ขาย Ultrasonic ranging module HC-SR04 ultrasonic sensor supports UNO R3/51/STM32 compatible ราคาที่ดีที่สุด

1x HCSR04 Ultrasonic Distance Measuring Module Transducer Sensor Description: - Adopts IO port trigger for at least 10us high level signal. - It can send eight 40khz square wave automatically, and detect if there is any signal returned. - If the signal returning, output one high level signal via IO port. The duration of the high level signal is the time from sending ultrasonic to returning. - Measuring distance=duration of high level x sound velocity(340m/s)/2 Specification: - Mode: HC-SR04 ultrasonic module - Working voltage: DC 5V - Static current: Less than 2mA - Output signal: Electric frequency signal, high level 5V, low level 0V - Sensor angle: No more than 15 degrees - Detection distance: 2cm ~450cm - High precision: Up to 0.3cm - Input trigger signal: 10us TTL impulse - Echo signal: output TTL PWL signal - Mode of connection: VCC; trig(T); echo(R); GND - Using Method: - A control port sends a high level above 10US to wait for a high output at the receiving port. - The output can be started by the timer. When this port become low level, it can read the value of the timer. At this time, it is the time of this distance measurement.So it can calculate the distance, you can reach the value of your mobile measurement according to such continuous cycle test Package Includes: - 1 Piece Ultrasonic Distance Measuring Module