Propeller LED display
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Thông tin tài liệu:
Sensor used in this project is MOC 7811 fromMotorola. This is a slotted coupler/interrupter device.In each revolution as the beam is interrupted,the sensor generates a positive pulse. Microcontrollerwill execute interrupt routine, When a pulse occurs.Interrupt routine measures the total time taken for onerevolution, divides it by 120, and stores the result into anothertimer,Configured in auto-reload mode.Now, the timer overflows after tiny intervals of time. Each time itoverflows, next stored value is called from the lookup table,and displayed....
Nội dung trích xuất từ tài liệu:
Propeller LED display
Nội dung trích xuất từ tài liệu:
Propeller LED display
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