capacitive touch sensor on the raspberry pi - Raspberry Pi Forums

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hello all,

i'm trying wrap head around following diagram:
https://learn.adafruit.com/assets/14466
https://learn.adafruit.com/capacitive-t ... -pi/wiring

don't understand how out sensor connected raspberry pi. looks it's going directly raspberry pi's #23 pin , skip resistor together. also, described, out sensor goes high when pressed, why it's connected ground.

btw: i'm trying wire directly pi, skipping breadboard. here's going try:
sensor out -> 10k resistor -> pi #23
pi gnd -> sensor gnd
pi 3v -> sensor vdd

it?

thanks,
clinton

as read it, resistor goes output/#23 ground. output goes #23.

think resistor there discharge #23 when output isn't high.

use 3 connection on sensor, vdd, gnd & output. resistor goes output gnd , output goes #23, (rpi input).

clear mud. i'm hopeless @ explaining stuff. hope helps.


raspberrypi



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