STEMMA QT MPR121 12-Key Capacitive Touch Sensor Gator - module with 12-channel touch sensor
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  • STEMMA QT MPR121 12-Key Capacitive Touch Sensor Gator - module with 12-channel touch sensor
  • STEMMA QT MPR121 12-Key Capacitive Touch Sensor Gator - module with 12-channel touch sensor
  • STEMMA QT MPR121 12-Key Capacitive Touch Sensor Gator - module with 12-channel touch sensor
ID: 1186904
5906623431847
zł39.90
Tax included

zł32.44 tax excl.

Module with 12-channel MPR121 capacitive touch sensor. The board is equipped with a Stemma QT connector and communicates via the I2C interface. Adafruit 4830

24h
Available
Available quantity: 2
Kamami is the official distributor of Adafruit modules and development kits. All boards of this brand in our offer are original and come directly from the manufacturer.
 

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Same day shipping

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14 days for return

Each consumer can return the purchased goods within 14 days

Description

Module with 12-channel MPR121 capacitive touch sensor. The system combines two functions: capacitance measurement and touch detection. The constant current capacitance detection function measures capacitances from 10 pF to over 2000 pF with a resolution down to 0.01 pF. Once the electrode capacitance data is collected, the sensor determines the touch or release state of the electrode by comparing it to a capacitance baseline value. The module has 12 completely independent electrodes with built-in auto-configuration and an interrupt generating output. For each of the channels, the user can connect a touch probe, e.g. using cables with alligator clips, and create a touch keyboard. The board is equipped with a Stemma QT/Qwiic connector and communicates via the I2C interface. It is powered by 3.3 V or 5 V. Full documentation of the module with examples of use is available on the product page.

Features

  • Internal 10-bit ADC
  • Integrated independent autocalibration for each electrode input
  • Completely independent electrodes with built-in auto-configuration
  • I2C interface, with IRQ interrupt, interrupt output informing about electrode state change
  • 12 inputs for electrode and capacitance detection, 8 of which can also drive LEDs
  • Autoconfiguration of charging current and charging time for each electrode input
  • Separate pick-up and trip thresholds for each electrode, ensuring hysteresis and electrode independence
  • Capacitance measurement from 10 pF to over 2000 pF
  • Resolution 0.01 pF
  • I2C interface
  • I2C address: 0x5A (default), configuration jumper
  • Voltage level converter
  • Supply voltage: 3.3 V or 5 V
  • Dimensions: 51 x 25.2 x 4.5mm
1186904

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