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Overview

Pressac sensors measure desk occupancy, presence, temperature, humidity and CO2. They’re wireless and have a long battery life. Their readings reach Nexudus through an AWS IoT endpoint. The integration is free in Nexudus. You need Pressac sensors installed — Pressac can help with purchase and setup.

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Connecting Pressac

1

Get an AWS IoT endpoint

You need one AWS IoT endpoint certificate for each location. Either contact Nexudus support and ask for certificates — the simplest option — or create your own endpoint in your AWS account (below).
2

Turn on the integration

Go to Settings → Integrations → Pressac, turn on Enable Pressac sensors integration., and select Generate shared secret. Copy the Shared secret and Data connector URL, and save.
3

Connect your Pressac gateway

In your Pressac admin panel, go to Connections → AWS IoT and enter the connection, root topic and certificates for your endpoint.
Pressac settings

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Using your own AWS IoT endpoint

To keep sensor data in your own AWS account, in the AWS IoT console create a policy allowing iot:Connect, iot:Publish and iot:Subscribe, then a thing named nexudus_ingest with an unnamed shadow and auto-renewing certificates. Download its keys and Root CA certificate, and add a message routing rule named send_to_nexudus that sends messages to your Data connector URL over HTTP. If you run several locations, use your network’s top location.
  • Sensors — all sensor integrations