AWS IoT Greengrass on Raspberry Pi: When It Actually Makes Sense

Edge computing is often overused. But in some cases, it's essential.

What Greengrass does

AWS IoT Greengrass allows Raspberry Pi devices to:

• Process data locally
• Run workloads without constant cloud connection
• Sync with AWS when connectivity is available

When edge is worth it

Edge processing makes sense when:

1. Connectivity is unreliable

Devices can't depend on always being online.

2. Latency matters

You need real-time decisions locally.

3. Data volumes are high

Filtering locally reduces cloud cost.

4. Systems need autonomy

Operations must continue even if disconnected.

When it doesn't

You probably don't need Greengrass if:

• Connectivity is stable
• Workloads are simple
• Latency isn't critical

Adding it too early creates unnecessary complexity.

The practical approach

Start cloud-first. Introduce edge only when:

• A real constraint appears
• The benefit is clear

Final thought

Edge isn't about replacing the cloud. It's about making systems work in real-world environments.