Arduino

Lightning sensor for Arduino

Leave a Comment / Arduino / By Rafal

I’m sure that in the mind of anyone who has worked with Arduino boards, the idea to build your own weather station has appeared at some point. Such projects are most often based on the simplest sensors for temperature, humidity possibly pressure. Sometimes a module is also added to measure wind speed. However, practically no project is equipped with a sensor capable of detecting lightning. This is a rather strange state of affairs, given that it is very simple to run this type of module in the Arduino environment.

HPDL-1414 display operation

Leave a Comment / Arduino / By Rafal

There are a great many different kinds of displays on the market – LCD, LED, OLED, etc. We encounter most of them on a daily basis, but there are also some more classic designs, such as the HPDL-1414.

Barcode and QR code reader on Arduino

Leave a Comment / Arduino / By Rafal

Practically every day we encounter bar codes of various kinds. Although we don’t usually pay attention to them, they play a very important role in today’s world – the identification of products in the store, the flow of packages in logistics centers or the proper distribution of components in production processes. Barcodes are used in each of these areas, thanks in part to their simplicity. The small size of the code can be easily scanned by an automatic scanner or an operator equipped with the appropriate equipment.

Soviet VFD lamp controller
Some time ago on one of the popular auction sites I noticed a rather interesting offer. It was a module of unknown origin with a small VFD lamp, which I suspect was the seller’s main motivation to get rid of it. After all, fluorescent designs sell quite well, though not as well as Nixie lamps. …
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PRIVILEG Modell 802 – Calculator from the former West Germany
During the communist era, the dream of many people was to own electronic equipment from the West. Acquiring the coveted computer equipment was downright impossible, but equipment such as calculators and audio systems were somehow obtainable. Today we will take a closer look at one such design. The Privileg Modell 802, as it is referred …
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In search of the perfect electric voltage
When taking DC voltage measurements with a multimeter, we usually don’t think about its accuracy. Receiving a result of 5.1V, when we expect something in the neighborhood of 5V, we assume that the multimeter’s indication is correct, telling ourselves that simply at the output of the power supply or the USB port of the computer …
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The arcana of technology, or what do Qualcomm Snapdragon X and Apple have in common?
One of the more interesting developments in the world of technology is the recent launch of a new series of ARM processors created by Qualcomm. We are, of course, talking about the Snapdragon X Elite and Snapdragon X Plus chips, which are designed to run in Windows laptops. This is not the first attempt to combine Windows and ARM architecture CPUs, but it is the first one that, in my opinion, can succeed. However, in order for me to sufficiently explain the full background of this story, we need to go back to 2007.
Электроника МКУ-1 – Soviet school calculator
The story of our today's hero begins in 1987. It is then that the electronic equipment factory in Svetlovodsk (today's Ukraine) leaves the first calculator Электроника МКУ-1 (Elektronika MKU-1). The device was the result of an idea by officials of the Central Planning Bureau and was designed with a specific purpose in mind - the equipment was to serve high school and college students of the Soviet Union. It would enable them to solve even complex mathematical equations much more quickly and simply.