ModuleHC-SR04 Ultrasonic Sensor Module 3.3V 5V
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- Product 5/6
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1 the module performance is stable, measurement distance is accurate. It is good for SRF05, SRF02 ultrasonic ranging module. Module is high precision, the blind (2cm) super close.
2 main technical parameters
1) usage voltage: DC5V
2) static current: less than 2mA
3) level output: 5V
4) high level output: 0V
5) induction angle: not more than 15 degrees
6) detection range: 2cm-450cm
7) high accuracy 0.2cm
Connection mode: VCC, trig (control side), echo (receiver), GND
3 operating principle
(1) used for IO trigger range, high level signal to at least 10us
(2) module automatically sends 8 pieces of 40KHz square wave, automatic detecting whether a signal return
(3) return signal, outputs a high level through IO, high level duration is
Ultrasonic from launch to return time. Test distance = (high level time * speed of sound (340M/S)) /2;
This module provides a full set of ranging program: C51, PIC18F877, ultrasonic LCD1602 display, ultrasonic LCD12864 display, digital tube display, serial display, measuring reference program
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