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ESP32 FDAS Remote Annunciator: wiki

A supplementary remote annunciator for a fire alarm (FDAS) panel. An ESP32 input module reads the panel's zone relay contacts and reports zone states through AWS IoT Core to a web app. It is not a life-safety device: the fire panel remains the alarm system.

Guides

• AWS IoT Device Enrollment (by hand): how a board gets its identity, certificate and permissions in AWS IoT Core, and how it connects. Every step uses the AWS CLI and openssl.

In the repository

• README: overview, deploying, and the AWS running cost.
• docs/mqtt-contract.md: what the board publishes, and the safety rules every consumer follows.
• infra/iot-input-device.yaml: CloudFormation for a board's AWS IoT identity.