pir motion sensor的相關文章
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PIR Sensor (Rev B) | 555-28027 | Parallax Inc
瀏覽：1233
日期：2025-05-07
The PIR Sensor detects motion by measuring changes in the infrared (heat) levels emitted by surrounding objects. When motion is detected the PIR sensor outputs a high signal on its output pin. NOTE: The product information found on this page currently per...看更多
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