Connectivity & IoT

Connectivity & IoT

Many studio devices need a path to a phone, a broker, or the internet. This subject is implementing one connectivity path (Wi-Fi, BLE, or MQTT over IP) with credentials handled safely, reconnection behaviour, and a payload you could explain to a teammate. Protocol vocabulary is in Communication protocols.

Starting Points

• Communication protocols
• MQTT.org. MQTT specification (overview).
• Vendor Wi-Fi / BLE guides for your board.

Key Points

• You connect a device to a network or broker and publish or subscribe to a documented topic or characteristic.
• You handle disconnect and reconnect without wedging the rest of the firmware.
• You keep secrets out of git (Wi-Fi password, tokens) and out of serial logs.
• You define a small payload schema and what happens when a message is malformed.
• You can explain the security limitations of your setup (open broker, unencrypted link) to a stakeholder.