In this paper, Robot Two Wheels are developed further to improve performance or intelligence. A Robot Two Wheels is a robot that can move and balance itself on two wheels, maintain its position upright of the earth’s surface on a flat plane. The design includes the Arduino Mega 2560, accelerometer and gyroscope sensors, as well as proportional Integral Derivative (PID) control as the controlling method. Proportional Integral Derivative control is used to determine the magnitude of the DC Motor’s speed and rotary direction as the driver, based on the robotic body’s tilt angle to the surface of the flat plane. The angle of inclination is taken into consideration and the robot moves either in the forward or backward direction to balance itself. When operated, the self-balancing robot continuously rotates its motor in its efforts to balance at upright position. The self-balancing robot movement is not mapped to its range, where the robot will still move randomly to achieve balanced conditions. The concept of this paper is expand the ability of the robot to sense objects around it which is by adding an ultrasonic sensor as an object detector around it, including obstacles or walls around self balancing robots. Detection of obstructions by ultrasonic sensors will maintain the movement of the robot in the safe area to avoid the impact that can occur when the robot is trying to maintain balance.

The purpose of the paper is to investigate the performance characteristics squirrel-cage induction motor available. This paper discusses determination parameters for three-phase induction motor based on experimental data, which the standard test data is not completely available in the end-users. Alternatively, equivalent circuit parameters should be estimated based on the released performance data of the induction motor. This paper also describes MATLAB 2021b/Simulink implementation of three phases of induction motor testing, which includes the no-load, full load, and locked rotor tests were performed to identify the equivalent circuit parameters. The value calculated of parameters simulation results has been compared to experimental values as verification and validation techniques. The deviation of measured values was diagnosed between 0.13% and 1.31%.

Any kinds of natural disaster are undesirable. Loss and damage are the most experienced as they come. Property and people have to be relieved, and it's not an easy matter. Among the deaths caused by buildings, some may still be alive and need helps as soon as possible, but this is too risky for the rescue team since the location is still in dangerous level. Therefore, we created the detector hexapod robot to replace the tasks of the rescue teams in searching for the victims of the disasters, so there are no more victims from the rescue team. The hexapod robot is a six-legged robot which shapes and runs like a spider. This research focuses on the analysis of the push button switch as a robotic foot control input. This is because walking technique is an effective major factor in navigation of robots. A good method is required to maintain the height of the robot's foot while it is walking. So to solve this, the push button switch application is used along with the inverse kinematics calculations on each routine program in adjusting the position of the end effector on the floor surface. In shifting, the navigation runs well without any failure if the position of the foot does not touch the floor. The test is done in 2 steps, comparing the inverse kinematics calculations with x and y inputs which are applied to the robot program code then comparing the travel time condition by using push button switch and without push button switch. The result of robot in this study can be re-developed in the future, using servos with greater torque and better control input than push button switch.

The analog flow meter has been widely used in Regional Water Supply Company (PDAM) to measure the amount of water flow consumed by PDAM customer. This analog flow meter has an inadequacy in converting water consumed into rupiah billing system. In this research, a modified design of water metering system was proposed. A system involving water flow sensor to detect water flow velocity in the form of pulses as the inputs of microcontroller was analyzed. The output of the flow sensor will be converted as information of how much water consumed and how much money (in Rupiah Currency) should be paid to the water company. These outputs will be delivered through SMS using SIM 800L. The result of the experiments show that the proposed modified design of the water metering system could fulfill the standard of the metering system.

The distribution of fuel oil carried by the tanker to the Fuel Stations is hard to be monitored. There are cases where the driver, who steals the fuel from the tank, harder to be tracked down. To overcome this problem, researchers used Global Positioning System  and Global System for Mobile Modem Communication  as an application. The research integrates multiple electronic Global Positioning System device, ultrasonic sensor, Arduino  and mobile  modem in the system. The device is placed in the carriage fuel tank of the tanker. This system aims to determine the car's position and content of the fuel tank. It will retrieve current car position and carriage content and send it over Short Message and voice call over Mobile modem. A program, built with Delphi will retrieve the message and point out the car position and tank level accurately on Google Maps. The results obtained indicated that the error is approximately ± 0.05 and deviation is 0 latitude and 0.00362 longitude. For further development, we plan to improve two parameters by increasing warnings with the increase in the capacity of the sensors. From the overall discussion in this study, it can be concluded that the equipment content monitoring system can be well applied.