Polar Wall Clock Build Log
The inspiration for this project came while browsing [D3js.org](https:///D3js.org). I came across this JS project that is a clock with each segment of time being represented by a rotated element on a circle.  This inspired me to create this same design as a wall clock. Each section on the clock will be a string of addressable LEDs controlled by an [Arduino Nano](https://store.arduino.cc/usa/arduino-nano). The basic structure will be a rectangular wood block that then has channels in the back for the wiring and through holes for the LEDs. I took this concept to Fusion 360 to generate a model.  ### Components --- #### LEDs There are 184 individual nodes in the design, which means 184 LEDs. I purchased this [strip of 300 addressable LEDs](https://smile.amazon.com/gp/product/B018XAELE4/ref=ppx_od_dt_b_asin_title_s00?ie=UTF8&psc=1) from amazon. These are easily broken down into individual LEDs and joined again via soldering. The important factors to note are the power specs for each LED, listed as DC 5V, 0.3W/LED. #### Power Supply Using the data from above we can figure out the minimum power supply needed to run the system. While in most use cases, not all the LEDs will be on or using full power during normal sequences. But best practice when designing a system like this is to have a power supply capable of handling more than the theoretical peak consumption. So, with 184 LEDs we will require 55.2 Watts and 11.02 Amps at 5 Volts. The power supply will also run the the Arduino Nano which requires 0.095 Watts and 19 milliamps at 5 Volts. This brings our total expected consumption up to about 55.3 Watts and 11.04 Amps at 5 Volts. Armed with these numbers, I purchase this [Altiove 5V 20A 100W DC power supply](https://smile.amazon.com/gp/product/B06XK2DDW4) to keep with the idea of being a bit overkill. By having the extra head room in both amperage and power, I will have the room to expand the project. --- ## Status of the project With the components and initial 3D model, the next step is to create a sample piece. I am currently learning how to use Fusion 360's CAD to CAM to create the G-Code for my CnC Router. I will update here as it progresses.