But the clock is already finished, so, here comes a picture of it to get a better idea of what are we talking about.Ok guys so our project is restrained to th amount of digital outputs the Arduino NANO or promini has. The idea is that the brightness of the leds can be seen through it.Īs I said, I plan a set of posts for this clock DIY. All inside a wood case with a thin front wood panel.Temperature? this was something easy to add, but I don’t know how to fit it with the hour mode. Implies a buzzer and more configuration screens. And I would not bother with ♜ available memory. This would be awesome since the user could add its own events. Probably very clunky, imagine the SNES video games text selection and make it worse. Set up new event days from the same clock.I can already draw icons, but I only use them on boot and setup. But thereĪre some things that were left in the ideas cabinet: This is the design I came up to according to my resources and time. I am no DIY master, nor I have a lot of knowledge building cases, so for this step an architect (friend of mine) prepared the drawings and told me where to go for the laser cutting. The casing theme was: “let’s see what’s inside”įor this reason the case is fully transparent, made with methacrylate. EVENT HOUR mode is only activated when the day is special (maybe, 40 special days a year?). It will mostly switch between BIG HOUR mode and EVENT HOUR mode. USER: Press UP/DOWN buttons to set the minuteĪfter setting up all the screen, the time and date are saved in the RTC module. USER: Press UP/DOWN buttons to set the hour USER: Keep the SETUP button pressed around three seconds One is the Set Up button, the other two are the up and down buttons. The set up mode is driven with the three buttons. This is powered up directly via Arduino nano using a mini USB connector. The Arduino is directly connected to the first led matrix module, to the RTC module and to the three pushbuttons. Generic ElectronicsĮlectronically you’d better check its own blog post, but as an overview: There are some submodes mainly to set up the time and date, there is no option to create a new special event from the clock itself. This two modes of operation are the main modes. On the basic operation mode, the clock simply presents the current time: Show the name of the date alongside the hour.I toyed with the idea of buying other pieces (like a TFT screen) but since cost was a key factor and the led matrices were already in my possession I just scraped the idea. Nothing extremely fancy, but enough for the purpose of the project. The display is built using four 8×8 led matrices that I have lying around, creating a 32×8 display. The clock is mainly formed by a display, the control electronics, three buttons, Kind of an overview of what the clock will do, for more “meaty” content stay tuned, I plan on writing posts about each aspect:Īs you can see, I am mostly software oriented (as usual :-D) And here we have the first post describing how I created the clock. I had some spare parts from past projects (or tinkering) and a rough idea of what to do: a calendar clock. We only have one rule, and this is: “you have to do it yourself”. Back in business, I am alive and well, and working in an embedded software company.įor Christmas we play “ secret Santa” with my family, and this year I was going to take the crown home with me.
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