Node-RED: Details of the IoT device

This documentation is part of the Use case: connect mailboxes guide. View the full guide here: Seamlessly connect hundreds of mailboxes in a post office.

Welcome to the Stackhero documentation

Stackhero provides a fully managed Node-RED cloud environment designed to get you building workflows quickly:

• Built-in MQTT server (Mosquitto) for seamless IoT integration.
• Full access to the Node-RED admin UI for managing flows and settings.
• Node-RED Dashboard included for real-time visualization.
• Dedicated SMTP email server included, with no limits on sending.
• Effortless one-click updates to keep your instance current.
• Custom domain names with automatic HTTPS: for example, https://node-red.your-company.com.
• High performance and strong security with private, dedicated infrastructure.

You can have a secure, production-ready Node-RED cloud hosting instance running in about 5 minutes. Stackhero handles setup, updates, and infrastructure so you can focus on building automations.

The IoT device is elegantly simple. It is a compact black box, powered via USB, that incorporates a button and a red light. There is one device assigned to each mailbox.

When mail is received at the reception desk, it is placed into the corresponding mailbox, and the operator presses the button. The red light blinks for 15 seconds. If the operator presses the button again within this period, the notification is canceled. If no action is taken within these 15 seconds, an email notification is dispatched to the customer.