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OPEN-SMART Ultrasonic Sensor Module + 4-Digit Display for Arduino
About Ultrasonic Range Sensor module: - This performance of the ultrasonic sensor distance measuring module is stable£¬ measure the distance accurately. The module is with High precision£¬ blind spots (3cm) super close. This module provides a full set of ranging process. - Arduino library ready: HCSR04Ultrasonic - Model: HC-SR04P - Operating voltage: 3~5.5VDC - Static current: Less than 2mA. - IO logic voltage: 5V. - Sensor angle: Not more than 15 degrees. - Detection distance: 3cm~400cm. - Accuracy: 3mm - Adopt IO trigger through supplying at least 10us sequence of high level signal - The module automatically send eight 40khz square wave and automatically detect whether receive the returning pulse signal - If there is signals returning£¬ through outputting high level and the time of high level continuing is the time of that from the ultrasonic transmitting to receiving. About 4-Digit Display module - The module is based on a decimal point display module£¬ it displays four digital tube (0.36 inches)£¬ only two signal lines can make MCU control four Digit 8-segment LED. Can be used to display decimal£¬ letters and so on. - Can display the measuring distance by the ultrasonic range module. - 8 class adjustable brightness - Operating voltage: 3.3-5.25V - IO logic voltage: 3.3V or 5V