Automation, sensing and robotics • Re: Raspberry Pi 4B pinout expansion, relays controller and voltage detector.

For temperature sensing, it's always a DS18B20.

A relay is a relay. Buy a relay module with 3.3V trigger.

For ac, an optoisolator module. Make sure it's housed safely.

Statistics: Posted by ame — Fri Sep 20, 2024 6:40 am

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