Soldering, basic instructions

Posted on ke 18 heinäkuu 2018 in Articles • Tagged with electronics, soldering

Hand soldering is still a thing if one does prototypes, repairs old stuff or intricate small batch production.

solder

lalalal allalallalaa lllaaa lallalala allllaalal allla llalla allala alal al al alla lalalllaa ll allaall allal

Soldering standard components ( 2 pads in the ends of …


Continue reading

Plant irrigation system with solenoid valve

Posted on la 28 huhtikuu 2018 in Articles • Tagged with measuring, irrigation, gardening, electronics, embedded systems

Super simple automatic irrigation system can be made with normally closed solenoid valve.

valve

lalalal allalallalaa lllaaa lallalala allllaalal allla llalla allala alal al al alla lalalllaa ll allaall allal

Idea is to have water reservoir somewhere bit higher, so all needed for water …


Continue reading

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 …


Continue reading

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 …


Continue reading

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 …


Continue reading

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 …


Continue reading

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 …


Continue reading