https://hiltsu.codeberg.page/en/Recent content on Jari HiltunenHugo -- gohugo.ioenSat, 02 May 2026 00:00:00 +0000https://hiltsu.codeberg.page/en/posts/could-ai-become-humanitys-almighty/Sat, 02 May 2026 00:00:00 +0000https://hiltsu.codeberg.page/en/posts/could-ai-become-humanitys-almighty/Will AI rule humanity? Probably not the way the films imagine. The mechanism is dependence, not compulsion — and the neural data on GPS, smartphones, and LLMs suggest the surrender is already well underway.https://hiltsu.codeberg.page/en/posts/pharmaceuticals-environmental-cost-vs-tens-2026/Fri, 01 May 2026 00:00:00 +0000https://hiltsu.codeberg.page/en/posts/pharmaceuticals-environmental-cost-vs-tens-2026/The pharmaceutical industry now has a higher carbon intensity than the automotive sector and is the dominant source of micropollutants in European waterways. At the same time, paracetamol — a first-line analgesic with a Number Needed to Treat of 3.7 — outsells effective non-pharmacological alternatives like TENS by orders of magnitude. This article examines the data behind that paradox.https://hiltsu.codeberg.page/en/posts/stevenson-shield-esp32-lorawan/Thu, 30 Apr 2026 00:00:00 +0000https://hiltsu.codeberg.page/en/posts/stevenson-shield-esp32-lorawan/This is the enclosure side of my ESP32-based LoRaWAN weather station project. The electronics, firmware (MicroPython and C++), schematics and build instructions live in the lorawan repository on Codeberg. This post focuses on the mechanical design: a fully parametric Stevenson shield designed in Fusion360, intended for FDM printing in white PETG. What is a Stevenson Shield? A Stevenson screen (or shield) is a standard meteorological housing that protects sensors from precipitation and solar radiation while allowing free airflow.https://hiltsu.codeberg.page/en/posts/going-dark-platform-stack/Wed, 29 Apr 2026 00:00:00 +0000https://hiltsu.codeberg.page/en/posts/going-dark-platform-stack/A small disappearance A while back I noticed that a number of things had quietly stopped working. My YouTube channel went silent — uploads were technically there, but views and comments dried up to a degree that wasn’t normal variance. Posts on LinkedIn that linked to my own articles got vanishingly little reach, sometimes none at all. On Thingiverse, several routine actions started bouncing off a Cloudflare challenge page that no amount of patience or different browsers could clear.https://hiltsu.codeberg.page/en/posts/lorawan-mailbox-notifier/Sat, 25 Apr 2026 00:00:00 +0000https://hiltsu.codeberg.page/en/posts/lorawan-mailbox-notifier/I built an ESP32-based device with a PIR sensor inside a mailbox that wakes from deep sleep and sends a notification via LoRaWAN.https://hiltsu.codeberg.page/en/posts/passive-radar-systems-for-voluntary-national-defense-leveraging-civilian-infrastructure-for-enhanced/Tue, 15 Jul 2025 00:00:00 +0000https://hiltsu.codeberg.page/en/posts/passive-radar-systems-for-voluntary-national-defense-leveraging-civilian-infrastructure-for-enhanced/Idea for defence.https://hiltsu.codeberg.page/en/posts/environmental-sensitivities-and-housing-health-current-understanding-treatment-and-future-monitori/Tue, 08 Jul 2025 00:00:00 +0000https://hiltsu.codeberg.page/en/posts/environmental-sensitivities-and-housing-health-current-understanding-treatment-and-future-monitori/Examination of environmental sensitivitieshttps://hiltsu.codeberg.page/en/posts/the-tenth-man-in-a-decision-making/Tue, 08 Jul 2025 00:00:00 +0000https://hiltsu.codeberg.page/en/posts/the-tenth-man-in-a-decision-making/Exploring the ‘Tenth Man’ principle from Jewish tradition and its modern applications in decision-making, including pre-mortems, red teaming, Six Thinking Hats, and reverse