HTTP vs. MQTT

Chapter: 10 — Wireless Communication with the Pico W

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About This Poster

The chapter's comparison table lists differences between HTTP and MQTT in text — this poster shows why they differ: HTTP's direct client-server exchange versus MQTT's broker-mediated fan-out to many subscribers.

How to Use

• Explore — click a protocol to see how it moves data between devices.
• Quiz Me — test whether you can match a networking fact to the right protocol.
• Edit mode — open main.html?edit=true to drag the zone corner handles and calibrate boundaries once the poster image is generated.

Zones

1. HTTP (Request/Response) — a client directly asks a server and waits for a reply
2. MQTT (Publish/Subscribe) — a publisher sends through a broker to any number of subscribers