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Smart HomeRobotics & Drones
Visionary IoT
Edge AI Camera powered by ESP32-S3-EYE
Low-power Wi-Fi camera with local face detection.
Battery Life
30+ Days
Inference Latency
<150ms
Visionary IoT
Plan A — Quick Facts
SoC
ESP32-S3 (Xtensa LX7)
Vision Sensor
OmniVision OV2640 (2MP)
Power Profile
<10uA Deep Sleep
Inference Engine
ESP-DL MobileNetV2
Client
A smart home security brand needing a low-cost, battery-operated camera for package detection.
Challenge
Running human and package detection models entirely on the edge while operating on AA batteries for over 6 months.
Product Concept & Architecture
We utilized the ESP32-S3-EYE reference design, featuring the ESP32-S3 paired with an OV2640 2MP sensor. The system relies heavily on a PIR sensor to wake the main MCU.
Engineering Solution
The device spends 99% of its life in deep sleep (consuming <10uA). Upon PIR trigger, the ESP32-S3 wakes up in under 300ms, captures an image, and runs a quantized MobileNetV2 model using ESP-DL. If a human or package is detected, it connects to Wi-Fi to send an MQTT alert; otherwise, it immediately returns to sleep.
Result
6-month battery life on 4x AA batteries. Edge inference completes in 400ms. False positive rate reduced by 85% compared to pure PIR systems.
Project Profile
Services Delivered
Hardware DesignEmbedded Software
Core Technologies
Wi-Fi/BluetoothTinyMLRTOS
Silicon & Vendors
EspressifJieliZhongke Lanxun
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