brainstorming.https://hiltsu.codeberg.page/en/posts/leveraging-large-language-models-for-insurance-comparison-in-finland-opportunities-challenges-and-/Fri, 04 Jul 2025 00:00:00 +0000https://hiltsu.codeberg.page/en/posts/leveraging-large-language-models-for-insurance-comparison-in-finland-opportunities-challenges-and-/How to use LLM for insurance bid comparisonshttps://hiltsu.codeberg.page/en/posts/summary-and-reflections-from-the-book-there-are-many-of-us-the-psychological-foundations-of-person/Thu, 03 Jul 2025 00:00:00 +0000https://hiltsu.codeberg.page/en/posts/summary-and-reflections-from-the-book-there-are-many-of-us-the-psychological-foundations-of-person/Report about using cameras for saccadic eye movement observation.https://hiltsu.codeberg.page/en/posts/the-power-of-leading-questions-guiding-responses-not-capturing-truth/Thu, 03 Jul 2025 00:00:00 +0000https://hiltsu.codeberg.page/en/posts/the-power-of-leading-questions-guiding-responses-not-capturing-truth/Surveys and polls can be skewed by how questions are worded.https://hiltsu.codeberg.page/en/posts/thesis-the-experts-online-project-online-interaction-handbook-for-experience-experts/Sun, 29 Jun 2025 00:00:00 +0000https://hiltsu.codeberg.page/en/posts/thesis-the-experts-online-project-online-interaction-handbook-for-experience-experts/This development-oriented Bachelor’s thesis produced an online interaction handbook for Finnish-speaking experience experts with criminal and substance abuse backgrounds, as part of the Experts Online project. Using qualitative surveys and iterative prototyping (alpha, beta, and final versions), the handbook addresses key challenges such as the digitalization and transmission of emotions, social presence, and awareness in online interaction. The development incorporated accessibility requirements, plain language, and consideration of learning difficulties prevalent among the target group. Based on feedback, experience experts rated the handbook excellent and project workers good; the final product supports low-threshold online peer support and the project’s employment and digital inclusion goals.https://hiltsu.codeberg.page/en/posts/saccadic-eye-movements-and-psychological-assessment-a-review-of-camera-based-technologies-and-applic/Sat, 28 Jun 2025 00:00:00 +0000https://hiltsu.codeberg.page/en/posts/saccadic-eye-movements-and-psychological-assessment-a-review-of-camera-based-technologies-and-applic/A research-based review of using consumer-grade cameras (smartphones, webcams, and VR/AR headsets) to measure saccadic eye movements as biomarkers of cognitive load, stress, and mental health, including feasibility, technical limitations, and application potential in psychotherapy and workplace monitoring.https://hiltsu.codeberg.page/en/posts/reimagining-fashion-a-critical-review-of-ai-and-3d-modeling-for-sustainable-development-and-human-he/Wed, 25 Jun 2025 00:00:00 +0000https://hiltsu.codeberg.page/en/posts/reimagining-fashion-a-critical-review-of-ai-and-3d-modeling-for-sustainable-development-and-human-he/Idea for clothe manufacturing.https://hiltsu.codeberg.page/en/posts/fear-pressure-and-public-health-an-ethical-review-of-behavior-change-messaging-in-western-societie/Fri, 30 May 2025 00:00:00 +0000https://hiltsu.codeberg.page/en/posts/fear-pressure-and-public-health-an-ethical-review-of-behavior-change-messaging-in-western-societie/Review of a fear in societeshttps://hiltsu.codeberg.page/en/posts/misuse-of-health-data-in-finland-prevalence-legal-context-and-trust-implications/Thu, 29 May 2025 00:00:00 +0000https://hiltsu.codeberg.page/en/posts/misuse-of-health-data-in-finland-prevalence-legal-context-and-trust-implications/Finland health data review.https://hiltsu.codeberg.page/en/posts/exploiting-human-psychology-in-tech-design-past-lessons-and-the-ai-driven-future/Wed, 