Rgbphil made a great clock-like project, check out the video! –
…maybe holoclock is a little bit inaccurate….it does use holographic dispersion film on the front to give a bit of depth.
EagleCAD files and Sourceboost code is included in the zip files attached.
Why? The previous Minidot was overly complex, from the Microdot I learned how to do an RTC on a PIC using only a 32.768 crystal and didn’t need to use a special RTC chip. Also I wanted to get rid of the display chips from the previous Minidot. So now there is only a power regulator chip and a PIC16F88….just two chips.
The other reasons for an update were my Minidot was getting a bit un-reliable because of the seperate switch board and I wanted a soft fade between dot patterns as well as some sort of ambient light sensor to dim the display at night. The other Minidot was fixed brightness, and illuminated a room at night.
The device was constructed with the aid of the EagleCad software package and Sourceboost compiler.
instructables : Minidot 2 – The holoclock – Link.