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Ultrasonic Distance Sensor - 3V or 5V - HC-SR04 compatible [RCWL-1601] : ID 4007 : $3.95 : Adafruit Industries, Unique & fun DIY electronics and kits
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HC-SR04 (US-025) CS100 (3.3V-5V) Ultrasonic Distance Measuring Sensor Module - ขาย Arduino อุปกรณ์ฯ ,ESR meter 18650 : Inspired by LnwShop.com
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Ultraschall Modul HC-SR04 Entfernungsmesser, Distanzmessmodul Sensor für Raspberry Pi und Arduino : Amazon.de: Gewerbe, Industrie & Wissenschaft
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HC-SR04 3.3V-5V Ultrasonic Distance Measuring Sensor Module (Trig-Echo) ,UART(TX-RX), I2C(SDA,SCL) - ขาย Arduino อุปกรณ์ฯ ,ESR meter 18650 : Inspired by LnwShop.com
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3.3V Mod for Ultrasonic Sensors (prepare HC-SR04 for 3.3V Logic on ESP32/ESP8266, Particle Photon, Etc.) : 4 Steps - Instructables
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