HC-SR04 Ultrasonic Sensor Distance Measuring Module + 4-Digit Display Module for Arduino

Highlights

• About Ultrasonic Range Sensor module:
• Adopt IO trigger through supplying at least 10us sequence of high level signal
• The module automatically sends 8 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
• Ultrasonic sensor distance measuring module enjoys stable performance, measuring the distance accurately. With high precision, blind spots (3cm) super close, this module provides a full set of ranging process.
• About 4-Digit Display module:
• Can display the measuring distance by the ultrasonic range module
• 8 class adjustable brightness
• Based on a decimal point display module, The module displays 4 digital tube (0.56 inches), only 2 signal lines can make MCU control four Digit 8-segment LED. Can be used to display decimal, letters and so on.

Specification