Timothy Yuen's Page

Above is my video for tutorial 4.

I attempted to use a stepper motor at first, but this did not work. Probably because the class i used required the use of PWM signals, but when I use it with relays, these signals aren't sent to the motor. Continue

Does anyone want to do group work? :p…
I’m quite lost with good ideas on implementing.

Background
Many websites write about little things in which you can help to save energy. And one of these is that they recommend you to use the washing machine when you have a full load. Also you should hang your clothes to dry rather than using a dryer. A dryer uses a lot of energy and hanging clothes are free!

Objective:
Going along, I wanted to make something to make people wash clothes when the weather i… Continue

Video of the tutorial.
Analogue input ranges from 0-1024, but the pwm pin only accepts 0-255, so we needed to divide the input by 4.

Well, rather than thinking of how to persuade a person to save water/power, i tried to approach this from a different angle, which was to think of the feedback device and then see what this is best for.

I thought about using electromagnets because we won't be able to see it in action and it should be able to provide some cool/interesting patterns.
The motivation of the idea came from when i used to place magnets near sand, and magnets would attract these very fine magnetic particles. It'd cover… Continue

Well, I didn't exactly pick up on the ambient idea and was thinking of ambient plus persuasive. This was very hard coz their ideas kind of clash.

Anyways, i'll skip the first idea i had about posture/seating in front of a computer.

Shower Times & Temperature (My original idea on this)
Target Audience: Family
Target Behaviour: To make individuals in the family shower quicker and waste less water and energy.
Approach: I think that individuals would be more likely… Continue