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Hello, I am looking for abit of help. I am creating a capacitive touch system with blue and Red LED'S that light up when touched. This is for a friend who has a disabled child, and it is going to be a learning aid for them. hav 2m of blue LED's and 2m of red LED's + x8 AA cells. I ned to create x2 capacitive touch pads that are 20x20cm and when the system is on the Blue LED's are lit up when either of the pads are touched, it changes to Red LED's on, and blue off, so it basically switchesLED'?
ALLTENCH007 1 week ago
At 1:00, he says "if the voltage across Cs drops below 1/4Vdd, then the output goes high". Ok, fine.
At 1:18 he says, "if the voltage across Cs rises above 2/3Vdd, the output will go low". What??? The voltage difference is negative, therefore the output is LOW, but then it gets inverted so it's HIGH.
Neither of those two equations makes sense either.
jpmorgan187 1 year ago
@jpmorgan187 Ya it was a mistake.. Look at 3:46 he says it your way...
6StringRevenue 1 month ago
im guessing this is the same way a touch screen phone works. but I don't understand how an object with no capacitance can unlock my phone and call some one when they are both in the same pants pocket
Aev308 2 years ago
@Aev308
i think every object has capacitance, at least metals and stuff like that, keys, coins (money), etc....
molinobeer 1 year ago