Geek magazine hacker daily blog

The thermocontrol block for an electronic cigarette on Arduino

1 year, 11 months ago
This the device is intended for receipt of steam with temperature monitoring of a titanic spiral (for nickel or iron — it is necessary to change RTCHANGE coefficient) that allows to receive much (or much if the match brings enough liquid) couple without overheat with formation of different bad substances, decay products of glycerin, propylene glycol and fragrances.

The scheme is intended for work with the battery for RC models, from two Li-cells. I selected the accumulator 500 mAh 25C tension 7.4V. Current and output capability can be varied over a wide range if only issued sufficient current with a cold spiral when its resistance is minimum.



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House meteorological station based on Arduino

1 year, 11 months ago

Instead of introduction


As most of the working people, occupation by own projects takes away only the remained free time. Therefore for a long time did not create and "hands" something itched to make. The present possibility appeared strangely enough at university. Behind a window September, the 4th course and approaching course on circuit engineering. We were told what course can be done in two variations: paper and to "gland".

For 5 years paper course at our university became by the principle "take old and aggregate them". Such approach did not suit me with the conventionalism therefore I at once selected course in "iron". As heart of course the Arduino microcontroller in view of the easily learnability was offered. After determination with type course there was one more question: and what exactly to make. As experience in programming of microcontrollers was not, at once opened Google and began to study the existing projects. There is a lot of projects, some of them quite simple, some are ingenious (the 3D scanner, for example), but the vast majority had no practical application. And I wanted what would not lie then on the shelf and did not collect dust there. After half-hour digression to the world of Arduino, interested me a subject of house meteorological stations and projects seemed not really difficult in implementation (that generally and bribed the beginner).

Here the subject for course and problems it seems was so selected over time as it was not planned.

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Control box pre-launch heater of Webasto (Arduino + Webasto = Ardubasto)

1 year, 11 months ago
Set me on a car before starting Webasto heater. After installation it became clear that control is exercised of it not a discrete signal (as on the previous my car) but only on the digital bus W-bus. The bus W-bus in electric parameters is analog of the bus K-line and for it there is an integral K-line converter – RS232TTL is a chip of L9637D. On this chip, on the basis of Arduino it was also decided to make management of a heater. The task was complicated by the fact that Arduino supports only the transfer protocol on a serial port without parity control, and the W-bus protocol works with settings of port 2400/8-E-1. For a bypass of it oscillograms of command of start of Webasto and command to Webasto were removed implemented by taymingovy delays.

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Management system greenhouse microclimate

1 year, 11 months ago

Beginning of a way


In one solar afternoon, having come to University, I learned that in this semester at me course on circuit engineering. The teacher suggested to make only the explanatory note "how to implement the project" or to learn a dark side of engineering and to create the real device. And as I was already on the 4th course, and having remembered that the only time when I put into practice the skills of the engineer was at the first year (fastened a book shelf to a wall), I decided "to work as handles". After short reflections, I selected the subject "Management System Greenhouse Microclimate". Most likely the choice was influenced by my love to automation of processes, or the fact that I also was engaged in cultivation of cucumbers in greenhouses. But we will long not pull — we begin.

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Bluetooth meteorological station on Arduino for beginners

1 year, 11 months ago
In this article I will tell about how to take the first step to the world of Arduino and to make own meteorological station. The meteorological station will consist of two modules: one module will read out information from the connected sensors, another — to bring read data to the small screen. For information transfer we will use Bluetooth.

Also I will provide information on setup of BT modules for work with each other.

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So, went!

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New Year's tricks from the Arduino Mega Server project

1 year, 11 months ago
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Development of the Arduino Mega Server project is well under way and in the course of work there are unexpected obstacles which should be overcome heroically. I will tell you about some of them today and, perhaps, it will save to you a little your time and nerves.

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Creeping line on Arduino + management from the smartphone

1 year, 11 months ago

Preface


Every year on the street, in transitions, in shops appears increasing advertizing LED panels on which the text runs both up, and down, and to the left, and to the right, and any multi-colored pictures are output. All this by itself draws attention of passersby and me including. And often I reflected as it is made and whether it is possible to repeat something similar in house conditions. And just in this semester we planned a term paper on Circuit engineering, and one of the offered subjects there was "An electronic creeping line". I thought: "You never can tell? I will try".

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As I made the snow blower 3.0 with management on Bluetooth with smartphone Android

1 year, 11 months ago
It is the shortest history of time of transformation of the robot lawn-mower into the DIY snow blower with management on Bluetooth with phone Android.



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Self-made cheap Dotwork-printer

1 year, 11 months ago


Occasionally in me the inventor's spark lights up, and I for hours sit and I solder/cut something. So it happened this time. I lit up idea to create the printer. The subject of creation of the 3D printer is already beaten and financially costly. Having a little thought, I decided to make budget version of the printer which could draw a pencil/handle/felt-tip pen. And having remembered the attempts to draw something in Dotwork style, I stopped the choice on the printer which automates this process.

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RGB night lamp based on Arduino

1 year, 11 months ago


Probably, everyone in the childhood had a dream (and not one). It is possible to try even to remember that feeling which overflows soul of the child at execution of his dream or that far familiar gloss in eyes … I in the childhood dreamed to have the night lamp.

Now I study on the 4th course BGUIR and when we were told that the academic year project on circuit engineering can be made not on paper, and on a piece of iron, dawned on me: the night lamp which was so wished in the childhood can be made most. And to make not just object which will light the room in a night-time, and the device what can be managed with ease under any mood. And why is also not present? I decided to add a feature to change colors by means of hands: the closer the hand is brought to a night lamp, the one of colors (RGB) burns more brightly. And also it would be desirable to manage a night lamp by means of a remote control panel.

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