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blog.jokielowie.com

Atari ST/STE/Mega ST/STE – connecting to a VGA monitor in color mode 19 March 2023
The Atari ST/STE/Mega ST/STE computers had dedicated monitors to support the graphics modes that were implemented by the engineers who left Commodore with Jack Tramiel in 1984: mono – black and white – 640×400 resolution, 35KHz horizontal frequency, 71Hz vertical frequency – which is available on most VGA monitors color – standard 16 colors from […]
Atari ST / STE: hardware mod gives perfect HDMI picture thanks to the RGB2HDMI and Raspberry Pi Zero 16 June 2022
RGB2HDMI for Atari ST/STE is a great project to add modern video to an old home computer. How old? Atari ST is almost 40 years old (today: 37), based on a 16 /32 bit MC68000 processor with 8MHz clock and a maximum of whole 4MB RAM. Nowadays, almost every new micro-controller is much faster and […]
Raspberry Pi Zero – updating the gate opener with water meter OCR 7 January 2020
Introduction My Raspberry Pi 1B+ has been opening garage and letting me know of the conditions for work nearly 4 years. Recently I’ve decided to replace this 2014 small board computer (SBC) with newer version. I’ve also looked at better (the principle Keep it Small and Simple – KISS) solutions that became available – i.e. […]
Domoticz part 5: Grafana, InfluxDB, Telegraf – beautiful and easy graphs 10 July 2019
Grafana is the answer to the nagging question we’be been asking ourselves over the years – how to quickly and nicely present our data gathered from devices. InfluxDB on the other hand is the database that is as easy and simple to use, thus making it an ideal candidate for this job. Let me show […]
Raspberry Pi 4 – a surprise but also radical change in the project’s direction 25 June 2019
The new Raspberry Pi 4 is a very interesting change in the direction of the original project. Why? I will summarize what we already know, right after the premiere: new CPU, with much more computing power – not because of the clock, but ARM cores in version A72. The execution process – 28nm, is perhaps […]
This entry is only valid for Polish electrical energy provider – Tauron… 4 May 2019
…but if you really think this is usefull to you – let me know, so I have an excuse to translate it! The post This entry is only valid for Polish electrical energy provider – Tauron… first appeared on Let's play with the technology.
0.96″ OLED SSD1306 display and Raspberry Pi 30 March 2019
[Update: 2019-03-30] Our reader, Paweł Kopacz, noticed that pip, setuptools and wheel are also needed Quick and visually compelling projects don’t come easy ? Naaah, just like last time – let’s get on a very nice and easy project – attaching display onto Raspberry Pi. As we were chating on the Malinowe Pi Group, Hubert […]
[UPDATED 03-02-2018] SMOG sensor – 2,5 and 10 micro meter particles 8 February 2018
[Last changes]: 07-11-2017: Additional data from richer stations, Open-Smog Integration 20-12-2017: USB power control on Raspberry Pi 3, thanks to reader 02-03-2018: New API from GIOŚ Poland SMOG is common nowadays in big cities. Let’s put together a working, precise own SMOG sensor, first for the 2,5 and 10 μm size particles. There is one issue […]
ESP8266 and SMOG part four: Sleep mode for SDS011 in ESPEasy MEGA 2.0 27 January 2018
The SMOG sensor project became a bit complex – along with the addition of relay. In the mean time thanks to Gijs Noorlander and yours- since you build, ask and use the sensor – we got updated version of ESPEasy MEGA 2.0 for ESP8266. Why the new blog entry? That’s because Gijs added the included […]
Measuring air quality using Bosch BME680 and AMS CCS811 – IAQ, TVOC, eCO2 16 December 2017
Measurement of basic environmental data in our apartment – temperature and humidity is one of the most popular applications of commonly available sensors for Raspberry Pi (RPi), Orange Pi (OPi) and ESP8266. Then we added ability to measure the SMOG otuside and inside and today we will deal with two new and very interesting air […]