1,720,980 research outputs found
Sistem Kontrol Buka Tutup Gorden Otomatis Menggunakan Stepper Motor NEMA 17HS3401 Berbasis IOT (Internet of Thing)
Full text linkThe development of technology maximizes the performance of existing technology to ease human work in everyday life. To control the curtains, a smartphone with Android operating system is needed. The smartphone is used as a command giver to the curtains through blynk which is the processor connected to the stepper motor as the mechanical drive of the curtains. To design and make a curtain control system tool that can be accessed via a smartphone, several important components are needed in the form of NodeMCU ESP8266, stepper motor and motor driver. The design of this tool is carried out with several tests in stages starting with testing the voltage source circuit, NodeMCU microcontroller, stepper motor testing, NodeMCU ESP8266 testing, LM2596 IC testing (Stepdown Regulator) and Joystick testing on the Blynk platform. Controlling the curtain through smartphone can be done by connecting the component circuit with joystick on Blynk platform requires WiFi. This tool is very easy for users to do curtains remotely, for example when outside the house, users can close the curtains only by using a smartphone. Users also do not need to spend energy to open or close the curtains both inside and outside the house.36 HalamanKertas Karya Diplom
Design of An Asthma Detection Tool Based on The Internet of Things (IoT) Using ESP32
No full textAsthma is a chronic condition characterized by the respiratory tract and requires continuous monitoring and management to prevent asthma attacks. In this study, an asthma detector based on the Internet of Things (IoT) using an ESP32 microcontroller was designed. This tool aims to determine the design and working principle of the tool so as to produce the final value of all processes carried out by the ESP32 microcontroller and the design of this tool has been equipped with additional technology in the form of IoT which is connected to the user's smartphone as a display of the user's breathing condition in realtime and provides early warning if asthma symptoms are detected. The system consists of a respiratory sensor connected to ESP32 to measure respiratory parameters such as airflow rate and breath volume. The data obtained from the sensor is transmitted to the cloud platform via a Wi-Fi connection provided by the ESP32, allowing access and monitoring by users and medical personnel via the app. In addition, the system is equipped with data analysis that can detect abnormal breathing patterns that indicate an asthma attack. Initial tests show that the device is able to measure and transmit respiratory data with fairly accurate results by providing real-time notifications when breathing anomalies occur. With further development, this IoT-based asthma detection tool is expected to help users in managing their asthma.59 PagesKertas Karya Diplom
Synthesis of N and S Doped Carbon Dots from Reeds Roots Hydrothermal Method For Detection of Curcumin
No full textResearch has been carried out on N, S-CDs with the basic ingredient namely reeds roots to be applied as a curcumin detector. N, S-CDs are made from reed roots (Imperata cylindrica radix) with the addition of C3H7NO2S to the material composition, namely 3:3, 3:6, 3:9, 9:3 and 6:3 using the hydrothermal method. The preparation process is carried out by mixing reeds roots and C3H7NO2S with ethanol and distilled water as solvents. Then the solution was put into a hydrothermal autoclave and kept for 4 hours in an oven 2000C. Then centrifuged for 10 minutes at a speed of 10,000 rpm then dialyzed for 72 hours. The characterization of N, S-CDs was explained through Ultraviolet-Visible Spectrophotometer, Photoluminescence (PL), Fourier Transform Infrared Spectroscopy (FTIR), X-ray Diffractometer (XRD) and Scanning electron microscope with energy dispersive X-ray spectroscopy (SEM-EDX). The wavelength results in UV-Vis and PL testing were 268.38-314.02 nm and 492.91-495.02 nm. The FTIR test results show that the C = C group in the wavelength 1640-1680 ...is the core component of N, S-CDs, which proves that it was successfully synthesized. XRD test results show that the crystal diameter decreases with the addition of reed root composition. The test results from SEM with the addition of reed root composition made the pores in the sample wider. The EDX results show that adding the composition of reed roots has an increasing effect on the element C (carbon). To detect curcumin, a carbon dot is used for luminescence color (fluorescence) with a regression value (absorbance) of 0.6108 which emits a yellow color when dissolved.89 PagesSkripsi Sarjan
Sintesis dan Karakterisasi Pakan Ternak Ruminansia Berbahan Dasar Tanaman Indigofera Zollingeriana Menggunakan Metode Fermentasi Em 4
Full text linkThis research was conducted to make ruminant feed pellets using Indigofera
Zollingeriana as a concentrate and additional ingredients such as coconut pulp, rice
bran, molasses, cassava, and EM 4. The purpose is to find out how the optimization of
animal feed pellets made from Indigofera Zollingeriana plants with several mixed
ingredients such as rice bran, coconut pulp, cassava, molasses and EM 4 by EM 4
fermentation method on the physical properties, mechanical properties, and chemical
properties of the animal feed pellets. Animal feed was made by mixing Indigofera
Zollingeriana, coconut pulp, rice bran, cassava with a percentage of (55.81% : 22.1%
: 14.73% : 7.365%), as well as molasses and EM 4 in a ratio of 1:1. The test samples
were made by weighing, pulverizing, mixing, fermenting, drying, and molding into
pellets. The results showed that animal feed pellets with Indigofera Zollingeriana plant
concentrate had physical properties that were less in accordance with existing
standard values in the form of specific gravity with a value of 1.96 gr/ml, porosity of
8.84%, water absorption of 68.76%, maturity temperature in feed 38ºC and solubility
in water with 4.36%. Meanwhile, for physical properties in the form of color and odor,
the animal feed produced has a brownish color and a normal smell like animal feed in
general. In mechanical properties, a value for hardness of 5.002% and brittleness of
1.53% were obtained which met the standard value of the animal feed pellets
themselves. As for chemical properties based on proximate analysis, the value of
content in animal feed is obtained in the form of protein 8.22%, total fat 6.78%, crude
fiber 26.4%, carbohydrates 17.4%, ash content 7.50%, and moisture content of 33.7%.