28 May 2025 00:00:00 +0000https://hiltsu.codeberg.page/en/posts/exploiting-human-psychology-in-tech-design-past-lessons-and-the-ai-driven-future/AI and humanity thoughtshttps://hiltsu.codeberg.page/en/posts/opportunities-for-the-utilisation-of-health-technology/Thu, 22 May 2025 00:00:00 +0000https://hiltsu.codeberg.page/en/posts/opportunities-for-the-utilisation-of-health-technology/TENS as a pain relief device.https://hiltsu.codeberg.page/en/posts/wearable-technology-for-loneliness-detection-and-prevention-2020-2024/Thu, 22 May 2025 00:00:00 +0000https://hiltsu.codeberg.page/en/posts/wearable-technology-for-loneliness-detection-and-prevention-2020-2024/Recent studies (2020–2024) demonstrate a growing interest in using wearable and mobile technology to detect and mitigate loneliness and social isolation in older adults.https://hiltsu.codeberg.page/en/posts/water-kefir-the-ancient-probiotic-elixir-perfect-for-celebrations-and-everyday-wellness/Mon, 28 Apr 2025 00:00:00 +0000https://hiltsu.codeberg.page/en/posts/water-kefir-the-ancient-probiotic-elixir-perfect-for-celebrations-and-everyday-wellness/In the theoretical background of this thesis literature related to emotions, the feelings of social presence and awareness are key to the low-threshold activities carried out by experience experts. Online interaction with the help of information technology requires the digitalization and transfer of emotional factors through digital networks.https://hiltsu.codeberg.page/en/posts/from-hobby-chickens-to-the-iot-world-part-4/Mon, 16 Dec 2024 00:00:00 +0000https://hiltsu.codeberg.page/en/posts/from-hobby-chickens-to-the-iot-world-part-4/Design a screw‑free, magnet‑mounted 3D‑printed enclosure for BME280 sensors using Fusion 360. Learn parametric modeling, sliding fits, and component linking to monitor HVAC performance with MQTT, InfluxDB, and Grafana.https://hiltsu.codeberg.page/en/posts/from-hobby-chickens-to-the-iot-world-part-3/Tue, 26 Nov 2024 00:00:00 +0000https://hiltsu.codeberg.page/en/posts/from-hobby-chickens-to-the-iot-world-part-3/Breathe new life into old tablets as IoT dashboards. Learn how to display Grafana visualisations on discarded Android tablets, block telemetry with Pi‑hole and firewall rules, and build a sustainable smart home display for temperatures, CO₂, and district heating alerts.https://hiltsu.codeberg.page/en/posts/from-hobby-chickens-to-the-iot-world-part-2/Mon, 25 Nov 2024 00:00:00 +0000https://hiltsu.codeberg.page/en/posts/from-hobby-chickens-to-the-iot-world-part-2/Monitor HVAC performance with BME280 sensors, MQTT, InfluxDB, and Grafana. Learn how to detect anomalies like sauna heat spikes, filter clogs, and frost protection cycling. Real data from a Finnish home over one year.https://hiltsu.codeberg.page/en/posts/understanding-and-implementing-nfs-on-openwrt-and-linux-workstations/Fri, 22 Nov 2024 00:00:00 +0000https://hiltsu.codeberg.page/en/posts/understanding-and-implementing-nfs-on-openwrt-and-linux-workstations/This guide explains how to set up NFS (Network File System) on OpenWrt routers to create a lightweight NAS using an external USB drive. It covers installing OpenWrt, preparing storage, configuring NFS exports, and mounting shares from Linux workstations. The article also highlights benefits like extending router lifespan, reducing e-waste, and using static IPs or CIDR for access control.https://hiltsu.codeberg.page/en/posts/why-windows-11-feels-slower-than-linux-a-technical-exploration/Fri, 15 Nov 2024 00:00:00 +0000https://hiltsu.codeberg.page/en/posts/why-windows-11-feels-slower-than-linux-a-technical-exploration/This article explores why Windows 11 feels slower than Linux for everyday browsing, using a controlled virtualized test environment and Wireshark