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Dr. Tõnis
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RGB bedroom Clock
Description Our bedroom clock needed replacement and of course I volunteered to build our own nice clock. In the end it was much larger work than at the beginning anticipated. Project summary In this project I built an RGB clock that gets its time online. My responsibilities CAD design 3d printing and building the clock frame Programming and testing Results Mechanically the whole project was simple and nothing special. I used a premade 32x8 RGB matrix that I just covered wi

Dr. Tõnis
Jan 92 min read


E-ink Picture framePrivate10.2025 – 11.2025 (2 months)DescriptionA few years ago I already made a picture frame using an e-ink display. At that time the screen resolution and colors were not the
Private 10.2025 – 11.2025 (2 months) Description A few years ago I already made a picture frame using an e-ink display. At that time the screen resolution and colors were not the best and that affected the end results. When I heard about new technologies I had to try it out. Project summary In this project I utilized a bough e-ink display that I controlled over a raspberry pi. The display has much better colors than the previous technologies and the size is almost an A4 page.

Dr. Tõnis
Nov 17, 20252 min read


Automated String Art
Private 09.2023 – 10.2025 (24 months) Description A few years ago I made my first try with string art. The result had a lot of...

Dr. Tõnis
Oct 4, 20252 min read


Controlling several MCUs wirelessly (ESP-Now)
Description While constructing the “Clock made with “24 clocks”” I noticed the EMI problems. I was wondering how to control the 4 digits...

Dr. Tõnis
Jul 30, 20251 min read


Clock made with “24 clocks”
Description For several years I saw an artist making a display using a lot of analog clocks. The idea has been with me a long time. 5...

Dr. Tõnis
Jul 30, 20252 min read
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