“Remember which things are conductive…” said Becky last week.. and this week, I invented an interactive soup spoon which performs as a circuit switch when it is dipped in to the conductive liquid.
here is the video of my soup spoon switch:
and here you may find my basic switch code trials:
This week I was tasked with designing an innovative switch.
While at brunch in Park Slope I saw a person put out a set of glass and metal espresso mugs with metal saucers. I put down my mimosa and went to retrieve them. The metal and act of removing the espresso mug from the saucer make the perfect parts of a switch.
I used alligator clips to connect the batter place and led to the espresso saucer and mug. When the mug is on the saucer it completes the circuit turning on the led.
Check out the instagram video below!
Lots of experimenting with Arduino!
For the Button test video please check out my Instagram: http://instagram.com/minuscoco
My switch was heavily inspired by Berk’s “awkward plush night light” but deals with a different yet still very awkward scenario. I designed this switch to light up an LED every time the toilet seat is down. This way I know that the bathroom is going to be used for an extended period of time. Also I know not to open the door since I’ve discovered my suite mate refuses to lock it.
Enjoy! 🙂
Buttons
State Change Detection
Digital Pull
Debounce
Creative switch
For my innovative switch, I created an LED candle that’s powered by a fork and knife touching. Check out the video here!
This happens throughout a meal so the candle with flicker on and off. The switch is normally on so it will turn off when the fork and knife are crossed — symbolizing the end of the meal.
The idea is that this switch will make people more aware of the act of eating and will happen them slow down and enjoy every bite!
A wire stapled to each side of a folded piece of paper creates a simple “button.” The large surface area makes it applicable to some unique situations.
Maybe it’s for a light-up chair: Brandon sits on a switch
Switches
http://www.youtube.com/watch?v=kGHHQWkFC6M&feature=youtu.be
Magnetic Switch
http://www.youtube.com/watch?v=kdcAzhEGU2o&feature=youtu.be
I wanted to make a switch with magnets. The idea was that the magnets which are put on magnetic boards with notes, pictures etc should light up when the two magnets come in contact with each other. The problem is that craft magnets generally dont conduct electricity, unless they are covered with a metallic surface.
Innovative Switch – Cigarette Reminder
I worked with a metal cigarette case that utilizes spring-loaded braces to keep the cigarettes in place: when cigarettes run out the metal arm touches the metal interior of the case, lighting up an LED alerting the user that he / she is fresh out of cigarettes. The light will turn off once cigarettes have been loaded back into the case.
I worked with an Arduino Uno / breadboard to test the switches (button, denounce, input pull-up and state change detection). Videos of them in action are uploaded below:
Button Test:
Debounce Test:
Input Pull-Up:
State Change Detection:
I used an aluminum clip to create a switch. I wired a piece of chipboard with one LED. When the board is clipped into the metal clip the circuit is completed and the LED lights up.
The entire metal clip is conductive so I had to find a way to break the circuit. I attached a piece of felt to one of the inner faces of the clip. I then ran a coated wire along that side of the clip. By doing this I was able to run both the power and ground through the clip. The circuit is only completed when each face of the clip meets the end wires from the LED.
Here is the result:
For my creative switch, I made a key going into a lock activate an LED. I hooked up the LED to an arduino board and connected wires to both the lock and the key. The open circuit closes when the key goes into the lock. This would be great to use as an extra security measure to guarantee that your lock is locked. It’s perfect for people who are paranoid about keeping their stuff safe. Watch the video below:
Below are the videos for the 4 switch tests:
Button test:
Debounce:
DigitalInputPullup:
StateChangeDetection:
