Published June 2024 | Version v1
Journal article Open

DEVELOPMENT OF AN AUTOMATIC ELECTRIC FAN

Authors/Creators

  • 1. ROR icon University of Eastern Philippines

Description

This study aimed to develop an automatic electric fan using a microcontroller, PIR sensor, DHT22 sensor, relays and LCD. An experimental design was employed to evaluate the performance of the system in terms of automatic switching on/off, automatic changing in speed level, automatic temperature and relative humidity monitoring, effective distance and sensitive time of detection of the system. Findings revealed that the electric fan automatically turned on/off when the user is detected and not detected, respectively, the speed level of the electric fan changes with respect to the speed level thresholds using various simulations, and the system successfully monitored the ambient temperature of the room. Another finding revealed that the minimum effective detection distance of the sensor is around one meter with a corresponding time sensitivity of 1.4 seconds, and the maximum effective distance is around six meters with a corresponding time sensitivity of 4.2 seconds. The longer the distance of the user from the sensor, the longer it takes also to be detected. Thus, the study performed a more convenient to users as the electric fan don’t need a manual intervention with additional feature of real-time temperature monitoring.

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References

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