Liebe Kunden,
wir haben von Samstag, den 23.12.17 bis einschließlich Montag, den 01.01.2018 Betriebsferien. Bestellungen in diesem Zeitraum werden erst wieder ab dem 02.01.2018 versendet. Bitte berücksichtigen Sie dies in Ihrer Bestellplanung.

Wir wünschen Ihnen geruhsame Feiertage und ein erfolgreiches Neues Jahr.

Der Artikel wurde erfolgreich hinzugefügt.
Der Artikel wurde erfolgreich hinzugefügt.

Adafruit 12-Key Capacitive Touch Sensor Breakout - MPR121

Adafruit
AKTION

Ab Warenkorbwert 50€ ein Aufkleber gratis!

Hersteller:
Adafruit
Artikel-Nr.:
EXP-R15-473
Herstellernummer:
1982
Verfügbarkeit:
14

Weitere Produktdaten ansehen

Garantiertes Versanddatum: 18.12.17, wenn Sie in den nächsten bestellen

7,99 €*

Add lots of touch sensors to your next microcontroller project with this easy-to-use 12-channel capacitive touch sensor breakout board, starring the MPR121. This chip can handle up to 12 individual touch pads.

The MPR121 has support for only I2C, which can be implemented with nearly any microcontroller. You can select one of 4 addresses with the ADDR pin, for a total of 48 capacitive touch pads on one I2C 2-wire bus. Using this chip is a lot easier than doing the capacitive sensing with analog inputs: it handles all the filtering for you and can be configured for more/less sensitivity.

This sensor comes as a tiny hard-to-solder chip so we put it onto a breakout board for you. Since it's a 3V-only chip, we added a 3V regulator and I2C level shifting so its safe to use with any 3V or 5V microcontroller/processor like Arduino. We even added an LED onto the IRQ line so it will blink when touches are detected, making debugging by sight a bit easier on you. Comes with a fully assembled board, and a stick of 0.1" header so you can plug it into a breadboard. For contacts, we suggest using copper foil or pyralux, then solder a wire that connects from the foil pad to the breakout.

Getting started is a breeze with our Arduino library and tutorial. You'll be up and running in a few minutes, and if you are using another microcontroller, its easy to port our code.

Technical Details:
  • Dimensions: 33mm x 19mm x 2mm / 1.3" x .8" x .1"
  • Weight: 2.2g
  • Uses I2C 7-bit address 0x5A (can be set to 0x5B, 0x5C or 0x5C)
  • MPR121 Datasheet