DEVELOPMENT OF WIRELESS LIGHTING CONTROLLER FOR THE ELDERLY

Abstract

Research article on the development of wireless lighting controllers for the elderly. Its purpose is to make it easier for the elderly to turn on/off the lighting system when they need to go to the toilet at night. The wireless lighting controller is divided into 3 parts, which are footswitch, transmitter sector, and receiver sector. The footswitch is a doormat with multiple piezoelectric hidden inside. It connects the transmission sector with wire. The transmitter sector monitors the voltage level from the piezoelectric before transmitting the Zigbee wireless signal to the receiver sector that controls the lighting system with a relay. For testing the performance of the lighting controller is divided into 3 steps: testing the peak to peak voltage (Vpp) of the piezoelectric, Zigbee wireless transmitting/receiving test at a distance of 10 meters, and testing the operation of the lighting controller. The statistics used were average of Vpp (Vpp, avg), received signal strength indicator (RSSI), and percentage of operating errors (%Error). The test results showed that the piezoelectric has Vpp, avg of 2-3 volts when fully stepped on the footswitch. As for the reception/transmitting effect, it was found that without obstacles, the RSSI value was -62 dBm to -56 dBm and the RSSI value was -84 dBm to -70 dBm with obstacles. RSSI value on different floors was -88 dBm to -81 dBm. On a flat floor with or without obstacles, %Error was 0 percent, but when tested at a 90-degree position, %Error was 73.33 percent.