Creating and Finding Efficiency of Portable Multipurpose Hand Wash Basin

Abstract

The objectives of this research were to: 1) construct a multipurpose portable hand wash basin, 2) find the efficiency of the multipurpose portable hand wash basin, and 3) study the users' satisfaction towards the multipurpose portable hand wash basin. The sample group consisted of 7 students and the students who were inventors of Songkhla Technical College in the academic year 2022 including 3 teachers in the Electrical Power Department with the total of 10 participants. The data were collected from the research tools, i.e., the multipurpose portable hand wash basin, a quality assessment form, and questionnaires for users' satisfaction analyzed by percentage and average. The efficiency test of the multipurpose portable hand wash basin shows that it operates from the system set as defined by the multipurpose portable hand wash basin programmed in 2 Arduino Uno boards which controls the release of a faucet water and tissues and on-off the lights at night. An Arduino Nano board controls opening and closure of a trash can. The upper part is installed with a 50-W solar panel LED light placed under the roof frame. The sensor controls the light operation when there is no sunlight at night. The front part consists of a set of a hand-soap dispenser, a faucet, a tissue dispenser, and a trash bin with a mirror on the wall. All devices work under the object detection sensor of which the program was written in the boards. When within the sensing range, the devices will operate according to hand-washing steps including soap dispensing after rinsing with water, tissue release, and opening and closure of the trash bin installed at the side of the basin. The lid of the trash bin is controlled by an on-off servo. The lower part is equipped with a device of 5-stage filtered water tank with 4 wheels for steady mobility and a pushing handle. At the back, there is a 30-liter water tank for water supply. The water is pumped into an automatic faucet. The used water is then filtered for grease and fat trapping before draining. The sample group reported their satisfaction on using the developed multipurpose portable hand wash basin at a very high level of 4.92.