	–	–
Retrofit – digitalization & IIoT for existing systems and machinesEngineering	–	–	–	–	–
Automation software and real-time systems / MSREngineering	–	–	–	–	–
Web applications, databases and backendsEngineering	–	–	–	–	–
Hardware-related applications, sensor technologyEngineering	–	–	–	–	–

Additional services

Custom software development (full stack: web applications, databases, backend)Software architecture consulting, analysis, target architecture, trainingIIoT toolkit (Modbus, EtherCAT, MQTT, REST; embedded Linux, local data storage)Retrofit / digitalization of existing machines and systemsAutomation software, real-time systems, MSRHardware-related software, sensor integrationRemote maintenance and data recording/visualizationOpen-source development (Rust, Linux, open standards)

Reference customers

smirro GmbHsbp sonne GmbHSolarSpring GmbHFesto Didactic SEUmwelttechnik BW GmbH (client for KlicK-Tool)DWA (operator of KlicK-Tool)Ministry of the Environment, Climate Protection and the Energy Sector Baden-Württemberg (KA4H2)Manufacturers of industrial cameras (not named)

History

2021
Joined the Network for Social Entrepreneurship (SEND)
2023
Participation in the AI-assisted Knowledge Search project (2023–2024, completed)