Features Accurate Distance Measurement: This module utilizes ultra technology for distance readings, ensuring reliable measurements for your projects Competitively Designed: Engineered to match the performance of leading ultra modules, such as SRF05 and SRF02, providing exceptional value and reliability High Precision Performance: Achieve measurements with a minimal blind zone of just 2cm, allowing for effective tracking of nearby objects in various applications Features: 1、This module can accurately measure distance by using ultra ranging principle. 2、It can compete with foreign ultra ranging modules such as SRF05 and SRF02. 3、High precision distance measurement, super close blind zone(2cm). 4、Stable performance, high reliability. 5、This module is completely compatible with GH-311 anti-theft module. Specification: Features: This module can accurately measure distance by using ultra ranging principle. It can compete with foreign ultra ranging modules such as SRF05 and SRF02. High precision distance measurement, super close blind zone(2cm). Stable performance, high reliability. This module is completely compatible with GH-311 anti-theft module. Specification: Operating Voltage: DC5V Static Current: between2mA Level Output: High 5V, Low 0V Sensing Angle: ≤15° Detecting Distance: 2cm-450cm Accuracy: 0.3cm Wiring: VCC, trig(control terminal), echo(reception terminal), out(empty), GND Module Working Principle: 1. Adopt IO trigger through supplying at least 10us sequence of high level signal. 2. The module automatically send eight 40khz square waves and automatically detect whether receive the returning pulse signal. 3. If there is signals returning, output high level through IO, the continuance time of high level is the time of that from the ultra transmitting to receiving. Measuring distance = (high level time * sound velocity (340M/S) / 2. Package list: 5 x Ultra Ranging Module Note: 1. The module should be inserted in the circuit before power-on, which avoid producing high level of mis; If not, then power again. 2. The TRIP pin is an internal pull-up 10K resistor. Pull down the TRIP pin by the IO port of the microcontroller and give a pulse signal of 10us or more. 3. Package List