An interactive illustration of test signals. The Node-RED package runs in your own flow.
Open-source Node-RED node
Data Generator
Generate test signals for dashboards, PLC interfaces, and IoT flows.
Explore the data generatorIndustry 4.0 / Engineering & education
I’m Omid. I build open-source tools, bring smart industry into the classroom, and prepare the next generation of WorldSkills competitors.
Omid TeimooriSelected work
Generate test signals, connect an OPC UA server, or inspect a message. These are tools I build for practical Industry 4.0 work.
All projectsAn interactive illustration of test signals. The Node-RED package runs in your own flow.
Open-source Node-RED node
Generate test signals for dashboards, PLC interfaces, and IoT flows.
Explore the data generatorWorldSkills / Industry 4.0
Organising the UK competition and preparing Team UK. The latest update from each part of my WorldSkills work.
See the combined timeline ↗Teach & share
At Didactic Services, I help universities and colleges work with Industry 4.0 systems. Selected tutorials from my channel.
My YouTube channel
Local AI / 6 March 2026
Node-RED + n8n + Ollama

Dashboards / 26 February 2026
Toggle panels · Final episode

Node-RED / 19 February 2026
Dashboard interactivity · Episode 6
Practise number systems
Convert binary values, check your answers, and build confidence with the numbers used in digital systems.
Play the conversion challenge ↗Practise automation
Match buttons, sensors, lamps, and motors to their PLC connections. Use touch, keyboard, or drag and drop.
Try the PLC puzzle ↗Keep the conversation going
A question about a tool, a tutorial, or the competition? Get in touch.
Let’s talk