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ADAFRUIT 12-KEY CAPACITIVE TOUCH SENSOR BREAKOUT - MPR121, ADAFRUIT 1982

  • Auf Lager GALAGO: JA, 1 Stk.
    Auf Lager DOBAVITELJ: JA, 134 Stk.
  • Lieferung 7 Tage
  • Marke: ADAFRUIT
  • ID-Nummer: 539/57
10,82 €

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 Adaruit put it onto a breakout board for you. Since it's a 3V-only chip, Adafruit added a 3V regulator and I2C level shifting so its safe to use with any 3V or 5V microcontroller/processor like Arduino. Adafruit 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, Adafruit 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.

 

Tutorial

Specifikacije

Glavno

Processor
Broadcom BCM2837B0, Cortex-A53 64-bit SoC @ 1.4 GHz
Memory
512MB LPDDR2 SDRAM
Connectivity
2.4 GHz and 5 GHz IEE 802.11.b/g/n/ac wireless LAN, Bluetooth 4.2/BLE
Access
Extended 40-pin GPIO header
Video & sound:
1 × full size HDMI

Dimenzije

Dolžina
99 mm
Širina
207 mm
Višina
208 mm
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