Firmware
Adaptive sampling turns your wearable into a system that feels alive—delivering the right data at the right moment while preserving battery for when it matters. Instead of locking sensor rates in firmware, we set behavior at the app layer with a small, transparent policy engine. The device advertises capabilities;
Software
Your sensors never sleep. An IMU chirps at 100–200 Hz, a load cell hums at 10–100 Hz, a microphone races at kilohertz. The instant you do real work—FIR/IIR filtering, debouncing, feature extraction—on the main isolate, your once-silky Flutter UI starts to stutter. The jank isn’
Firmware
Networks misbehave in the real world. BLE links jitter, Wi-Fi bursts collide, buffers overflow, and low-power sensors occasionally flip a bit. The worst part isn’t the packet loss—it’s the visible glitch your user sees: a frozen chart, a jumpy graph, or a dropped audio blip. This post
Software
Real‑time telemetry is the heartbeat of connected products. When the stream looks smooth, teams ship with confidence; when it stutters, trust erodes fast. The silent killers aren’t exotic algorithms—they’re everyday mistakes: rendering on every message, letting arrays grow forever, and forgetting to tear down listeners during
Software
Cross-platform apps move fast—until native features start leaking into product code. BLE streaming, notifications, file access, analytics: all must behave consistently across iOS and Android without tangling UI logic with platform quirks or slowing tests to a crawl. Our current setup uses direct native bridges from a view-model into
Firmware
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
Hardware
Building a tracker with Wi-Fi, Bluetooth, LoRa, and GPS doesn’t have to mean living on a charger. In this write-up, I’ll walk through the exact moves that took our ESP32-S3 design from “dies by dinner” to “runs for weeks”—from hunting down sneaky “always-on” leaks to letting each
Software
When Disconnects Become the Norm Bluetooth Low Energy links don't fail in the lab—they fail in the real world. Phones roam between rooms, radios get noisy, apps are backgrounded, and peripherals reboot at the worst possible moment. After shipping connected devices at scale, I've learned
Firmware
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