Anton Graichen-Hartl · Software developer & architect · Raasdorf near Vienna
I build ABAP software for companies and the technology behind interactive trade fair stands, showrooms and stages. Freelancing since 2011.
Tip for developers: the / key opens a .
Services
S/4HANA, ERP (SD, MM, PP, QM), CRM and BI. From reports and interfaces to RAP backends with a Fiori front end, including S/4HANA migration.
Agentic software development with Claude Code and GitHub Copilot, automation and local language models. That is also how my open source projects come about.
Control software, content systems and data integration for Ventuz scenes, media walls and game engines.
Apps, sensors and prototypes when a project connects several worlds.
Projects
Open source card for Home Assistant that shows the power flow from PV, battery and grid through the house, floors and rooms down to individual consumers. Installable via HACS.
Native Android app for Home Assistant. Admins share devices with each person individually, and everyone arranges them in their own houses, floors and rooms. With HAAC Bridge as its counterpart in Home Assistant.
Android app controlling the Ventuz installation in the showroom in Dubai.
CMS controlling an LED media wall via Ventuz, and a WPF app for Surface tablets that captures signatures.
For the World Government Summit in Dubai: an Android app for photos, visitor data and OSC messages, plus the “Ministry Game” with an SQL database, Ventuz scripts and a WPF interface.
A complete electric car as a trade fair stand. CAN bus middleware, NFC badge reader, fingerprint, Leap Motion and LIDAR integration. With Stereolize.
Ultra-wideband indoor tracking based on BeSpoon that follows people on a stage.
WPF application controlling the Ventuz content.
Setup, teardown and support of the CES exhibits in New York.
Corning’s vision “A Day Made of Glass” as a trade fair stand in Las Vegas: interactive wall, shop window, smart fridge, table and car console. Content system on Neo4j, RFID, face recognition and Ventuz controls. With Stereolize.
WPF application controlling the Ventuz content.
An interactive cube of Gorilla Glass as an information display, with a hotel information system and an SAP HANA energy demo. CMS concept and sync, SAP backend, SAPUI5 web app and the bridge from Ventuz to SAP. With Stereolize.
Bank branch of the future in Albany, NY: a 164″ multitouch wall and an 84″ 4K table. CMS sync software and control center.
C# control for the Ventuz presentation on the central LED wall of a rotating live stage.
Kinect tracking and Facebook integration for the Ventuz installation on the BMW stand. Winner of the Red Dot Communication Design Award and the German Design Award (Special Mention).
WPF application controlling the Ventuz installation in the shop window.
Ventuz presentations for CubeServ’s customer talks with Hapimag and Migros in Mannheim. Live demos from notebook and iPad ran straight into the animations via screen capture.
Master data maintenance directly in SAP BW for business users: web interface, controlled by customizing, with search helps and mass changes. A CubeServ product.
About
I started out as a toolmaker in 1995. Today I build software that runs in corporations and lights up trade fair stands.
From CRM presales and the SAP department of Mobilkom Austria I moved into SAP consulting at IDS Scheer, Software AG and CSC Austria. Since going freelance in 2011, Ventuz and C# have joined ABAP in my toolkit.
Contact · on my own or with Stereolize and zpartner