I Like Testing, Do You Too?
I'm testing a combo of Perplexity and Claude — Perplexity handles research, Claude gets ready sources. It saves me tokens and surfaces information Claude alone can't find.
Read more: I Like Testing, Do You Too?Przemysław Wilde | Product, business & technology
I develop technology products and the business around them. I look at technology through customer needs, product capabilities and market realities. Here, I share my perspective, try out new tools and write about what I learn.
Technology must not only work, but also reach the market.
My perspectiveMore testimonials →
Products between engineering and the market
Most of my experience comes from building automation, IoT and the electrical engineering industry. Working with engineers, installers, distributors and customers has taught me to see the same product from different perspectives. I’m interested in how technical capabilities translate into a useful solution, a clear product offering and business growth.
That curiosity also leads me to AI and projects of my own. I test tools in practice and write about my observations. What interests me most is what remains useful once the initial excitement around a new technology fades.
He has a great feel for the market and a real talent for turning a product vision into concrete solutions. He is a genuine treasury of ideas.
Work on developing an IoT product group He showed a lot of organisational knowledge and creativity, which let us carry out the plans we had smoothly.
Work on sales and training projects Przemysław is an expert in his field and, on top of that, a great enthusiast of building automation, electrical engineering and everything else he works on professionally.
Work on products and distribution in building automation Przemek is a very ambitious, thorough and responsible manager. His curiosity about the world and about new technology is a huge asset.
Work on developing the product range for automation systems
Not only writing
All toolsTools I designed
The idea, the scope and the testing are mine; the code is written with help from AI. All tools run entirely in your browser, with no login and no data sent to a server.
- Energy
Energy monitor measurement analyser
Load the measurement history from an energy monitor (for example MEW-01 or MEW-02 in Supla Cloud), analyse your usage over any date range and compare tariffs on your own data.
Open - Energy
Appliance electricity usage calculator
Work out how much power a device uses and what it costs you — with a day schedule and duty cycles.
Open - Digital hygiene
Photo metadata inspector (EXIF)
See what your photo says about you — GPS location, date, phone model — and download a clean copy with the metadata stripped. The photo never leaves your browser.
Open - Energy
Peak hours (PSE grid data)
Check which hours are worth saving electricity today and when the grid has plenty to spare. Data pulled live from the free official PSE API.
Open - Energy
Quiz: how much power does it draw?
Guess how much energy household appliances use and what really drives your bill. Ten questions, different every time — see whether standby catches you out.
Open
Recently
All postsFrom the blog
Most often I write about artificial intelligence and the tools I happen to be testing. Sometimes about what follows from that for a product.
Your AI Conversations Might Be Training Someone Else's Model
Free versions of ChatGPT, Claude, Grok and Gemini most likely ship with "improve the model for everyone" turned on by default. Here's how to switch it off.
Read more: Your AI Conversations Might Be Training Someone Else's ModelHow does Google Trends work and how to read it?
Get to know Google Trends. A free tool that shows what people around the world are searching for, when they search and where.
Read more: How does Google Trends work and how to read it?
My roundup
Technology with commentary
My personal roundup of technology, AI and smart home news, with my own commentary. Published in Polish.