SMMM is a solar instrument that is powered by solar energy and composed and played by the sun as a player. As the sun changes its position, the light casts on the structure via open holes on the body of the cylinders and the transparent top, and the LDR sensors inside of the instrument detect the light intensity and make tones according to the data. Every moment of the sound is unique as the position of the sun consistently moves according to the astronomical factors and the light and shadow keeps interactively collaborate to create the tone.
The concept of the project was started from the thoughts about the relationship between the light and shadow. As the light casts in the Pantheon, we tried several versions to cast the light from the top to the bottom successfully and wanted to see how the light and shadow interact with the structure.
After a few ideas, we finalized our design as a linear structure and by adding irregular circular holes on the body of the cylinder and transparent top, the light and shadow would cast on the middle of the cylinder in various light intensities. The dynamic difference in light intensity would be detected via LDR sensors which are located in the middle of the structure.
This is short demonstration GIF showing how the instrument works and user can interact with the instrument.
The total daily estimated power consumption was 0.6893Wh/day as we're using the components; Arduino Nano 33IoT, servo motor, 4 LDR sensors and a speaker. We used solar panel and battery pack, which were thankfully provided by Voltaic, to run the entire system.
After then, it was installed in Navy Yard and tried to collect some data throughout few days. Some hours were not recorded properly and lost the connection from the MQTT and some network problem but we were able to get some valuable datas from the sunrise to before the sun peak hours, the sun peak hours, after sun peak hours to before sunset and the time without the sun.
From the data we collected, we wanted to experiment with some sound, and as the first step, we gathered those data and created short chronicle video to show how the sound would be played throughout the day.
The sound would start from low and heavy sounds when the environment is dark and as the sun rises and becomes getting brighter, it starts to make higher and lighter sounds.
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