Capacitive, inductive and efficient: Rutronik presents the PSOC™ 4000T with Infineon CAPSENSE™ technology

Rutronik expands its microcontroller portfolio with the Infineon PSOC™ 4000T. This new product adds advanced HMI capabilities to Infineon’s 0 MHz Arm® Cortex®-M48+-based microcontroller family. The MCUs combine capacitive, inductive, and liquid sensing in a single device. Developers benefit from increased design flexibility, improved power efficiency, and new possibilities for touch and level sensing applications, even in harsh environments. The PSOC™ 4000T series and other Infineon products are available at www.rutronik24.com.

With this expansion of the PSOC™ 4 family, Infineon integrates multi-sensor capabilities into a single microcontroller, including the latest generation of CAPSENSE™, patented inductive sensing, and advanced liquid sensing with AI-based signal processing. The new platform enables capacitive, inductive, and liquid sensing with a single device, making it ideal for modern, compact, and rugged designs. The integration of features such as Hover Touch and Touch-over-Metal reduces hardware complexity, while the fifth generation of CAPSENSE™ with always-on technology reduces power consumption tenfold.

The associated PSOC™ 4000T Multi-Sensor Prototyping Kit, the CY8CPROTO‑040T‑MS, enables rapid and modular evaluation of capacitive, inductive, and contactless sensor technology based on Infineon’s fifth generation CAPSENSE™ technology. Combining a low-power architecture, versatile sensor support, and seamless integration with ModusToolbox™, the kit is ideal for developing energy-efficient HMI and IoT applications. Developers benefit from a flexible prototyping environment that significantly accelerates the validation of innovative user interfaces. The evaluation kit is divided into several daughterboards and a control board: The daughterboards consist of two on-metal touch boards, an FPC for level measurement with container, and a Hover Touch with multiple buttons.

Summary of benefits:

• 32-bit MCU subsystemUp to 64KB flash memory with read accelerator
  – Up to 8 KB of SRAM
  – 16 sensor inputs
• Up to 16 autocapacitive inputs
  – Up to 64 mutual capacitive inputs
  – Up to 8 inductive inputs
  – Up to 21 programmable pins
• Two 16-bit TCPWM blocks
• Two configurable serial communication blocks (SCB) compatible with I²C, SPI or UART interfaces
• Working voltage: 1,71 V to 5,5 V
• Deep sleep mode at 6 µA using always-on detection
• Active touch detection and tracking at 200 µA (average)
• AI/ML-based liquid detection with up to 10-bit resolution
• Floating touch function for contactless entry
• Software and package compatible with existing PSOC™ 4 designs

Application examples:

• Appliances and sanitary ware:
  – Robust touch interfaces on metal or underwater (e.g., wearables, kitchen appliances)
  – Monitoring liquids in household appliances (e.g., washing machines, automatic coffee machines)
  – Touch control panels (e.g., hobs, medical devices)
  – Energy-efficient and always-on applications (e.g., IoT sensors, smart homes)
  – Combined HMI and sensor systems with a reduced number of components
• Building security systems
• Industrial equipment

For more information about Infineon's PSOC™4000T and the direct order option, please visit our e-commerce platform at www.rutronik24.com.