Seeed Studio 101020872 - Grove - 12 Key Capacitive I2C Touch Sensor V3 (MPR121)
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Seeed Studio 101020872 - Grove - 12 Key Capacitive I2C Touch Sensor V3 (MPR121)
The Grove - 12 Key Capacitive I2C Touch Sensor V3 (MPR121) is a multi-channel proximity capacitive touch sensor. It's a 3-in-1 module with the following features: Capacitance Sensing. Tough Sensing.
Capacitance Sensing: This module uses a constant DC current capacitance sensing scheme. It can measure capacitances ranging from 10 pF to over 2000 pF with a resolution up to 0.01 pF.
Touch Sensing: Once the electrode capacitance data is acquired, the electrode touch/release status is determined comparing it to the capacitance baseline value.
Based on Freescale MPR121, this sensor has 12 completely independent electrodes with build-in autoconfiguration. Thanks to I2C interface, you can detect all the 12 electrodes signals with only one Grove pott and the I2C address is hardware configurable from 0X5B to 0X5D. this also makes it possible for multiple Grove -12 Key Capacitive I2C Touch Sensor V3 (MPR121) to be used together for channel expansions in a single system, you can build a touch system which contains max 36 electrodes.
This sensor is an upgrade version of Grove - 12 Key Capacitive I2C Touch Sensor V2 (MPR121), it adds two more GND ports to the head in order to be more stable, meanwhile, the front Pin are spaced more widely so as to avoid a short circuit caused by the lines accidentally touch.
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Dimensions | 60mm x 20mm x 7mm |
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Weight | G.W 11g |
Battery | Exclude |
Operating Voltage | 3.3 V / 5V |
Operating Temperature Range | - 40°C to 85°C |
Storage Temperature Range | - 40°C to 125°C |
Capacitances Range | 10 pF to over 2000 pF |
Resolution | 0.01 pF |
Interface | I2C |
I2C address range | 0x5B,0x5C,0x5D |
Default I2C address | 0x5B |
Klikkaa tarkemmat tiedot | |
Valmistaja | Seeed Studio |
Valmistajan malli | 101020872 |
Mitat | 60 x 20 x 7 mm |
Paino | 11g |
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