Taufeeq's Geek Pages




Creative Commons License
 All electronic diagrams, articles, softwares including source code and concept designs by Taufeeq Elahi Diju are licensed under a Creative Commons Attribution-Noncommercial-Share Alike 3.0 Unported License. Based on a work at www.taufeeq.com

Please read the license before utilizing the material given in this document in your own work.


Circle of Light - Intro

Circle of light is a "bulbdial" clock. Its a reconstruction of the original idea by ironic-sans and first constructed by evil-mad-scientist-labs. Thanks to all the geeks out there at ironic sans and evil mad scientist for all the grey matter they put into the original design. 


Whats new about Circle of Light ?

Circle of Light is my own reconstruction of the evil mad scientist clock, and although he does provide a few steps of construction, it does not provide any through walkthrough on how to build it. I will provide pictures of construction, schematics, microcontroller code, PCB artwork - means everything that you need to build it using my experience and experimentation. More over, I will be glad to help anyone building it or anything similar to it anytime through email. info[at]taufeeq.com Please don't hesitate to fire an email if any assistance is needed. 


About wood work

I have used a half inch thick sheet of what we call "lasani" board. Its more like a chip board but smoother in texture. I did not have any laser/CNC stuff in Pakistan where I built this clock so the carpenter had to cut rings out of the sheet with his manual tools. If you live in a more civilized corner of the world, you can get it done on a laser!


Things that I have improved

 My version of the clock is based on a PIC microcontroller, and you do not have to sacrifice any expensive hobbyist controller boards into it, I have provided the PCB so that you can build a stand alone device for you home.

My clock is powered by a Dallas Semiconductor's RTC that is dirt cheap, so that you never lose time if there is a power outage.

Many people commented on evil mad scientist's clock that it should have a conical shadow pole so that the shadows are pointed, and more like an arrow, so I implemented that.


Respect the License

Hacker culture is based upon sharing of knowledge and ideas, knowledge is meant to be free and unlimited. Ironic Sans provided an idea that Evil Mad Scientist build, both releasing it in the public domain. I have improved the design and taken it to the next step and am providing all plans to other geeks/hackers, and putting my work in the public domain so that people can continue the good work, and start where I leave it. This information is provided under CC 3.0 License, and MUST NOT BE used for commercial purposes. Also anyone using this information MUST put his derivative work again in the public domain for free, so that all of us can utilize it.


SECTION 1 - Overall Steps





In slide 1, you can see the rings that I obtained from the carpenter. There is also a circular base plate. In the 2nd slide, you can see the wood cogs i obtained so that i can separate the rings. In the 3rd slide, you can see I have put the 12 LEDs on one of the rings, and connected all the anodes of LEDs with a blue soft wire. Slide 4 shows a completed ring.

Slide 5 shows two rings completed and put together. In slide 6, you can see the base plate attached with 2 other rings, so that there is space under the base plate to mouth the circuit. In slide 7, you can see I have drilled 12 small holes in the base plate and put 12 wires into them. Now, in slide 8, I have put the assembly of slide 6, on top of the base plate to complete the infrastructure of the clock.

Slide 9 shows my PCB, it has a microcontroller, a RTC chip, a backup battery for RTC, microswitches to set the time, and drivers ICs to drive the LEDs. Everything about LEDs will be covered in the next section. Slide 10 shows the circuit being connected with the wood work, at this moment, I wrote the code for the clock. Next in slide 11, you can see that I have fixed the circuit underneath the base plate with two screws. In slide 12, I am gluing a thin foamic sheet on the clock to improve its look. 

In Slide 13, the foamic sheet is cut with a sharp razor and in slide 14, you can see some more foamic sheets, and plastic ribbons glued on the clock. Slides 15, and 16 show the clock in action.