Hobby or Professional?
Both tracks start from the same idea: a connector is a controlled interface. The split comes down to what happens when it fails, where it lives, and who has to build or fix it. If the quick check on the homepage didn't settle it, use this table.
| Situation | Use hobby guide | Use professional guide |
|---|---|---|
| Breadboard/dev-board experiment | Yes | Optional |
| One-off desk project | Yes | Optional |
| Student lab project | Yes | Optional |
| LED decoration | Yes | Maybe |
| High-current LED installation | Maybe | Yes |
| Outdoor sensor | Maybe | Yes |
| Robot exposed to vibration | Maybe | Yes |
| Product for someone else | No | Yes |
| Customer-facing hardware | No | Yes |
| Safety-critical hardware | No | Yes |
| Harness drawing required | No | Yes |
| Inspection/acceptance required | No | Yes |
| Qualification/standard required | No | Yes |
note
The boundary isn't whether the connector looks “professional.” It's the consequence of failure, the environment, the documentation burden, and whether somebody other than you has to build or maintain it.
Two useful rules fall out of that:
- Judge one interface at a time. A robot's I2C sensor cluster can stay on the hobby track while its battery connection and external cabling graduate. See When Hobby Connectors Are Not Enough.
- “Maybe” usually means hobby parts with engineering discipline. An outdoor LED decoration can keep hobby-class connectors if you do the real work—current calculation, sealing, strain relief, and a failure check—from the selection workflow or the rugged-on-a-budget path.
Start pages: Hobby Connector Field Guide · Professional / Industrial Connector Field Guide.