network analysis. Key findings show that Windows 11 generates significant background network traffic due to telemetry, cloud integration, and update services, while Linux Mint remains leaner and more responsive. The analysis also highlights differences in networking stack efficiency, system resource management, and even shutdown behavior, with Windows continuing to communicate with Microsoft servers until the very end. The conclusion suggests Linux may be a better choice for network-heavy workloads and overall speed.https://hiltsu.codeberg.page/en/posts/from-hobby-chickens-to-the-iot-world--part-1/Tue, 12 Nov 2024 00:00:00 +0000https://hiltsu.codeberg.page/en/posts/from-hobby-chickens-to-the-iot-world--part-1/How a garden snail problem led to keeping summer chickens, building a winter-proof coop, and automating the chicken door with a Raspberry Pi, 433 MHz remote control, and MQTT. The unexpected journey from psychology observations to IoT innovations.https://hiltsu.codeberg.page/en/posts/moving-a-windows-10-uefi-grub-installation-to-virtualbox-on-linux-mint-wilma/Fri, 18 Oct 2024 00:00:00 +0000https://hiltsu.codeberg.page/en/posts/moving-a-windows-10-uefi-grub-installation-to-virtualbox-on-linux-mint-wilma/Step-by-step guide to convert an existing Windows 10 UEFI/GRUB dual-boot installation into a VirtualBox VM on Linux Mint 22 (Wilma) or Ubuntu 24.04 LTS. Covers Disk2vhd, VDI conversion, EFI repair, and OEM license caveats.https://hiltsu.codeberg.page/en/posts/troubleshooting-and-repairing-a-stiga-lawnmower-how-i-saved-money-by-finding-com/Wed, 04 Sep 2024 00:00:00 +0000https://hiltsu.codeberg.page/en/posts/troubleshooting-and-repairing-a-stiga-lawnmower-how-i-saved-money-by-finding-com/A 3-year-old Stiga lawnmower with an OHV 140 (WBE140 Stage V) engine starts cold but fails to restart when warm due to a faulty ignition coil (LC1P65FA). Instead of paying €68 for the original Stiga part, the author identifies a compatible Honda GX200 ignition coil, buys a €13.97 kit from CDON (including spark plug, fuel filter, and switch), and successfully repairs the mower. The fix restores cold and hot starts, eliminates misfires, and saves €54.03.https://hiltsu.codeberg.page/en/posts/working-as-a-volunteer-at-crisis-phone-and-chat/Wed, 04 Sep 2024 00:00:00 +0000https://hiltsu.codeberg.page/en/posts/working-as-a-volunteer-at-crisis-phone-and-chat/Experiences as a volunteer on a crisis helpline and in the Sekasin chat: building interaction, encountering self-harm and suicidal clients, professional boundaries, ethical challenges, and the importance of debriefing and work supervision for volunteer well-being.https://hiltsu.codeberg.page/en/about/Mon, 01 Jan 0001 00:00:00 +0000https://hiltsu.codeberg.page/en/about/Jari Hiltunen — OH4CMA Embedded systems developer from Finland. I primarily work with ESP32 microcontrollers using MicroPython and C++, building IoT solutions over LoRaWAN networks. Beyond technology, I write about innovation, artificial intelligence, philosophy, and society. Recent Educational Background: Artificial Intelligence Fundamentals, IBM SkillBuild Bachelor of Social Services (BSS), Laurea University of Applied Sciences Python Bootcamp, StacSkills Intermediate Studies in Psychology, University of Turku Basic Studies in Psychology, University of Turku Basic Studies in Adult Education, University of Turku Machine Learning, Åbo Akademi University Data Science, Åbo Akademi University Computer Networking Techniques, University of Turku Basic Studies in Computer Science, University of Turku Basic Studies in Biology, University of Turku Leadership in Change and Learning Organization, Turku University of Applied Sciences Expert as a Manager Training, AaltoJOKO, University of Helsinki Projects My code lives on Codeberg.