Abstract :
In general, the people drying the betel nuts are still done manually by opening and
closing the areca nut drying place, if drying the betel nuts will spend a lot of time to keep
betel nuts when dried in the daytime because they are worried about rain. Now
technological advances have developed and can make betel drying using the LDR sensor
(light dependent resistor), rain sensor, Arduino as a microcontroller, the driver as the
motor speed and direction of rotation and the gearbox motor as a driving place for the
areca nut drying. The result of the design of this tool is when the morning and the light
dependent resistor (LDR) sensor is detected the light will move the clockwise to remove
the areca nut drying place for 8,28 seconds and limit switch 2 to turn off the motor, when
the rain sensor detects rain in the afternoon the motor will move counter-clockwise to
enter the betel nut for 8,28 seconds and the limit switch 1 is active to turn off the motor
and incandescent lights will live to heat areca nut during the day, when the rain sensor
no longer detects rain then the motor will move in the same direction clockwise to remove
the areca nut again for 8,28 seconds and the limit switch 2 is active to turn off the motor,
if it is night or the light dependent resistor (LDR) sensor no longer detects light, the
motor will move counter-clockwise to enter the areca nut during 8,28 seconds and limit
switch 1 active to turn off motor.