scholarly journals RANCANG BANGUN LEMARI PENGERING BIJI KAKAO BERBASIS MIKROKONTROLER ARDUINO UNO 328P

Author(s):  
Minsar Nasution ◽  
Edidas Edidas ◽  
Almasri Almasri

ABSTRACTThe purpose of this research is to design and make a real tool in the form of a drying cabinet for cocoa beans. Because this solution can relieve the farmers who previously drained the cocoa beans in the sun. This drying cabinet uses the Arduiono Uno 328P control and heater element as a heater. This cabinet is also equipped with a DC motor mechanical device to drive the cocoa drying container. This tool is also equipped with a DHT12 sensor which is a resistive sensor whose value changes depending on the water content of the cocoa beans. The sensor plays a role in detecting the temperature and humidity of the seeds in the cacao drying room. Then the output inverting amplifier voltage is read by the ADC Arduino UNO 328p microcontroller, which is then processed and displayed on the LCD. The test results showed that the measuring instrument made was able to measure the amount of water contained in cocoa beans in the range of water content measurement from 60% to 7.5%. Keyword: Cocoa Beans, Temperature, Arduino, DC Motor, DHT Sensor

2019 ◽  
Vol 1 (2) ◽  
pp. 51-58
Author(s):  
Sanji Muhammad Sidik ◽  
Hermawaty Hermawaty

Clothesline that is used in the community is still in the form of a manual so that the community must raise it directly. People who have more interests or who work may not have to raise clothes directly so they have to leave their more important work. When traveling or there are other jobs the community is still confused how to pick up clothesline with changing weather. From these problems, a prototype model of automatic clothesline was built using Android-based Arduino, this is to simplify and shorten the time in lifting clothesline or drying clothes when our weather changes. Having designed an automatic clothesline using Android-based Arduino. In this study, the Arduino UNO microcontroller functions as a data processing center obtained from the LDR sensor to detect light, uses a water sensor to detect rainwater and uses a DC motor to move the clothesline out / in, and uses the Bluetooth HC-05 module to move the clothesline with Android. The test results show that this tool works well, when the device is turned on the sensor will check the weather outside whether the weather is sunny or rainy. When the weather is sunny or hot outside, the clothesline will automatically come out and if the weather outside is raining, the clothesline will automatically go inside. When the sensor does not function or has trouble the automatic clothesline can be controlled via a smartphone that is connected to the Bluetooth HC-05 module.


2019 ◽  
Vol 8 (2) ◽  
pp. 211
Author(s):  
Nyoman Arinata ◽  
Ni Luh Yulianti ◽  
Gede Arda

