automatic rain operated wiper ppt

[jaseela123d]

Automatic wiper system in luxury cars where the windscreen wiper is automatically activated when there is rain or if there is some water in the windshield. Electronic Wiper is a very common device that is attached in every car to clean the water on the windshield during rain. But they are usually operated manually and we have to change them manually. But today we will build automatic car wiper rain detection system with 555 Timer IC. This circuit automatically detects the rain and activates the windscreen wiper to clean the windshield.


Required Components:

• 555 IC Timer
  
• L293D
  
• IC LM358
  
• Transistor BC557
  
• Resistors (1K, 10K, 2.2M)
  
• Condensers (0.01uf, 0.47uf)
  
• DC motor
  
• Rain sensor
  
• Power supply (5-12v)
  

Circuit diagram