2016-12-11 (Su) Clockwork Theremin

All of the components for the face were installed including the graphic equalizer and the distance sensor adapter. Screws for distance sensor adapter were not ideal, they were countersunk and too long but they were on hand and the long screws won't be accessible.

Assembled faceplate

It took several hours to arrange the components to go inside the enclosure. Standoffs were purchased for the components so wires could be run under some of them and heat could vent off the ones which run hot, like the motor drivers.

Professionally, I'm an industrial engineer. I have worked in both CES and UL shops doing everything from drafting the concept of a panel all the way to troubleshooting them in the field. This entire panel is DC, unlike the ones I design at work but it was second nature to separate the power-carrying components and the light-duty control components. This is a commandment in industrial electrical design. The motor drivers, which each utilize a 25KHz PWM and put off a lot of heat, were put under the vented portion of the enclosure. This is also where the power comes into the box. The next component, moving from the right, is a voltage converter which will take the 12V supply and convert it to 5V for all the control components to the left. Next is the Arduino. An UNO was selected since this project may be displayed to people learning coding so a recognizable device was more important than an economical one. The waveform generator was next and almost at the end since this will have the most delicate signal; the audio waveform. Last, farthest to the left, is a prototyping circuit board which will distribute signals to everything and hold a couple electrical components.

Layout of components

Parts list:

The rest of the posts for this project have been arranged by date.

First time here?

Completed projects from year 1.

Completed projects from year 2.

Completed projects from year 3.

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2016-12-10 (Sa)