Tujuan dari penelitian ini adalah untuk mengetahui pengaruh variasi dimensi wadah dan lama fermentasi terhadap pengeringan biji kakao dari hasil fermentasi dengan dimensi wadah yang berbeda dan untuk mengetahui perlakuan terbaik dari hasil pengeringan biji kakao setelah proses fermentasi. Penelitian ini menggunakan rancangan acak lengkap faktorial dengan dua faktor, yaitu faktor pertama adalah dimensi wadah yang berupa kotak kayu yang terdiri dari tiga dimensi yang berbeda yaitu kotak kayu berukuran 19,5 cm x 19,5 cm x 25,5 cm dengan kapasitas biji kakao segar 5,5 kg, kotak kayu berukuran 21,5 cm x 21,5 cm x 28 cm dengan kapasitas biji kakao segar 7,5 kg, dan kotak kayu berukuran 23,5 cm x 23,5 cm x 29,5 cm dengan kapasitas biji kakao segar 9,5 kg. Faktor kedua adalah lama fermentasi, yang terdiri dari tiga taraf yaitu 5 hari, 6 hari dan 7 hari. Parameter yang diamati dalam penelitian ini adalah suhu fermentasi, kadar air, jumlah biji per 100 gram, kadar kulit dan uji belah/ cut test yang meliputi biji tidak terfermentasi, biji setengah terfermentasi, biji terfermentasi sempurna, biji berkecambah, biji berjamur dan biji berserangga. Hasil dari penelitian yang dilakukan menunjukkan bahwa perlakuan wadah dan lama fermentasi berpengaruh terhadap suhu fermentasi, jumlah biji per 100 gram, kadar air, kadar kulit dan hasil uji belah yaitu biji tidak terfermentasi dan biji terfermentasi sempurna. Perlakuan proses fermentasi yang menggunakan dimensi wadah terbaik adalah dimensi kotak kayu berukuran 23,5 cm x 23,5 cm x 29,5 cm dengan kapasitas 9,5 kg yang difermentasikan selama 6 hari yaitu dengan suhu maksimal fermentasi yang dicapai sebesar 45,50 oC, jumlah biji per 100 gram sebesar 83, kadar air sebesar 7,4% Bb, kadar kulit sebesar 10,97%, hasil uji belah biji tidak terfermentasi 2%, biji setengah fermentasi 15%, biji terfermentasi sempurna 82% dan biji yang berjamur 0%, berkecambah 0% dan berserangga 0%. Kata kunci: kakao, dimensi wadah, lama fermentasi, pengeringan biji kakao.   The purpose of this study was to determine the effect of variations in container dimensions and fermentation time on drying cocoa beans from fermented products with different container dimensions and to determine the best treatment of the results of drying cocoa beans after the fermentation process. This research uses a factorial complete random design with two factors, the first factor is the dimensions of the container in the form of a wooden box consisting of three different dimensions, namely a wooden box measuring 19.5 cm x 19.5 cm x 25.5 cm with the capacity of cocoa beans fresh 5.5 kg, wooden boxes measuring 21.5 cm x 21.5 cm x 28 cm with a capacity of fresh cocoa beans 7.5 kg, and wooden boxes measuring 23.5 cm x 23.5 cm x 29.5 cm with the capacity of fresh cocoa beans is 9.5 kg. The second factor is fermentation time, which consists of three levels, namely 5 days, 6 days and 7 days. The parameters observed in this study were fermentation temperature, water content, number of beans per 100 grams, skin content and cut test which included unfermented beans, semi-fermented beans, perfectly fermented beans, germinated beans, moldy beans and insects. The results of the research conducted showed that the treatment of the container and the fermentation time affected the fermentation temperature, the number of beans per 100 grams, moisture content, skin content and the results of the split test ie not fermented and perfectly fermented seeds. The fermentation process that uses the best container dimensions is the dimension of a wooden box measuring 23.5 cm x 23.5 cm x 29.5 cm with a capacity of 9.5 kg fermented for 6 days, with a maximum temperature of fermentation achieved at 45.50 oC , the number of beans per 100 grams is 83, water content of 7,4% Bb, the skin content is 10.97%, the test results are not fermented 2%, half fermented beans 15%, 82% fermented beans and 0% moldy beans, 0% germination and 0 insects %. Keywords: cocoa, container dimensions, fermentation time, cocoa beans drying.


