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Introduction Imagine a pet healthcare system that can detect subtle changes in your pet's gait, identify early signs of skin conditions, monitor breathing patterns during sleep, or track behavioral changes that signal discomfort — all through intelligent vision processing happening at the edge. This isn't science fiction.
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Introduction Linux powers everything from routers and EV chargers to drones, cameras, industrial machines, and the modern edge-AI stack. But behind every peripheral that "just works" lies a device driver — the thin layer of software that lets hardware talk to the Linux kernel. For new embedded engineers, Linux
In the world of IoT devices, particularly in pet health monitoring systems, reliable wireless connectivity isn't just a nice-to-have—it's mission-critical. When your device needs to simultaneously stream real-time health data over Wi-Fi while maintaining BLE connections to multiple sensors, the challenge of wireless coexistence becomes
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When working with STM32 microcontrollers and external memory configurations, few things are more frustrating than STM32CubeProgrammer failing to recognize your carefully crafted external memory loader. We encountered exactly this issue—and the solution revealed fascinating insights into how STM32's toolchain parses external memory loader files. This post chronicles
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Real-world lessons from transitioning parallel to serial camera architectures in production embedded systems Imagine this: an industrial vision system built around a high-performance MCU and a 1 MP camera using the traditional parallel interface (DCMI). It worked—until you added thermal sensors, proximity modules, and wireless connectivity to the same
In modern embedded systems—whether high-speed vision sensors, multi-channel audio acquisition, or edge ML inferencing—throughput and latency matter. When you run a full-blown embedded Linux platform yet also need real-time data processing, simple threading isn’t enough. You must structure threads, pick the right scheduling policies, bind threads to
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In every real-time embedded system, interrupts are where the action begins. Whether it’s a camera sensor signaling a frame ready, a CAN packet arriving, or a GPIO line pulsing high, the first code to run is almost always the Interrupt Service Routine (ISR). But ISRs should be fast, lightweight,
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Building a production-ready camera system with 45 MB/s sustained throughput Direct Memory Access (DMA) promises zero-CPU data transfers, but poor buffer design can turn that promise into corrupted frames, system crashes, and unpredictable behavior. This post shares hard-won lessons from building Hoomanely's camera module—a dual-sensor system
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Storage wear & tear — practical engineering guide from Ever-bowl’s memory pipeline This post explains how the Ever-bowl platform uses PSRAM as a buffer and a flash-aware firmware stack to extend flash lifetime. It includes concrete implementation pitfalls and solutions, datasheet-backed guidance, and a practical checklist for engineers building similar
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A Guide to CAN Controllers, Transceivers, and Bus Configuration Introduction When our team at Hoomanely began developing iot devices for building a pet environment platform, we faced a critical challenge: transmitting high-resolution sensor data between multiple ECUs with microsecond-level timing precision were We needed CAN FD. But here's