The Antique
Back to the LED's.
It turns out that coloring the outside of a mini LED can actually change its hue, but unfortunately, this is only true for "cool" shades. I can change it to blue, purple, or green but not to reddish or orange light. So the next question I'm dying to answer is, how do you change a 5 V dc voltage to alternating voltage? The aim is to make the lights gradually go from dim to strong and back to dim in a cycle. At my disposal, I have the very basic ingredients of electric circuits class - resistors, capacitors, inductors, diodes, BJT transistors, and a MOSFET.
One way that I know is by using diodes. Any other creative answers are welcome.
A random question: what fun things can you do with a motor (indoors) that's a 1990 build, used originally to drive floppy disks (remember those?).
I am thinking of doing something with rotating lights all around my room. I haven't tried it out yet. I will definitely have to make use of gears and other simple mechanical rotation to linear motion devices.
It turns out that coloring the outside of a mini LED can actually change its hue, but unfortunately, this is only true for "cool" shades. I can change it to blue, purple, or green but not to reddish or orange light. So the next question I'm dying to answer is, how do you change a 5 V dc voltage to alternating voltage? The aim is to make the lights gradually go from dim to strong and back to dim in a cycle. At my disposal, I have the very basic ingredients of electric circuits class - resistors, capacitors, inductors, diodes, BJT transistors, and a MOSFET.
One way that I know is by using diodes. Any other creative answers are welcome.
A random question: what fun things can you do with a motor (indoors) that's a 1990 build, used originally to drive floppy disks (remember those?).
I am thinking of doing something with rotating lights all around my room. I haven't tried it out yet. I will definitely have to make use of gears and other simple mechanical rotation to linear motion devices.
1 Comments:
"The aim is to make the lights gradually go from dim to strong and back to dim in a cycle"... why can't you use a capacitor to do this? you can still do it with DC voltage. The capacitors will begin to store charge, and then slowly discharge... making the connected LEDs glow and dim accordingly.
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