This lab still has no progress because the serial monitor printed "APDS99960 sensor not working. Check your wiring" again, even though I re-solder the pins of the module with good quality tin. I guess the module was already broken, will buy a new one then come back to this.
Everything goes well. The error of Arduino in week 8 didn't show up this time.
I purchased a 6V power supply last week and conducted motor-related labs again. When I bought the supply, the store offered a package including a power supply and a plumb joint as right:
The two-pin squared is the negative end, and the L-shape pin is the positive end. I got the info from the seller. But when I asked why there are two negative pins, is it just a backup pin? The seller said yes without a reason.
<aside> ❓ This may not be a good question, but I am still curious because the service staff didn't answer my question: Why the negative end has a backup pin, does that mean a negative end is more vulnerable to be broken? Or Are there other applications or situations of three-pins connection for the supply?
</aside>
https://player.vimeo.com/video/483465770
These are the photos I took from a desert in the northwest of China. The fluid beauty(of course it's the work of wind) makes me naturally think of music-related things. So I want to create an interactive installation between an artificial miniature desert landscape and MIDI music.
The above schematic is a simpler way to connect all these elements, except I prefer to use a "string instrument" interface to produce the original data. Because its specific movements are more matching to the texture of the desert--like a wind. Besides, what I am unsatisfied with this system is that the final music and the final desert texture have no relationship, they just present different patterns after I input the same dataset.