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Grove - Touch Sensor

Product Code: 101020037
Excl. VAT: £3.03 Incl. VAT: £3.64
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This is a simple touch sensor module.

You can use it to replace a traditional push button.

Using 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. 


  • Grove 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 
  • 2.0cm x 2.0cm twig module 
  • Power indicator led 

Applications Ideas 

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

Please visit the wiki page for more info about this product.

Product Attachments

View FileGetting Started with Grove    Size: (1.57 MB)
View FileIntroduction to Grove    Size: (4.78 MB)

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