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Infineon’s PSOC 4 series microcontrollers now integrate capacitive, inductive, and liquid level sensing in a single device. The PSOC 4000T, powered by a 32-bit, 48-MHz Arm Cortex-M0+ processor, combines CAPSENSE capacitive sensing with Multi-Sense inductive sensing and non-invasive, non-contact liquid sensing.

Infineon says Multi-Sense inductive sensing offers greater noise immunity and durability than existing methods. Its differential, ratio-metric architecture supports new HMI and sensing applications, including touch-over-metal, force touch, and proximity sensing.

The PSOC 4000T’s liquid sensing uses an AI/ML-based algorithm that Infineon says is more cost-effective and accurate than mechanical sensors and standard capacitive solutions. It resists environmental factors like temperature and humidity and detects liquid levels with up to 10-bit resolution. It also rejects foam and residue and operates across varying air gaps between the sensor and container.

The fifth-generation CAPSENSE technology enables hover touch sensing, allowing interaction without direct button contact. Its always-on capability reduces power consumption by 10× while delivering 10× higher signal-to-noise ratio than Infineon’s previous devices.

The PSOC 4000T with CAPSENSE and Multi-Sense is available now. A second device, the PSOC 4100T Plus, offering more memory and I/Os, will gain Multi-Sense support in 2Q 2025.

PSOC 4000T product page

Infineon Technologies

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