A place for my Physical Computing postings.
This started conceptually as an “Object of Desire”. In other words, another “shy object” (of which there have apparently been many), that “flees before you” as you reach for it, like all objects of desire. I realized though that this behavior was, for my box, a little on the dull and predictable side. Also, it [...]
Here are a few of the labs that haven’t been documented to date: Servo controller – added the following line: Serial.println(analogValue); Range of the flex sensor is about 20-960, so code was modified as follows: pulse = map(analogValue,20,960,minPulse,maxPulse); Resulting in much smoother motion of servo. Tone Controller – sensor range is 60 – 900 depending [...]
We have to hook up the parts and complete programming today. A few translation and aesthetics challenges: We need a few decisions: (1) should we solder a regular header to the touch screen wires? Seems like it would make life much easier. (2) should we try to get a 1 in hollow plastic tube and [...]
Jason Stephens and I have been working on our Arduino controlled / DS Touch screen driven Etch-A-Sketh. It’s coming along well. There were a few hiccups with getting the stepper motors to jitter less — Jason handled that using a number of tricks he developed, including “tuning” the motors RPM settings and reducing the number [...]
This second part of the lab was pretty straight forward. It was essentially about setting up serial and parallel switches. I also did some tinning of the 9v adapter so that it would be easier to attach to the board. The pictures are below:
This is a short video of my 3rd PhysComp lab involving a voltage regulator and setting some LED’s in series and parallel.
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This was a great learning lab, but required some playing and some reading. I think I understand tying the analog input to ground using a resistor as otherwise you have no “reference” point to set to 0. The voltage divider circuit I think I also understand, but I need to read further on it. The second [...]
I realized that I didn’t fully post the first Lab for physical computing with the alternating LED’s and the switch. The setup was relatively straight-forward, although it did look like the ground-ground 5v+ to 5v+ changes from this image to this image. Beyond that, playing with the circuit showed some bounce, so I played with the [...]
Personally, I wish I had the opportunity to do this walk around the downtown area near the former site of the World Trade Center. I lived down in Battery Park City for 20 years and between the (eventual) placement of air quality sensors and the video “ring of steel” that’s been put in over the [...]
I consider myself something of an agnostic. Not about religion. That’s really nobody’s business but whomever I’ll have to explain things to at (hopefully) a much much later date. No, I’m referring to technology agnosticism. I have no fundamental belief that Mac’s or PC’s or Linux or anything else is somehow better than any other. [...]