Temperature and Humidity Sensor Node Design
Thought for 1 min 31 sec
Yes — C5 should stay in the decoupling network.
Why:
- In the current schematic, C5 is a 100 nF capacitor connected directly from U3 VDD to GND, and its role is already tagged as “Decoupling for HDC3020 VDD pin.”
- That matches standard local bypass practice for IC supplies: 100 nF MLCC is the normal value for a local decoupling capacitor
Move C5 out of the vague “sensor power and decoupling” bucket and call it out explicitly as:
Sensor local decoupling
- C5 — 100 nF local bypass capacitor for U3, connected from VDD to GND
- Keep it physically close to U3, since decoupling caps should stay near the IC they support; supporting components should move with their IC during placement
Table
- Keep C5 in the decoupling list
- Treat it specifically as U3’s local supply bypass capacitor
- It is not optional if you want a complete, sensible sensor supply network
If you want, I can now rewrite the entire add-and-wire list into one cleaned-up final version with no ambiguities.
Check C5 role
Update decoupling list
Show C5 connections
