@Florisera

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Engineer | Tech Blogger | Sharing practical tips on electronics, spintronics, and technology. Exploring new frontiers, one post at a time.
Websitehttps://www.florisera.com

Made a simple live bus departure display with an ESP32, an I2C LCD and real time OVapi data. It shows the next arrivals on a small screen and refreshes automatically every minute. Setup uses WiFiManager so you can pick WiFi and your stop code via a captive portal. Full code and wiring on GitHub https://github.com/Florius87/BusTrackingWithESP32. Ask me if you want help getting yours running.

https://florisera.com/live-bus-tracker-with-esp32/

I'm a solo author so I built a small automation to generate and publish social posts for each new article with one click. It crawls your sitemap, uses a CSV tracker to manage drafts, and creates platform ready posts with a language model while keeping an approval step. Works with X and LinkedIn. Repo and install guide on GitHub. I will be minimally interactive here so please contact me via my website for discussions.

https://florisera.com/automate-your-social-media/

I explored how search engines look for intent rather than keyword matches. By using Google Autocomplete with an A to Z expansion and scraping People Also Ask with Selenium you can collect thousands of real user questions. Turn unique questions into sentence embeddings, cluster and visualize topic groups to reveal content opportunities. This helps you create content that answers what people actually ask.

https://florisera.com/nlp-powered-seo-using-machine-learning-to-understand-search-intent/

Rotary encoders convert rotation into digital pulses so a controller can track how far and which way something turned. Incremental encoders provide quadrature pulses for relative movement and are simple and low cost. Absolute encoders give a unique code for each position and keep position across power cycles. Pick incremental for menus and relative control. Pick absolute when you need true position immediately.

https://florisera.com/getting-started-with-rotary-encoders/

I turned a PCB into a durable business card with NFC and QR. The article explains NFC basics, my choice of the NXP NT3H2111W0FTT chip with energy harvesting and non volatile storage, antenna modeling and resonance calculations, and practical tuning tips including spare capacitor slots on the PCB. It is a hands on technical guide to designing a reliable PCB NFC card.

https://florisera.com/creating-a-pcb-business-card-with-nfc-and-qr/

AC voltage and current oscillate but instantaneous power p(t)=v(t)i(t) follows sin squared so average power is positive. RMS voltage gives the DC heating equivalent so 230 V RMS corresponds to about 325 V peak. Electrons only jiggle slowly while electromagnetic fields carry the energy to your lamp.

https://florisera.com/understanding-energy-transfer-in-dc-and-ac-circuits/

I automated internal links to boost SEO and fix broken links after I changed my URL structure. I crawled my sitemap, used BeautifulSoup and HEAD requests to log 404s, then built a recommender that embeds article text with SentenceTransformers to suggest related posts. Saves time and improves discovery and rankings. Code on my GitHub.

https://florisera.com/automating-internal-links-seo/

The Cosmic Microwave Background is the faint 2.725 K glow from the early universe. Tiny temperature variations trace primordial density differences that later formed galaxies. Satellites COBE, WMAP and Planck scanned the entire celestial sphere and combined measurements into 2D maps using projections like Mollweide. Those maps let us read the initial conditions of cosmic structure.
Writing a dissertation appendix? This guide explains what to include (raw data, questionnaires, code, sample calculations), how to organize and label items, and gives an example layout and formatting tips to keep appendices clear and reproducible. Handy for final drafts and exam prep: https://florisera.com/dissertation-appendix-tips-and-example/
Ever wondered how a full‑sky map of the oldest light is made? The CMB surrounds us and tiny temperature ripples encode the early universe. Satellites like COBE, WMAP and Planck scanned the sky and stitched observations into 2D maps without losing global context. A clear primer: https://florisera.com/mapping-the-cosmic-microwave-background/
Mapping the Cosmic Microwave Background - Florisera

Understand the Cosmic Microwave Background and how satellites map the full sky using Mollweide projections

Florisera