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docs: README

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Tony Yang 2023-04-30 18:48:49 +08:00
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# cloudprog-hw4
Team 02
## Features
- `lambda-gen-s3-url.py`: AWS Lambda function that generates S3 presigned URL for IoT thing to upload.
- Envs:
- `MQTT_TOPIC`: `S3_URL_TOPIC`
- `BUCKET`: S3 bucket to upload
- `lambda-detect-face.py`: AWS Lambda function that calls rekognition API tiggered by S3 events.
- Envs:
- `MQTT_TOPIC`: `LED_TOPIC`
- `led_control.py`: Code run on IoT thing.
- Controls the LED with MQTT topic.
- Take picture and upload it to S3.
- Send upload request via MQTT topic `S3_UPLOAD_TOPIC`
- Get presigned URL via `S3_URL_TOPIC`