Author(s):  
MUHAMMAD AFDALI ◽  
MUHAMMAD DAUD ◽  
RAIHAN PUTRI

ABSTRAKAlat pengukur tinggi badan dan penimbang berat badan yang sekaligus memberikan informasi berat badan ideal akan sangat bermanfaat bagi para pengguna. Oleh karena itu, dalam penelitian ini, dirancang dan direalisasikan suatu alat ukur yang sekaligus dapat mengukur tinggi badan dan berat badan serta memberikan informasi ideal atau tidaknya berat badan yang terukur. Alat ukur ini menggunakan Arduino Uno sebagai otaknya, sensor ultrasonik untuk mengukur tinggi badan, dan sensor strain gauge untuk mengukur berat badan. Data dari kedua sensor tersebut diolah oleh Arduino untuk mendapatkan indeks massa tubuh (IMT) dan berat badan ideal (BBI). Nilai tinggi badan, berat badan, dan berat badan ideal akan ditampilkan pada LCD. Selanjutnya, informasi suara menyangkut kondisi berat badan yaitu ideal, gemuk, atau kurus akan dikeluarkan oleh speaker. Berdasarkan hasil pengujian dan analisis data maka diperoleh nilai persentase keberhasilan rata-rata pada pengukuran tinggi badan adalah 96,80% dan pada pengukuran berat badan adalah 99,04%. Sedangkan tingkat keberhasilan penampilan informasi suara adalah 95%.Kata kunci: Alat ukur digital, tinggi badan, beratbadan, Arduino, output suara.ABSTRACTAn instument for measuring height and weight while providing information ideal weight for users will be very helpful. Therefore, in this study, it was designed and realized a measuring instrument which can simultaneously measure the height and weight as well as providing the ideal information whether or not the weight measured. This instrument uses an Arduino Uno as the brain, the ultrasonic sensor to measure the height and strain gauge sensor for measuring weight. Data from the sensors is processed by the Arduino to get a body mass index and ideal weight. The values of height, weight, and ideal weights will display on LCD. Furthermore, voice information regarding the ideal conditions of weight, namely ideal, fat, or thin will be emitted by a speaker. Based on test results and data analysis, obtained that values of the average percentage of success at the height measurement was 96.80% and the weight measurement was 99.04%,respectively. While the success rate of emitting the sound information is 95%.Keywords: Digital measuring instrument, height, weight, Arduino, sound output.


2021 ◽  
Vol 328 ◽  
pp. 02014
Author(s):  
Miftachul Ulum ◽  
Deni Tri Laksono ◽  
Dedi Tri Laksono

In this research, a DC motor tested using the L298 motor driver which is controlled by Arduino as the motor speed regulator and using the PWM method as a speed control signal generator for the DC motor. This research has several stages, namely literature study, arduino-based dc motor design, Arduino-based dc motor production, Arduino-based dc motor testing, then analysis of research results and conclusions are drawn. Testing on this Arduino-bas, ed DC motor was done with several experiments, by adjust the motor speed by setting the pwm value in the program listing section then measuring the pwm output on pin 9 of the Arduino Uno board. Then measurements were made on the right and left side of the motor. This experiment was carried out by setting the pwm value from 15 to 255 to determine the difference in the increase in the PWM output voltage and determine the voltage on the motor and determine the condition of the DC motor. The test results show that the initial motor moves when the set value of PWM = 45, PWM voltage = 0.83 V, right motor voltage = 1.53 V, and left motor = 1.75 V.


2021 ◽  
Vol 2 (2) ◽  
pp. 30-39
Author(s):  
Nita Suliyani ◽  
◽  
Sri Wahyu Suciyati ◽  
Gurum Ahmad Pauzi ◽  
Arif Surtono

In this research, the water turbidity measurement tool based on Arduino Uno has been designed and built using phototransistors and infrared LEDs. This measuring instrument consists of a series of infrared sensors, Arduino as a process, LCD I2C as a value viewer, Micro SD as a data storage, and RTC as a timer. This study used two water samples with various concentrations. The sample used, namely distilled water plus impurities in the form of soil and ash. The distilled water used is still 100 ml with variations in the concentration of impurities ranging from 0,1-0,9 gr. Sensor test results show that the greater the turbidity level, the greater the voltage obtained. Sensor scanning ranges from 2,02 V-4,00 V for groundwater and 2,02 V-4,31 V for ash water. The reading uses a standard measuring instrument for groundwater ranging from 0 NTU to 331,4 NTU, while for ash water ranging from 0 NTU to 284,4 NTU. Data from the sensor test results in an equation used to convert the artificial measuring instrument's voltage value into a turbidity value. Then, data is taken using the same sample, so groundwater's turbidity value was obtained from 0 NTU to 318,94 NTU while for ash water from 0 NTU to 285,13 NTU. Based on the results, average accuracy for water was obtained. Soil amounted to 94,66%, while for ash water was 96,63%.


