Clock Message Box

Components

1 × WeMos D1 (R2 & mini) (ESP8266), 80 MHz, 115200 baud, 4M (3M)

5 × Max7219 LED matrix

1 × DS3231 Clock With temperature and memory. Battery will last about 8 years.

1 × Wood veneer Pre-glued roll of wood veneer.

1 × Wood to make box

Project Logs

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Touch button
matt thurstan • 07/10/2020 at 22:50 • 0 comments

I initially started off using a nice little round touch button with a TTP223 chip.
But after accidentally pushing the soldering iron through the chip whilst setting the jumpers I bought some other TTP223 chips on little rectangular boards which are slightly easier to solder.
Wood veneer
matt thurstan • 07/10/2020 at 22:43 • 0 comments

When ordering wood veneer from the internet, try and find a vendor that will send you the veneer with some packing so it doesn't arrive like this...
Max7219 LED matrix
matt thurstan • 06/18/2020 at 19:48 • 0 comments

I used 5x Max7219 LED matrices for this project. During testing I had issues with LED rows dropping out or LEDs going off and on. It turned out that while daisy-chaining the LED matrices together, power drops after 4 matrices. I solved this by powering the first 3 via the initial cables, then adding a separate power line for the last 2.

...now I know why they are sold in packs of 4.

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Discussions

Ken Yap wrote 07/10/2020 at 23:46

Like the look. Must look into woodworking. Presentation has always been my weak point.

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Saimon wrote 06/22/2020 at 08:00

Nice project!
I have made something similar time ago, i also tried to put a thin layer of wood in front of the LED matrix, but it wasn't very transparent with a poor result.
Checking in the wood shop i have found a vinyl adhesive paper with a wood effect, there was many type. I have applied one of that only in front of the display, leaving the rest of the box in real wood, the result was very good! very transparent.

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matt thurstan wrote 07/04/2020 at 11:48

thankyou. I tried different bits of wood and iron-on veneer was the best to get me the overall effect. When you start getting down to less than a mill thick the wood starts to break really easily. What I REALLY wanted was to get a piece of Rosewood (or similar) and CNC it out from the back so it was all one piece. ...wait till I am rich. [must finish my write-up]

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Dan Maloney wrote 06/19/2020 at 23:20

Looks amazing! Love the through-the-wood look.

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matt thurstan wrote 07/04/2020 at 11:44

thankyou

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Clock Message Box

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Touch button

Wood veneer

Max7219 LED matrix

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