Based on the chemical properties test, only the ash content meets the SNI 3148-2:2017
standard. The quality of these animal feed pellets still needs to be improved75 HalamanSkripsi Sarjan
Pembuatan Alat Sistem Smartcard sebagai Pengamanan Pintu Lida Fisika USU Menggunakan RFID Berbasis Arduino Uno
Full text linkThe door is an important part of the house. Sometimes it is difficult to open and close the door of the house. As technology develops, it replaces manual doors into automatic systems. However, you also need to pay attention to the automatic door security system. This study formulates the problem of how to system automatic doors and door security using RFID. The research method used is research and development. This Automatic Door is programmed by the Arduino application by creating a security system using Radio Frequency Identification (RFID) as a data carrier radio frequency wave that will be received by the receiver. The results of this study are in the form of an automatic door prototype using RFID that can operate properly. The ability of the RFID sensor to detect ID between the Card and the Reader is a maximum of 5cm. The ability of the Reader to detect ID cards is 2 to 3 seconds starting when the ID card is attached to the Reader. The Selenoid system on this automatic door will work if the id and password are correct and the servo will move the door.42 HalamanKertas Karya Diplom
Efektivitas Karbon Aktif Tempurung Pala dalam Menurunkan Kadar Amonia (Nh3) Pada Air Kolam Ikan
No full textResearch on nutmeg shell activated carbon as a water adsorber aims to reduce ammonia levels in fish pond water. The process of making nutmeg shell activated carbon starts with nutmeg shell dried in the sun for 3 hours and carbonized at 350oC for 2 hours, then mashed using a mortar and sifted 100 mesh, then chemically activated using 1M HCl solution for 24 hours and then washed using distilled water until the pH is neutral and dried using a 110oC oven for 1 hour. Furthermore, the activated carbon of nutmeg shell was physically activated with temperature variations of 600oC, 650oC, and 700oC for 2 hours. Activated carbon that has been activated is then tested for standard activated carbon requirements according to SNI, characterized tests to determine water absorption (physical properties), SEM-EDX Mapping, crystal testing (XRD), and FTIR functional groups. The standard test results of activated carbon decreased by SNI obtained the results of 9.23% moisture content, 8.45% volatile matter content, 9.71% ash content and 81.84% bound carbon content. Physical test of optimum water absorption value at 700oC is 36.5%. SEM EDX Mapping test with an average pore diameter size of 232 nm, XRD results show the crystal structure formed is an amorphous structure, and FTIR test analysis on activated carbon that has been activated shows 3621.27 cm-1 the presence of O-H bonds and the 1700.13 cm-1 region shows the presence of C≡ C bonds. The results of testing ammonia levels with a mass variation of activated carbon 2 gr, 4 gr and 6 gr each temperature with 100 ml of pool water show that the mass variation of 6 gr 700oC temperature is able to reduce ammonia levels from 2 mg/L to 0.2 mg/L.64 HalamanSkripsi Sarjan
Sintesis dan Karakterisasi Pakan Ternak Ruminansia Berbahan Dasar Tanaman Indigofera Zollingeriana Menggunakan Metode Fermentasi Em 4
Full text linkThis research was conducted to make ruminant feed pellets using Indigofera
Zollingeriana as a concentrate and additional ingredients such as coconut pulp, rice
bran, molasses, cassava, and EM 4. The purpose is to find out how the optimization of
animal feed pellets made from Indigofera Zollingeriana plants with several mixed
ingredients such as rice bran, coconut pulp, cassava, molasses and EM 4 by EM 4
fermentation method on the physical properties, mechanical properties, and chemical
properties of the animal feed pellets. Animal feed was made by mixing Indigofera
Zollingeriana, coconut pulp, rice bran, cassava with a percentage of (55.81% : 22.1%
: 14.73% : 7.365%), as well as molasses and EM 4 in a ratio of 1:1. The test samples
were made by weighing, pulverizing, mixing, fermenting, drying, and molding into
pellets. The results showed that animal feed pellets with Indigofera Zollingeriana plant
concentrate had physical properties that were less in accordance with existing
standard values in the form of specific gravity with a value of 1.96 gr/ml, porosity of
8.84%, water absorption of 68.76%, maturity temperature in feed 38ºC and solubility
in water with 4.36%. Meanwhile, for physical properties in the form of color and odor,
the animal feed produced has a brownish color and a normal smell like animal feed in
general. In mechanical properties, a value for hardness of 5.002% and brittleness of
1.53% were obtained which met the standard value of the animal feed pellets
themselves. As for chemical properties based on proximate analysis, the value of
content in animal feed is obtained in the form of protein 8.22%, total fat 6.78%, crude
fiber 26.4%, carbohydrates 17.4%, ash content 7.50%, and moisture content of 33.7%.