2016 ◽  
Vol 10 (1) ◽  
pp. 1
Author(s):  
Potnuru Devendra ◽  
Mary K. Alice ◽  
Ch. Sai Babu ◽  
◽  
◽  
...  

2018 ◽  
Vol 3 (2) ◽  
pp. 38-47
Author(s):  
Muhammad Abdul Azis ◽  
Nuryake Fajaryati

This research aims to create a Reosquido desalination tool for evaporation methods using a microcontroller. This tool can control the temperature to speed up the evaporation process in producing fresh water. The method applied to Reosquido desalination uses Evaporation. The first process before evaporation is the detection of temperature in sea water that will be heated using an element heater. The second process of temperature measurement is to turn off and turn on the Arduino Uno controlled heater, when the temperature is less than 80 ° then the heater is on. The third process is evaporation during temperatures between 80 ° to 100 °, evaporation water sticks to the glass roof which is designed by pyramid. Evaporated water that flows into the reservoir is detected by its solubility TDS value. The fourth process is heater off when the temperature is more than 100 °. Based on the results of the testing, the desalination process using a microcontroller controlled heater can speed up the time up to 55% of the previous desalination process tool, namely manual desalination prsoes without using the heater element controlled by the temperature and controlled by a microcontroller which takes 9 hours. Produces fresh water as much as 30ml from 3000ml of sea water, so that it can be compared to 1: 100.


2012 ◽  
Vol 562-564 ◽  
pp. 1496-1500
Author(s):  
Qiang Li ◽  
Wei Chen ◽  
Ren He

To investigate the accuracy of modeling DC motor, the platform for measurement and calculation dynamic parameters is built by the Hardware-In-the-Loop(HIL) method based on dSPACE system. The running state of DC motor has to be changed with adjustment of PWM duty-cycle using ControlDesk software. Having got measurement and calculation parameters value of DC motor, we compare the test results with simulation value using the model of DC motor with cascade control in Matlab/Simulink software according to the classical mathematical model. It confirms the established model of DC motor accurately and reliability using new parameters, which provides the basis of more complex control algorithms and also indicates that the feasibility and generalization application value of measurement and calculation method for DC motor.


2020 ◽  
Vol 4 (2) ◽  
pp. 8-11
Author(s):  
Diarsyah Amarullah ◽  
Mochammad Djaohar ◽  
Massus Subekti

Abstract The purpose of this research is to design of the speed regulation of an arduino uno based seri DC motor using a DC-DC converter (Boost Converter). This research uses research and development method. The research subjects used are seri DC motor. Data analysis technique used is descriptive analysis with data collection technique that is laboratory observation using test instrument. The conclusion of this research is using a DC-DC converter or boost converter can move seri DC motor loads inertia to which has a maximum voltage of 24 V from the start supply to the boost converter which is 12 V so that the voltage increases twice. Other than that in terms of setting the DC motor speed is influenced by the amount of duty cycle controlled via by arduino uno microcontroller. ABSTRAK Tujuan penelitian ini adalah untuk membuat rancang bangun pengaturan kecepatan motor DC seri berbasis arduino uno dengan menggunakan DC-DC converter (Boost Converter). Penelitian ini menggunakan metode riset dan pengembangan. Subyek penelitian yang digunakan yaitu motor DC seri. Teknik analisis data yang digunakan yaitu analisis deskriptif dengan teknik pengumpulan data yaitu observasi laboratorium menggunakan instrumen pengujian. Kesimpulan dari penelitian ini adalah dengan menggunakan DC-DC converter atau boost converter bisa menggerakan beban inersia pada motor DC seri yang memiliki tegangan maximal 24 V, dari supply awal ke boost converter yaitu 12 V sehingga tegangan meningkat dua kali. Selain itu dalam hal pengaturan kecepatan motor DC dipengaruhi besaran duty cycle yang dikontrol melalui mikrokontroler arduino uno.


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