Instead, there’s a bit of a hack in the sketch to optionally blank it between selected hard-coded hours (eg 7pm-7am). To keep the build simple, there’s no LDR to sense ambient light and dim the display. There is no backlight control and the thing is quite bright. The front plate is attached to the back plate with stacks of standoffs. But I decided to add some protection in the form of two laser-cut clear acrylic plates. This sandwich would actually have been enough, since it stands up OK. The LCD shield goes on top, and Uno underneath to create a quite thick sandwich. This gave me access to the pins I needed for the RTC and the two switches.
#FLIPCLOCK SOFTWARE#
There was a lot of software in this project so when the time came to go from prototype to final assembly I decided to go to the other extreme and keep it as simple and minimalistic. I connected SET/ADJ push-buttons to 10 & A5 and used 11 & 12 as SDA/SCL for a software I2C to the DS3231 real time clock module. Fortunately that leaves pins 10,11,12,13 and A5 free. This shield has a built-in SD-card reader, but no touch screen. The viewing angle is fairly important, from the wrong angle the display is quite washed out. The only other interaction is a) setting a “window” on the screen and b) filling it with colour data.
#FLIPCLOCK CODE#
As always, the trick is finding some code which successfully initialises the display (including orientation). The clocks use a simple automatic DLS adjustment class which takes a table of start/end dates. As well as setting the date and time it configures the red/yellow bin cycle (or none) Pressing Set from time display goes to the configuration screen.
Pressing Adj from time display cycles through the faces (including a pseudo-face which randomly cycles through faces). The sketch uses all but around 100 bytes of the Uno’s program storage space. There was a little program memory left, so I squeezed in a very simple Pong Clock, again using code from an earlier project. The look is based on this font Triangle ClockĪn adaptation of an eariler project with a triangulated irregular network (TIN) style face, more pretty colours. The LCD colours are appealing, so I experiment with coloured cubes. The LCD inspired me to add in some additional clock “faces”: The angles come from skipping every 4th row of the digit data, so it’s acos(3/4)=41°, close enough to 45°! The time digits change with a detailed 3-step animation (top flap at 41°, 90° and 131°). It’s alternate weeks and I keep forgetting (this display is optional).
As a bonus, across the middle there’s a blinking/flipping colon and also a coloured digit indicating the number of days until I need to put out either the rubbish bin (red) or the recycling (yellow). The time is in big digits across the bottom.
#FLIPCLOCK DOWNLOAD#
Choose your computer system, download it, open the folder, click the Fliqlo Setup.exe file, press RUN and then it should open in your desktop/screensaver settings and then you can apply it.The main clock display is the day, date and month in smallish flip-style digits across the top of the LCD (landscape mode). Go to the site and on the top right there are some little lines, click those and you’re taken to the download page (or just click here if easier). It’s for both Windows and Mac… Here’s where you find the black and white flip clock screensaver Here it is on my computer if you’re not sure what it is! It’s that cool black and white digital clock which flips the time over.
#FLIPCLOCK FREE#
Most people wonder whether it’s a built-in option, but it’s actually a screensaver. Buy Retro Flip Clock in Collectable Clocks and get the best deals at the lowest prices on eBay Great Savings & Free Delivery / Collection on many items. Have you always wanted that black and white flip clock screensaver for your computer? It’s not easy to find, and I often get asked about it when someone sees my computer.
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