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Electronic brick - Touch sensor/button brick


18,71RON cu TVA  12,00RON cu TVA
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Modul buton, compatibil cu placa de dezvoltare Arduino (sau clona).

 Overview

This is a simple touch sensor module. You can use it to replace a traditional push button. It uses the TTP223-B touch detector IC. It measures the capacitance of a metallic pad. It can detect the change in capacitance when a finger is near it. This is the same technology used in the iPhone touch screen. So you can place the metallic pad under a non-metallic surface such as a plastic or glass sheet and it will still work as a button. This may be useful for projects that need to be waterproof. You can also make a secret button by placing it inconspicuously behind a smooth surface. For instance you could place them under a nonmetallic card table and by casually pressing the right location on a tabletop surface you could mysteriously control your DIY project. 

 

 Features 

  • Electronic compatible interface 
  • 2.0-5.5V DC supply 
  • response time max about 60mS at fast mode, 220mS at low power mode @VDD=3V 
  • Low power consumption 

 

 Applications Ideas 

  • Inconspicuous button 
  • Water proofed electric product 
  • Button key replacement

 

 Programming

The following sketch demonstrates a simple application of controlling the led by the Touch sensor. When you touch the electrode using your finger, the led light.

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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);
}
}

 

Specification

Brick Type: Button and Switch

Brick Interface: 3PIN

Brick Power Supply: 5V

Board Size: 37 × 21 × 1.6mm

Weight: 15.00g

 

Documents

 Schematic

 Datasheet

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Produsul a fost adaugat in data de Monday 07 May, 2012.

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