The Design of the Blackboard Dust Cleaning "Little Master" Based on the 52 Single-chip Microcomputer
A survey and study of common occupational diseases of teachers were carried out.The report shows that teachers are prone to respiratory tract,lung and other diseases in the environment of chalk dust all year round.In order to solve the problem of dust on teachers'health,a dust detection and cleaning device based on STC89C52RC single-chip microcomputer was designed.The idea of this design is to use Sharp GP2Y1014AU0F dust sensor to transmit dust concentration data to 52 single-chip microcomputer,and change the L298N motor drive by changing the pulse width of PWM[2][6](Pulse width modulation)The chip voltage reaches the rotation of the cleaning fan and the water pump simulation spray device[.Through the detection and removal function of dust,teachers can control the amount of dust inhaled to a minimum when teaching.
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