10/10/2025 5:04 am
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I need to pick one interface before finalizing my PCB and firmware. Short on‑board sensor links; priorities are minimal pins, low power, and reliable data. Which would you choose and why?
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11/10/2025 5:32 am
I²C is the best single interface choice for on-board sensors when the priorities are minimal pins, low power, and reliable data.
It uses just two shared wires, is supported by a wide range of low-power sensors, and enables software power-down strategies; address conflicts and pull-up sizing are the main practical considerations, both of which have straightforward hardware or firmware workarounds.
If desired, a follow-up reply can include example pull-up values, suggested load-switch parts for power gating, or a short checklist to confirm sensor address and sleep capability before PCB finalization.
