Overview
A Wi-Fi and BLE enabled compute platform designed for secure IoT sensor aggregation and edge intelligence applications in environments with intermittent connectivity.
- Configurable analogue input front-end, digital I/O, and I2C/SPI sensor buses.
- RF-optimised design with an external SMA antenna interface and low-loss feed network.
- Dual-source power management (primary cell or solar harvesting) with load shedding.
- TLS-encrypted MQTT transport and local data buffering to prevent connection loss.
- BLE-based configuration workflow for secure, zero-touch device provisioning.
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Challenge
Securing remote edge nodes against firmware extraction and unauthorized network joining in high-density sensor grids.
Solution
Utilized ESP32-S3 hardware encryption features, flash encryption, Secure Boot V2, and a hardware secure element.
Outcome
Delivered a zero-touch provisioning workflow allowing nodes to securely connect to AWS IoT Core out of the box.