I used a 5V regulator to regulate the 9V going into the motor, and then I thought that I could power the arduino with that same 5V, and it worked! I was able to unplug it from the computer. But doesn’t this defeat the purpose of using an external (to arduino) power supply? Was the […]

I got a very long (2 ft i think) force sensing resistor for our media controller, and I’m using it for this lab. I really love it. Its so sensitive and conducts evenly throughout its length. The next part includes two flex sensors. With the addition of the switch, I tried to make it add […]

I have been so frustrated for so long about this issue that keeps resurfacing, especially in this lab. I first had this problem in the stupid pet trick, when I didn’t know anything about serial communication, I faked my way around it by altering the code, and now its back to haunt me. I think […]

The servo code was really interesting : the fake analog out strategy of pulse width modulation. I’m trying to understand it: As I understand, a full pulse cycle of two pulses, consists of a high pulse of 5V and a low of 0V, no V, of varying lengths (in order of a few milliseconds – […]

I soldered the ac/dc converter and used that for my power supply through a 5 volt voltage regulator. But I believe there is something wrong with it, it may be blown out or burned. At first it got very hot ( I may have wired it incorrectly the first time) then the voltage readings I […]

analog input labs

I wanted to move the switch to somewhere functional, so I converted the project into an occupied/available bathroom sign, modeled here by Donna. When the door was locked the light turned red. [wpvideo USu3ltnY] Switch Open: Switch Closed: I just saw that Ezer also made an amazing occupied sign! But with more applications: http://www.ezerlonginus.com/?cat=4

1st PhysComp lab