This Microchip Technology demo frames a rain-triggered greenhouse roof as a clean embedded control problem: a wet event becomes a motor move, with a touch UI as a human override. A SAM E54 (ARM Cortex-M4) acts as the central controller, taking inputs from a dedicated liquid-detection device and a separate touch interface MCU, then commanding a stepper stage that opens the roof for natural watering. https://www.microchip.com/
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On the sensing side, the MTCH910 is presented as Microchip’s first liquid-detection ASSP: it encapsulates the detection firmware so the application can treat “rain detected” as a simple signal instead of tuning analog thresholds, filters, and edge cases from scratch. That event is forwarded to the SAM E54, which turns it into an actuator command, keeping timing and safety logic in one place while the roof motion remains predictable.
For manual control, a PIC32CM “MGC” device is used as the touch controller together with a QT7 Xplained Pro board, so a user can set a partial roof opening by tapping and sliding on the panel. Architecturally it’s a familiar IoT pattern: a sensor front end, a UI processor, a main MCU, and a motor driver, each doing one job and communicating through a narrow interface.
The stated purpose is toolchain flexibility rather than the prop itself: the main controller firmware is shown as developed in Zephyr, while the touch firmware uses MPLAB tooling via VS Code extensions and a touch library. In real products, subsystems are often written years apart and by different teams, so being able to mix RTOS builds, vendor SDKs, and minimal-firmware peripherals is a practical advantage for long-lived device software.
Microchip also teases an MPLAB AI Coding Assistant that runs inside VS Code: a datasheet-parsing agent that can answer targeted questions (like how an ADC works) and help you jump to the right register diagrams or tables faster. A newer “agent mode” is described as reading MCC-generated source and APIs, then drafting the application glue code so you can move from GUI-based peripheral configuration to a working main loop with fewer manual edits. The same VS Code extension bundle also exposes MPLAB Code Configurator, a peripheral GUI that writes the low-level register setup for you and generates drivers, plus a data visualizer for inspecting runtime signals; the AI assistant is currently VS Code only and is shown with an early free-token model. Filmed at Embedded World North America 2025, it’s a quick snapshot of how modern MCU development is drifting toward generated HAL code, searchable documentation, and agent-assisted bring-up in one workflow.
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