IoT SolutionsIoT Solutions
A smart thermostat that learns how your room warms up
Notes on building an ESP32 smart thermostat that learns a room's heating rate, starts at the right time, and keeps safety control local.
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IoT Solutions
Complete IoT projects, from prototype to usable product.
Applied IoT solutions for real contexts: sensors, alerts, connected devices, field constraints, and the decisions that turn a technical idea into a working product.
IoT SolutionsIoT Solutions
mmWave Radar: Motion, Gesture, and Presence Detection
Practical notes on separating motion, gesture, and presence detection, choosing the right mmWave radar module, and building an ESP32 prototype that is easy to tune.
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IoT SolutionsIoT Solutions
LoRaWAN: Long-Range Sensor Networks
How I build a small LoRaWAN network for battery sensors, from nodes and gateways to ChirpStack, compact payloads, antenna placement, and field testing.
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IoT SolutionsIoT Solutions
Privacy-First Video Doorbell: Local Processing Design
How I design a video doorbell around RTSP, Frigate, and Home Assistant so person detection and clip storage stay inside the house instead of depending on a camera cloud.
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Smart Garden: Soil, Light and Water Monitoring
How I built a small ESP32 smart garden to monitor soil moisture, light, and water, then irrigate a few balcony plants without turning the project into a tangle of wires.
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Deep Dive: BLE Communication for IoT Devices
A practical guide to reliable BLE communication for IoT devices, covering GATT, packets, MTU, notifications, reconnection, security, and power with ESP32 NimBLE.
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IoT Security Trend: A Practical Baseline for Connected Devices
A practical IoT security guide for ESP32 and connected devices, from threat modeling and unique identity to Secure Boot, signed OTA, protected storage, and testing.
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IoT SolutionsIoT Solutions
A camera-free desk clock that indicates sleep quality
Notes for an ESP32 bedside clock that uses CO2, temperature, light, and bed presence to explain why a night felt off, without putting a camera in the bedroom.
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A fridge and freezer temperature alert device for power outages
Notes for a small ESP32 box with two DS18B20 probes and Home Assistant alerts, meant to catch a warming fridge or freezer after a power outage.
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A kitchen HMI near the fridge for meals and expiring food
Notes for a small LCD/TFT HMI mounted near the fridge, using Home Assistant to show meal plans, expiring food, and quick shopping-list actions.
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IoT SolutionsIoT Solutions
A mini 3D-printed solder fume extractor for a small desk
Build a compact fume extractor with a 120 mm fan, 3D-printed case, and ESP32-C3 for speed control, timers, and filter reminders.
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IoT SolutionsIoT Solutions
A smart medicine reminder box for older adults with phone alerts
Notes for a medicine box with lights, a quiet buzzer, RTC, and phone alerts when a scheduled dose has not been confirmed after a grace period.
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A Vietnamese voice remote for local Home Assistant control
Notes for building an ESP32-S3 voice remote with ESPHome and a local Home Assistant Assist pipeline so Vietnamese voice commands can stay inside the home network.
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IoT SolutionsIoT Solutions
A small IoT reminder to open the window when a room gets stuffy
Notes for a small ESP32 CO2 monitor on a desk, using SCD40/SCD41 to suggest opening the window when a room has stayed stuffy for too long.
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IoT SolutionsIoT Solutions
An IoT anti-mold humidity monitor for wardrobes and camera cabinets
Notes for a small ESP32 humidity monitor for wardrobes or camera cabinets, using an SHT sensor to catch high humidity that lasts too long.
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