Based on the chemical properties test, only the ash content meets the SNI 3148-2:2017
standard. The quality of these animal feed pellets still needs to be improved75 HalamanSkripsi Sarjan
Perancangan Sistem Uji Tekan Suatu Bahan Menggunakan Metode Half Bridge Weight Sensor Berbasis Mikrokontroler Arduino
No full textConcrete is a mixture of Portland cement or other hydraulic cement, fine aggregate, coarse aggregate and water, with or without additives. Concrete is a composite material. It is called a composite because it consists of a binder (usually a mixture of hydraulic cement and water), fine aggregate (usually sand) and coarse aggregate (usually gravel) with or without additives). In this study, the Arduino microcontroller was used as a control system in the measurement process. The sensor used in this study is a half bridge load cell sensor. The mechanics used in this system are manual jack mechanics. With this, research is carried out in testing automation systems and mechanical design in producing a research system with the title "Design of a Compressive Test System for a Material Using the Half Bridge Weight Sensor Method Based on Arduino Microcontrollers". By doing research, it can make an innovation and solution in the development of an efficient pressure testing tool. This metal can be grown before or after the casting process. The compressive strength of the concrete produced by the pull out test is ± 20% of the compressive strength produced by the compression test. Several testing tools in compression testing have been widely used but have high costs. The depth of penetration of the reinforcement shows the strength value of the concrete being tested. This procedure is almost the same as the hammer test, it's just the impact force. And the results of the comparison of the value measurement with the comparison, the average percent error in the above measurement is 0.81%.52 HalamanKertas Karya Diplom
Microcontroller-Based Blood Type Detection and Blood Sugar Measurement Device
No full textThe process of testing and observing the agglutination/non
agglutination
reaction of red blood cells that have been treated with antisera/serum to
determine a person's blood type and rhesus is still carried out by experienced
people who rely directly on th eir eyes. Meanwhile, the eyes are greatly influenced
by saturation or fatigue factors. So this method is less profitable for testing large
quantities of blood samples. In this research, a tool was designed that can read
human blood types electronically to make it easier to test large quantities of blood
samples. Testing human blood type in this tool uses the ABO system. The tool
designed consists of two pairs of light sensors, which are built from LDR
components, and a controller system from Arduino. This t ool will detect the
occurrence of agglutination/non agglutination reactions from blood samples
tested with antisera through a sensor. The tool designed can also detect blood
sugar, cholesterol and uric acid by using an additional PPG sensor where the
blood entered will be compared with the heart rate. Furthermore, the data from
the sensor will be conditioned and processed directly by Arduino and the results
will be displayed on a 4x20 LCD. Success rate 88%. This tool works by taking a
blood sample which is then analyzed using a color sensor to determine blood type
and an EC sensor to measure blood sugar levels. The data from the sensors is sent
to the ESP32 microcontroller, which processes the data and displays the results
on the LCD.75 PagesKertas Karya Diplom
Efektivitas Karbon Aktif Tongkol Jagung Ungu dalam Menurunkan Kadar Amonia (NH3) Pada Air Kolam Ikan
No full textResearch on purple corn cob activated carbon as a water adsorbent aims to
reduce ammonia levels in fish pond water. Purple corn cob activated carbon is used
to reduce ammonia (NH3) levels in fish pond water. Carbonation temperatures are at
550oC, 600oC and 650oC for 30 minutes, mashed with 100 mesh sieve, chemically
activated using 6% Na2CO3 stirred at 70oC for 15 minutes and soaked for 24 hours
then washed using distilled water pH neutral and oven at 100oC for 1 hour. Testing
the level of ammonia with a mass of activated carbon 1.5 gr, 2.0 gr and 2.5 gr with
50 ml of ammonia water. Ammonia content from 1 mg/l to 0.2 mg/l with a mass of
1.5 g of activated carbon. The water absorption is at a temperature of 500oC with
20.9%. SEM test EDX Mapping with an average pore diameter of 220 nm, XRD
results showed Rhombohedral crystal structure, as well as FTIR test analysis on
carbon that had been activated with a wave number of 3244.60 cm-1 and 6% Na2CO3
3621.27 cm-1 of an O-H bond. In the carbon sample that has not been activated,
absorption band of 2882.30 cm-1 of a C-H bond.78 HalamanSkripsi Sarjan
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