Archive for September, 2025
Posted by jpluimers on 2025/09/23
This was a cool post: [Wayback/Archive] 433 MHz is not dead! Using an ESP32 board with LoRa module to talk to 433 MHz sensors – CNX Software
433MHz LoRa Transceiver-based ESP32 board work with regular 433 MHz sensors found on the market. This gives end users a simple off-the-shelf solution for receiving these signals without having to use a soldering iron and making a circuit.
…
This opens many doors regarding 433 MHz sensor readings with one device, including weather stations, doors, PIR, TPMS, temperature, and BBQ sensors.
Recommended reading!
Related: [Wayback/Archive] Making your RF 433mhz sensors and devices communicate with your home automation, gateways comparison
–jeroen
Posted in Development, ESP32, Hardware, Hardware Development, IoT Internet of Things, LoRa - Long Range wireless communications network, MQ Message Queueing/Queuing, MQTT, Network-and-equipment, Power User, Software Development | Leave a Comment »
Posted by jpluimers on 2025/09/22
Sinds vorige week tot 5 december 2025 kun je weer een Covid-19 vaccinatie krijgen.
Iedereen die wil kan een afspraak maken via telefoonnummer 0800-7070 of via de eerste link hieronder.
Linkjes:
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Posted in Covid-19 / Coronavirus, Covid-19/SARS-CoV-2/Coronavirus, Health, LifeHacker, Power User | Leave a Comment »
Posted by jpluimers on 2025/09/22
Two kinds of RP-SMA dual-band WiFi antenna parts having :
- Y9MPH is an omnidirectional dipole stick antenna which most use
- 3TJ9N is a semidirectional patch/panel antenna on a wire which few people use but can be useful when you want to put the antenna into a place having better signal reception
Both are also supposed to work for Dell OptiPlex Micro models 3020/3040/3050/5020/5040/5050/7020/7040/7050 (as 5030/7030 models were never released and 3030/9030 only released as a different all-in-one PC form factor): basically the end of the Micro form factors in Dell OptiPlex Series 4 and start of Dell OptiPlex Series 5.
Links (some also containing part numbers for other related components like internal wiring and M.2 Wi-Fi cards):
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Posted in Dell Optiplex 3060/5060/7060 Micro, Hardware, Power User | Leave a Comment »
Posted by jpluimers on 2025/09/19
In a German thread, Kristian Köhntopp perfectly explained why I too always use light mode, so I put the English translations here:
- Dark mode is a strain on the eyes and useless.
- Specific: In darkness (and in dark mode) your pupils widen, the diaphragm opens. This reduces the depth of field and the eye muscles have to do more work and precision when focusing.
- Conversely, with light and a bright background you have a smaller pupil, a small aperture and more depth of field. This means that everything is automatically sharp, even if the eye has not readjusted.
The German thread:
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Posted in accessibility (a11y), Conference Topics, Conferences, Development, Event, LifeHacker, User Experience (ux) | Leave a Comment »
Posted by jpluimers on 2025/09/18

NewsGuard August 2025 One Year Progress Report: Percentage of Responses Containing False Information
This is what I have been warning for since 2020: AI LLM will end up in a downward quality spiral.
My reasoning back then, and still now is that they:
- cannot distinguish LLM generated training data from human data making the LLM worse over time
- don’t perform human curation thereby not solving the worsening
I’m not surprised by the [Wayback/Archive] August 2025 — AI False Claim Monitor – NewsGuard summary:
AI False Information Rate Nearly Doubles in One Year
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Posted in AI and ML; Artificial Intelligence & Machine Learning, Development, Generative AI, LLM, Software Development | Leave a Comment »