Case: Hollow silver cubes

Posted on la 14 huhtikuu 2018 in Articles • Tagged with crafting, silver, cube, case, mechanics, prototype, design

This was a practice with silver work: how to create a hollow cube? Hollow as silver as a material is of course bit expensive but also as solid cube would be really heavy. Heavy is not something one wants for example with jewellery …


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Case: Cryptex

Posted on pe 13 huhtikuu 2018 in Articles • Tagged with 3Dprinting, case, mechanics, prototype, CAD, design

Cryptex is a puzzle box that can store things like notes inside it, and can be opened only with correct code ( or violence ). Here is the model for super simple cryptex that was originally made as panic gift in huuuuge hurry:

cryptex

Exploded view …


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Case: Environment sensing, part 5

Posted on su 24 syyskuu 2017 in Articles • Tagged with embedded, electronics, case, microcontroller, mursu, function prototypes

Needed fuctions for main board:

Timers:

We need to know what stuff is going in the bus and what 0’s and 1’s go to what message. In Modbus that is defined with time -> we need a timer to check when there …


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Case: Environment sensing, part 4

Posted on su 24 syyskuu 2017 in Articles • Tagged with embedded, electronics, case, microcontroller, mursu, design

Main board design:

The bord used is a general purpose Modbus board ( == remote terminal unit ) made by Alshain ( my employer ). We chose this also because it is really simple, so it would be easier to learn the basics and see what affects what …


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Case: Environment sensing, part 3

Posted on su 24 syyskuu 2017 in Articles • Tagged with embedded, electronics, case, microcontroller, mursu, design

Planning what the weather station should or could do:

1. We made a list of all kind of sensors one can easily get to know our options. Some sensors just were way too expensive (like oxygen or CO2) and some were not …


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Case: Environment sensing, part 2

Posted on ke 28 kesäkuu 2017 in Articles • Tagged with embedded, electronics, case, microcontroller, mursu

So, what you need to consider when writing code to a microcontroller? And what building blocks you need?

Most important part is reading manual. And the manual is loooong. And most microcontrollers don’t have ready-made tutorials online.

What I write after this …


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Case: Environment sensing, part 1

Posted on ke 28 kesäkuu 2017 in Articles • Tagged with embedded, electronics, case, microcontroller, mursu

First counter with hard core embedded programming

Point of this project was to do something somewhat useful while learning the basics of embedded programming in low level and using microcontrollers instead of a computer. We decided to do a weather station almost from …


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