There are currently a variety of air compressor from large, Small and medium-sized waste has resulted in the use of the space, such as air compressor. Unable to show how much the wind while further wind and wind quantity cannot be verified at the wheel. Created with the purpose to find out how to conserve energy used to populate the wind, Study on the method of reducing electric energy loss, To research developing new small wind pump is controlled by a microcontroller in order to meet the needs of users in energy-saving with actions and have tried to improve it by using. And then into the circuit of input voltages are converted into micro-call icon color. Writing a driver to pick up the required pressure. Compared to the values measured voltage signal can be sent. Output Can reduce electric energy loss in an air compressor. 15 percent, and it can control wind pressure works correctly with only a 1 percent error.50 thus, small air compressor is controlled by a microcontroller that research development created works based on purpose and sommutithan that is set correctly.
Keywords: wind pressure sensor, microcontroller PIC 16F877, Buffer circuit 74LS138, DC circuits, motor cycle, 74LS47 buffer power supply, relay, circuit 7-Segment
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