Automatic darkness activated light
It uses special candle flickering LEDs.
Desk Clock
My desk clock is taking a shape. Once a day, it contacts with NTP time server to synchronise the clock.
On one way it is simple and minimal. But I want to make it more wild.
Desk clock
Clock dada on my Serial Plotter app
Code on GitHub “Lavva kellä” .
Board game table
Last week I designed this board game table. It has four sides and users can select what they like to play. Most interesting part for me was to come up with a locking mechanism and 3d-print it.
3d and CNC files are designed completely with Onshape free maker version.
Links
Tauno Serial Plotter
Tauno-Serial-Plotter is simple serial plotter for Arduino and others boards. Written in Python3.
In the last few weeks, I have learned how to package my Serial Plotter app into Ubuntu Snap format and made it available in Snapgraft.io snap store. Also, I have a plan to make it available as a Flatpak.
It took a lot of time to fix all the small bugs. And to test it on different machines. Now it’s usable.
And I had made Windows 10 version. It’s on GitHub.
Links
Pages from notebook
This is some selected pages from my last year (2020) notebook.
Võta aeg maha
Some illustrations i did this autumn. They are digitally painted watercolours.
SketcUp + Twinmotion
This autumn I learned SketchUp. It is quite different what I have used to use. In work, I use mainly SolidWorks and OnShape on free-time projects. I think SketchUp is good for thing which it is intended: to quickly visualise ideas. And plus side is that lot of other programs can import SketchUp files.
Twinmotion
It is easy to import SketchUp files to Twinmotion. And instantly they look a lot better and more realistic.
Solar sailer
Solar sailer or just array of photoresistors
This my little project to measure light. It has 6*8 photoresistors or pixels. So I can measure 48 different values. A longer-term idea is to make small photosensor. I’ve done a little python script and app to display data: a heatmap graph.
Back 
Front 
LDRs 
Photoresistors
What i learned so far
- I should measure all resistors and LDRs first. So that they have the same value.
Code on GitHub: https://github.com/taunoe/solar-sail
HackSpace magazine
My God’s clock project was published on HackSpace magazine issue 37. (https://hackspace.raspberrypi.org/issues/37/pdf)
More about my project can find here: https://taunoerik.art/portfolio/matrix/
Watercolour Birds
Digitally painted watercolours.
yak
Some digital painting experiments.
My first digital drawings
Hardware: Wacom intuos pro 24″
Software: Adobe Fresco
Lämmämõõdusk
Description
A device that measures the ambient temperature in the environment in which it is located. And displays it on the screen.
Artistic description
Plant-like structures. Display like blossom. Bottom woodblock aged with brushing with a wire brush and oxidation solution (steel wool + vingar).
Animations
When the number to display changes it plays short animation.
Technical description
The first goal was to test an easier way to connect 7-segs and shift registers.
Main CPU, Arduino pro mini, uses thermistor to calculate temperature. Uses two different algorithms for this: Steinhart-hart equation and Beta model equation.
The display consists of two seven-segment displays. Drived by two 74HC595 shift registers. Which is connected to the seven-segment displays in a non-traditional way.This makes the construction easier.
Parts list
| no | Description | pcs |
| 1 | Arduino pro mini Mega328p 5V | 1 |
| 2 | Shift Register SN74HC595N | 2 |
| 3 | 7-segment 5611BH / 5161BS | 2 |
| 4 | Resistor 120 | 16 |
| 5 | CH340E USB to TTL BTE17-06 | 1 |
| 6 | Thermistor 10k | 1 |
| 7 | Resistor 10K | 1 |
Readin data
The simplest way to read serial data is to use Miniterm:
Also, I have made two Python scripts. read.py and simple GUI app gui.py. What display average temperature.
Links
- Project and code on GitHub
Tauno Erik 