Microchip presents a 32-bit Arm Cortex-M0+ microcontroller platform with dual CAN interfaces and integrated touch control, aimed at compact motor-control nodes in automotive and industrial systems. In the demo, a single MCU drives two brushless fans over separate CAN channels while simultaneously handling capacitive touch input and a small display, illustrating how communication, control and HMI can be consolidated on one device. The design is representative of devices in the SAM C21 / PIC32CM JH families with 5V support, CAN-FD and a Peripheral Touch Controller (PTC). https://www.microchip.com/en-us/products/microcontrollers-and-microprocessors/32-bit-mcus/pic32-sam/pic32cm-jh
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Using dual CAN from a 48 MHz Cortex-M0+ core, the board shows both synchronized and independent control of the two fans. This maps directly to use cases like automotive HVAC, where separate in-cabin blowers or zonal climate-control actuators share the same CAN backbone but need different speed profiles, as well as industrial cabinets where multiple motors or pumps are coordinated on a common fieldbus. The same architecture scales to CAN-FD networks, gateway nodes and mixed LIN/CAN topologies while maintaining deterministic motor-control loops.
The on-chip Peripheral Touch Controller replaces external touch controllers by implementing mutual and self-capacitance sensing, supporting buttons, sliders and simple gesture surfaces on the same MCU that closes the control loop. This enables sealed front panels and moisture-tolerant HMIs, which are important in vehicles, white goods and factory equipment. Running from a 5V supply with robust analog front ends and noise-tolerant PTC hardware, these parts are optimized for electrically noisy environments typical of engine bays or industrial drives, and can be integrated with RTOS or bare-metal firmware through MPLAB libraries.
Recorded at the SPS 2025 exhibition in Nuremberg, the interview also highlights the practical development flow around Microchip’s evaluation boards, including Curiosity-class kits targeting PIC32CM JH and related SAM families. Engineers can prototype dual-CAN motor-control nodes with touch and display on a single board, then migrate directly into automotive-qualified or industrial-grade variants with extended flash, RAM and functional-safety features such as ECC memory and diagnostic peripherals, reusing the same software stack from lab demo to series production.
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