| dc.description.abstract | The management of electricity consumption for lamps and water tanks generally relies on a kWh meter,
so it is still not effective because it can only monitor and limit electricity usage, not being able to turn off pumps and
unused lights. These problems can be overcome with the Internet of Things, which is able to connect equipment
through the internet network. The process requires a communication protocol system, which is efficient in terms of
bandwidth, latency, and power consumption. The communication protocol model used in this study is Message
Queuing Telemetry Transport, considering that this protocol can connect to slow networks. The test results show
that the Message Queuing Telemetry Transport (MQTT) application has a better performance on the lighting and
watering automation system, which is implemented on a mobile application using the Flutter framework to receive
and display high-load garden light control, waterpump control and underground reservoir water level monitoring.
The calibration results show that the HYSRF05 sensor can work well in the range of 50-150 cm, with a maximum
relative error of 0.36%. The smallest distance change that can be detected by the sensor is 0.04 cm with a maximum
relative error of 0.05%. With the magnitude of the error obtained, it can be said that the sensor is suitable for use
as a water level detector in an underground reservoir water level monitoring system. The power consumption for
lighting and water pumps shows that the design of this system has an impact on power savings of 118.03 kWh. With
the Flutter framework, a Mobile Application was built to manage and handle underground reservoir water level
monitoring system data, so that users can set conditions to notify users about water level thresholds, use of lighting
devices and water pumps through a Mobile Application that is equipped with a Notification feature that is integrated
in real-time. | en_US |
