Tofu has the best quality vegetable protein because it has the most complete amino acid composition and is believed to have high digestibility (85% -98%). According to SNI 01-3142-1998 and SII No. 0270-1990 testing criteria for soy tofu based on smell, taste, color, appearance, or texture. Tofu soybeans are prone to physical or texture damage due to factors such as inappropriate pH levels and insufficient storage which results in damaged tofu. Therefore in this study, it is proposed to determine the elasticity of soy tofu with the parameters tested are the pH level in the manufacture of soy tofu, the storage temperature, and the capacitance value to see how thick the tofu is with a capacitive sensor using the capacitor principle. Where the parallel plate capacitor is a capacitor consisting of two parallel metal plates. The test results of all sensors are sent to the database and will be displayed on the page on the Android application which will provide real-time sensor output information to the user. Based on the results of testing on this system using a pH sensor, the pH value is around 3-4 which indicates that the pH level used is very good for use in tofu processing, at pH 4.56 with storage at 29 ° C the highest elastic capacitance value is 3.58. In testing data delivery, the throughput value is 4336,217 b / s and the smallest delay value is 0.017ms because the smaller the delay value, the better the quality of data transmission because there will be no delay in sending data.
Pada penelitian ini aplikasi andoid dapat digunakan sebagai alat bantu konsumen mengetahui kadar lemak dan keasaman pada minyak barco,ikan dorang,dan minyak curah yang memiliki sistem monitoring secara real time. Penelitian ini menggunakan Arduino uno dan NodeMCU sebagai mikrokontrollernya. Arduino uno nantinya akan dirangkainya bersama dengan modul pH air,ultrasonik HC-SR04,dan kapasitif soil. Modul pH berfungsi untuk mengukur kadar air dan lemak pada minyak sawit. Modul ultrasonik yang berfungsi untuk mengukur volume pada wadah pengukuran minyak. Modul kapasitif berfungsi untuk menentukan kepadatan kualitas pada minyak jenuh. Hasil pengujian dapat disimpulkan bahwa Sensor pH dapat mendeteksi kadar lemak dan keasaman pada minyak sawit memiliki nilai sekitar 5 sampai 11. Sensor ultrasonik pada volume minyak sampel barco dan ikan dorang memiliki grafik yang signifikan naik,sedangkan sampel minyak curah memiliki grafik yang sangat tinggi yang menyebabkan keasaman minyak. Penelitian ini memiliki delay tertinggi sebesar 1.303525ms dan delay terendah sebesar 0,628276ms. Dengan nilai rata-rata delay yang didapatkan sebesar 1.189657 ms
Strawberry is a horticultural commodity that produces a high economy, but in 2014 strawberry production decreased by 34.83%. The reason for the decrease in production is the unstable temperature and humidity conditions due to global warming. Another factor that causes strawberries to fail is due to the slowness of farmers in knowing changes in temperature and humidity in strawberry. The method used in this study was to compare the results of special treatment on microgreen strawberry nurseries indoor using natural vegetative methods and outdoor. System telecontrolling strawberry nursery real time with temperature and humidity parameters using a DHT22 sensor, soil moisture using a soil moisture sensor, soil pH using a soil pH sensor, time using RTC and light intensity using a light intensity sensor BH1750. The results of strawberry nurseries with telecontrolling an indoor plant height of 9 cm and a plant width of 12 cm, results of strawberry nurseries without telecontrolling treatment outdoor with a plant height of 7.5 cm and a plant width of 7 cm.
bstract: Electronic waste management has been a problem for a quite long time. Referring to Government Regulation No. 27 of 2020, it is important to provide education on the management of electronic waste generated by households. Specific waste is classified as B3 waste which requires special management. This study focuses on the management of electronic waste generated by households in Malang City. The flow of waste from households was measured from the disposal, repair, or donation process using questionnaires and interviews. This study involved electronic waste collectors participating in the survey on electronic waste collection. Demographically, educational background and household income do not influence the reduction of electronic waste accumulation by the type of waste disposed of and the treatment.
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