Abstract:
Fan is an electronic device which has function to produce wind. In general, fan still
using manual system that need push button provided by manufacturer. By controlling fan
using this manual system, it requires the operator to change speed of the fan. Therefore it is
necessary to control the speed of the fan automatically. The automatic control used
microcontroller with fuzzy logic method. By utilizing this method, we can adjust condition
of the fan according to the value of two temperature sensors that will become fuzzy logic
input. The result are obtained when the input fuzzy temperature 1 equals 30,74oC and
temperature 2 equals 29,77oC, then output fuzzy it in the range 0-100% is 72.30% the result
is mapped into PWM as input dimmer circuit. Then the PWM determined the speed of fan,
and within 10 minutes if the PIR sensor did not detect any movement the fan will turned off
until it detect any movement again.
