Ultrasonic HC-SR04 Distance Sensor Module
$2.18
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Specifications 4 pins Power supply: 5V DC Static current: 2mA Sensor angle: 15 to 35 degrees Sensing distance: 0.75in (2cm) to 13ft (4m) More precise measurements with ranges up to 6.5ft (2m) away Precision: up to 0.12in (0.3cm) Resources HC-SR04 Arduino Library and example sketches (Arduino Playground) Simple Arduino and HC-SR04 Example (Instructables) HC-SR04 Energia Example (from Frank Milburn)
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