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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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During prototyping of our hardware products - Hoomanely EverBowl and EverHub - we leveraged the Raspberry Pi Compute Module 4 (CM4) as the embedded compute platform for early-stage development. The CM4 served as our prototyping vehicle before transitioning to Hoomanely's custom purpose-built System on Module (SOM) for production.
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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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Introduction Have you ever wondered how your pet's GPS tracker knows whether they're running, resting, or digging in the backyard? Or why sometimes the tracker seems to lose accuracy after a few weeks of use? The secret lies in a sophisticated component called an Inertial Measurement
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The Problem That Started Everything At Hoomanely, we set out to build connected pet products that could genuinely understand pet behavior and health through multiple sensors working together. Trackers needed to monitor activity, detect vocalizations, track location, and communicate over long distances. Smart bowls needed to measure food consumption with
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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
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How dual-bank architecture enables seamless, zero-downtime firmware updates via CAN Firmware updates are crucial for modern embedded systems—enabling remote device maintenance, feature additions, and security patches without physical access. This article explores a sophisticated implementation on the STM32 microcontroller, specifically the STM32H562, which features a dual-bank flash architecture that
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Implement secure BLE L2CAP CoC streaming with Flutter. Learn dynamic PSM, CoC setup on iOS/Android, and high-speed data over BLE.
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That ESP32-S3 prototype working perfectly on your desk? It'll brick itself in production. Here's the brutal checklist that separates hobbyists from engineers shipping real products. The Reality Check Nobody Talks About You've built something magical. Your ESP32-S3 prototype streams 9-axis IMU data flawlessly. The