Seed Studio Grove Touch Sensor Manuale utente

Grove - Touch Sensor

User Manual

Version：1.0

Release date：2015/9/22

Wiki: http://www.seeedstudio.com/wiki/Grove_-_Relay

Bazaar: http://www.seeedstudio.com/depot/Grove-Touch-Sensor-p-747.html?cPath=85_94

Document Revision History

Revision

Date

Author

Description

1.0

Sep 22, 2015

Loovee

Create file

Contents

Document Revision History ········································································· 2

1. Introduction ······················································································· 2

2. Specifications ····················································································· 3

3. Demonstration ···················································································· 4

3.1 With Arduino ························································································ 4

3.2 With Raspberry Pi ·················································································· 4

4. Resources ······················································································· 6

Disclaimer

For physical injuries and possessions loss caused by those reasons which are not related to

product quality, such as operating without following manual guide, natural disasters or force

majeure, we take no responsibility for that.

Under the supervision of Seeed Technology Inc., this manual has been compiled and published

which covered the latest product description and specification. The content of this manual is

subject to change without notice.

The design of this product (including software) and its accessories is under tutelage of laws. Any

action to violate relevant right of our product will be penalized through law. Please consciously

observe relevant local laws in the use of this product.

1. Introduction

Grove - Touch Sensor enables you to replace press with touch. It can detect the change in

capacitance when a finger is nearby. That means no matter your finger directly touches the pad or

just stays close to the pad, Grove - Touch Sensor would outputs HIGH also.

2. Specifications

Operating Voltage: 2.0 - 5.5V

Operating Current(Vcc=3V):1.5 - 3.0μA

Operating Current(VDD=3V):3.5 - 7.0μA

Output Response Time: 60 - 220mS

Used Chipset: TTP223-BA6

3. Demonstration

3.1 With Arduino

This demo is going to show you how to turn on/off an LED.

Demo Code:

const int TouchPin=9;

const int ledPin=12;

void setup() {

pinMode(TouchPin, INPUT);

pinMode(ledPin,OUTPUT);

}

void loop() {

int sensorValue = digitalRead(TouchPin);

if(sensorValue==1)

{

digitalWrite(ledPin,HIGH);

}

else

{

digitalWrite(ledPin,LOW);

}

3.2 With Raspberry Pi

You should have got a raspberry pi and a grovepi or grovepi+.

You should have completed configuring the development enviroment, otherwise follow here.

Connection

Plug the sensor to grovepi socket D4 by using a grove cable.

Navigate to the demos' directory:

cd yourpath/GrovePi/Software/Python/



To see the code

nano grove_touch_sensor.py # "Ctrl+x" to exit #

import time

import grovepi

# Connect the Grove Touch Sensor to digital port D4

# SIG,NC,VCC,GND

touch_sensor = 4

grovepi.pinMode(touch_sensor,"INPUT")

while True:

try:

print grovepi.digitalRead(touch_sensor)

time.sleep(.5)

except IOError:

print "Error"

5. Run the demo.

sudo python grove_touch_sensor.py

4. Resources

Eagle Files

TTP223pdf

how to upload code

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