Technology small production small invention ultrasonic induction fan manual DIY material
Product Description :
Product Name: TM-191-ultrasonic induction fan
1. Understand the principle of ranging of ultrasonic sensors.
2. Master the use of ultrasonic sensors by making automatic induction fans.
3. Experience the magic of automated control by making an automatic induction fan.
As long as the ultrasonic sensor module senses any object in front of the fan, it will automatically blow. After the object leaves, the fan stops. It is really amazing!
HC-SR04 ultrasonic sensor knowledge popularization:
It is to perform ranging, based on the sonar principle, to detect the distance between the sensor and the target object by detecting the time difference between the transmitted ultrasonic wave and its echo. Its performance is relatively stable, the measurement distance is accurate, and the blind zone is 2CM. When using it, plug it in the Arduino board and power it on.
As different computer display the colors differently,and the color maybe is little difference from the actual items,but we can guarantee the style is same,but maybe some not same performance on different bodies as on the models.Hope you can understand it.thank you！
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