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Article history: Received 30 Mei 2020 Received in revised form 2 Juni 2020 Accepted 10 Juni 2020 Available online 12 Juni 2020 ABSTRACT Alcohol is the common name for organic compounds that have a hydroxyl group attached to carbon and hydrogen atoms. The alcohol that is commonly found in liquor is ethyl alcohol or it is also called ethanol, but it is usually referred to as alcohol alone. Drinks with an alcohol content of 40% can lose consciousness, leading to accidents for alcohol-affected drivers. To detect alcohol in the body using an alcohol tester. Researchers tried to make a measuring instrument for alcohol levels in the body using several components such as Arduino nano, MQ 3 sensor, OLED, charger module, battery, resistor, push button, and buzzer. The design of a portable alcohol level detector through breath can work well, namely the results of the reading of alcohol levels in the body by the MQ-3 sensor through the breath and displayed on the Oled Display in units of% BAC (Blood Alcohol Concentration), in the sample comparison of the alcohol level reading between Final project tool with a comparison tool alcohol tester obtained the percentage difference in an average of 0.01% BAC. Keywords: Alcohol, Arduino Pro Micro, MQ-3 Sensor, OLED, Charger Module, Battery, Resistor, Push Button, and Buzzer

Online rickshaw application is an application that serves to help the performance of the community in traveling.  Pedicabs are widely used by residents, especially in Takengon, pedicabs are one of the means of land transportation that is in great demand by the community, especially the middle to lower classes.  However, pedicabs can not be found all the time, sometimes we have to wait a long time, have to walk to get a pedicab, even pedicabs are only at a crossroads.  Lack of information between rickshaw drivers and passengers and limited public transport lanes.  With this online transportation application, answering the problems of the people, especially in the Takengon area.  How to use it so easily that the target community must have special skil…

Oil palm is Indonesia's leading and prime plantation commodity. Plants whose main products consist of palm oil (CPO) and palm kernel oil (KPO) have high economic value and are one of the largest foreign exchange earners compared to other plantation commodities (Fauzi, 2012) PT. Safety Pin River Purun is a company that manages palm kernel products with the products produced there are 2 types, namely CPKO (Cruide Palm Kernel Oil) and PKM (Palm Kernel Meal). From the results of the study it was found that the prototype design was made capable of producing palm kernel assessment calculations using AHP in the assessment process, while the prototype model used was to use the prototyping model method. With this research can be beneficial for the management of PT. The Sungai Purun pin in the process of evaluating palm kernel is more effective and accurate in producing reports

This study generally aims to design an information system that can handle problems in putting and sorting goods into warehouses at CV. Sekar Intan KIC Gatsu, Semarang. In terms of using the Information System, CV. Sekar Intan KIC Gatsu, Semarang. In the transfer and sort of goods in the warehouse still using a manual system when the implementation, warehouse employees must take and place the goods to the warehouse that has been determined each - each type of item, so employees must calculate the number of items when the goods take place, here various problems occur, because it requires some HR to manage the warehouse performance process at CV. Sekar Intan. To support the research, researchers used Research and Development (R & D) research methods through the microcontroller-based moving robot design simulation design stages that have been tested by experts declared valid with Valid validity levels and final product development design simulation prototypes carried out. goods transfer robot uses Arduino IDE development software that is integrated with Arduino Mega 2560, 6 pin line sensor, dc motor, motor driver, servo motor, motor driver, lcd, and has been tested in the field by General Adv. Administration and HRD as users / users and stated to be very effective. Based on the results of the research and discussion, it can be concluded that the robot design system developed can overcome the problems in the old system on the CV. Sekar Intan KIC Gatsu Semarang, so as to produce a system that can facilitate work processes and parking processes for employees to be more effective and efficient.

Jl Karanglo RW 03 Pedurungan Semarang is a densely populated environment, its people are very hungry for fast and accurate information. The internet is available which is relatively expensive as the main choice in finding the information needed. However, the cost is very expensive for a connection that must be paid every month. Although currently many CDMA and GSM modems available on the market are not enough to meet the need for speed of an internet connection. Although there are internet cafes established, they have not streamlined the cost and time of internet users in the area. The purpose of this study is to save the cost of bandwidth rental per month for unlimited connections, provide a stable internet connection that can be used for 24 hours straight, provide data transfer with bandwidth management, so as to better guarantee the quality of the internet connection. The system development method used is Prototyping which stages include identifying user needs, making a prototype, agreeing to the user, using a prototype. As a server, using Mikrotik Os where in Mikrotik Os there are several important and interesting features provided by Mikrotik itself, among those features are bandwidth management, firewall, DNS client chacing, and many other features provided by Mikrotik. With this Mikrotik provides stability of internet data transfer in accordance with the management of Mikrotik Os as a server. The client uses a Windows-based operating system, this is because the driver tool used is more compatible using a Windows operating system than using a Linux-based operating system, because it has to compile the driver.