Comments: PIR Motion Sensor Hookup Guide
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Connected to Arduino board works! But when I'm connecting to a Raspberry Pi, it works, but gives a very noisy reads (frequently switch between hi and low reads, regardless of movement). What am I doing wrong? I'm using the same connection as with the Arduino. Is there something else needed when Raspberry Pi?
Edit: figured it out, need to do "pull up" on the GPIO pin. I'm just a noob, but from what I read, it's related to 5v and 3v3.
Your circuit diagram shows the PIR connected directly to the redboard. If I wanted to connect this to the breadboard instead, what would that look like? Would I need to use a resistor on the breadboard, or could I continue to use the internal pull-up resistor on the redboard?