• 51 SCM HC-SR04 Ultrasonic Range Finder Digital Tube Vehicle Collision Avoidance System Board

51 SCM HC-SR04 Ultrasonic Range Finder Digital Tube Vehicle Collision Avoidance System Board

Availability: In stock, usually dispatched in 1 business day

  • Price:$18.45
  • Price in reward points: 185 Reward Points: 2
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    Price /Unit $18.08 $17.71 $17.16 $16.42 Contact US
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51 SCM HC-SR04 Ultrasonic Range Finder Digital Tube Vehicle Collision Avoidance System Board

Description:

51 SCM + HC-SR04 ultrasonic sensor+ digital tube display+key+buzzer

Specification:    
- SCM: STC89C52
- Can set slsrm distance
- Buzzer will alarm when the actual distance less than the setting distance
- Measuring range: 2-5cm
- Power: USB

Working principle of the module:
- IO trigger to measure range, high level signal for at least 10 us;
- Module automatically sent eight 40 KHZ square waves, automatically detect whether there is a signal
Return;
- Have returned signal, through the IO output high level,the duration of the high level is the time the ultrasonic wave is emitted from the return.

Package List:
- 1 x Ultrasonic Range Finder board
 

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