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SeeedStudio Grove – 12-Key Capacitive I2C Touch Sensor V3 (MPR121)
€10.50
Tax included
This Grove V3 capacitive touch sensor (MPR121) features 12 independent electrodes for touch, proximity, and capacitance detection. It connects via I2C and supports cascading for expanded channel count.
The Grove - 12 Key Capacitive I2C Touch Sensor V3, based on the MPR121 integrated circuit, is a multi-channel capacitive touch sensor offering three detection modes: capacitance measurement, touch sensing, and proximity sensing.
This module features 12 independent electrodes with built-in autoconfiguration. Thanks to the I2C interface, you can query all keys via a single Grove port. The I2C address is hardware-configurable (0x5B to 0x5D), allowing multiple sensors to be daisy-chained to expand the system up to 36 electrodes.
Specifications
- Main Chip: MPR121 (NXP/Freescale)
- Electrodes: 12 (8 multifunctional for GPIO/LED driving)
- Interface: I2C (configurable address: 0x5B, 0x5C, 0x5D)
- Operating Voltage: 3.3 V / 5 V
- Capacitance Range: 10 pF to > 2000 pF
- Resolution: 0.01 pF
- Interrupt Output: IRQ (state change alert)
- Operating Temperature: -40 °C to +85 °C
- Weight: 11 g
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This Grove V3 capacitive touch sensor (MPR121) features 12 independent electrodes for touch, proximity, and capacitance detection. It connects via I2C and supports cascading for expanded channel count.