?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.title=RANCANG+BANGUN+PENGERING+KOPI+OTOMATIS+BERBASIS+MIKROKONTROLER+ARDUINO+MEGA+2560&rft.creator=+Agum+Prakasa%2C+1315031004&rft.subject=Teknik+Elektro.+Rekayasa+elektronik+Nuklir&rft.description=%0D%0AKopi+merupakan+komoditas+sektor+perkebunan+yang+cukup+strategis+di+Indonesia%2C+khusus+provinsi+Lampung.+Pada+penelitian+ini+dilakukannya+suatu+penanganan+dalam+proses+pengeringan+biji+kopi+karena+proses+pengeringan+pada+biji+kopi+masih+dilakukan+secara+alami+dengan+cara+dijemur+dibawah+sinar+matahari+secara+langsung+yang+membutuhkan+waktu+cukup+lama+sehingga+menghambat+proses+produksi+kopi.+Pada+penelitian+pengeringan+biji+kopi+dilakukan+dengan+3+metode+perbandingan+dalam+proses+pengeringan+kopi+untuk+mengetahui+proses+pengeringan+kopi+mana+yang+efisien.+Metode+pertama+dengan+sistem+atap+buka+tutup%2C++kopi+dikeringkan+menggunakan+sinar+matahari+dan+buatan.+Pada+perancangan+ini+dilengkapi+sensor+LDR+dan+Air+untuk+menggerakan+atap+yang+dikopel+dengan+motor+DC+untuk+menutup+atau+membuka+apabila+kondisi+cuaca+hujan+atau+panas.+Pada+perancangan+alat+ini+dilengkapi+dengan+sensor+berat+untuk+menghitung+berat+serta+kadar+air+yang+hilang+pada+biji+kopi+dan+sensor+suhu+untuk+mengetahui+suhu+yang+diterima+oleh+kopi.+Metode+kedua+pengeringan+kopi+dengan+atap+tertutup+(oven)%2C+perancangan+alat+ini+hanya+menggunakan+sensor+berat%2C+sensor+suhu+dan+pemanas+buatan.+Metode+ketiga+pengeringan+kopi+secara+alami+atau+dijemurkan+dibawah+sinar+matahari.+Pada+ketiga+metode+ini+menghasilkan+data+pengeringan+kopi+sebagai+berikut+metode+atap+buka+tutup+mengahasilkan+kadar+air+sebesar+60%25%2C+55%25%2C+30%25%2C+23%25%2C+17%25+dan+12%25+selama+6+hari.+Pada+metode+atap+tertutup+menghasilkan+kadar+air+sebesar+60%25%2C50%25%2C27%25%2C20%25%2C14%25+dan+12%25+selama+6+hari.+Sedangkan++pada+metode+alami+menghasilkan+kadar+air+sebesar+60%25%2C+58%25%2C+52%25%2C+46%25%2C+33%25%2C+30%25%2C+22%25%2C+18%25+dan+13%25+selama+9+hari.%0D%0A%0D%0A%0D%0AKata+kunci%E2%80%94Kopi%2C+LDR%2C+Sensor+Air%2C+Motor+DC%2C+Sensor+Berat+dan+Sensor+suhu.%0D%0A%0D%0A%0D%0A%0D%0AABSTRACT%0D%0A%0D%0A%0D%0ACoffee+is+a+strategic+commodity+plant+sector+in+Indonesia%2C+especially+in+province+Lampung.+In+this+research%2C+a+handling+process+in+drying+coffee+beans+because+drying+coffee+beans+still+using+conventional+method+by+putting+under+the+sun+shine.+In+this+research+drying+coffee+beans++using+3+methods+of+process+drying+coffee+beans+to+compare+the+efficiency+of+drying+coffee+beans+process.+The+first+method+with+an+open-close+roof+system%2C+drying+coffee+beans+using+sun+and+heater.+The+design+open-close+roof+system+uses+an+LDR+sensor+and+water+to+move+the+coupled+roof+with+a+DC+motor++to+close+or+open+the+roof+if+the+weather+condition+is+rain+or+heat.+The+design+instrument+using+a+weight+sensor+(load+cell)+to+find+the+weight+of+coffee+beans%2C+moisture+content+that+lost+in+the+coffee+beans%2C+and+also+temperature+sensors+to+detect++the+temperature+which+received+by+the+coffee+beans.+The+second+method+of+drying+coffee+is+a+close+roof+(oven)%2C+the+design+instrument+using+a+weight+sensor%2C+temperature+sensors%2C+and+heater.+The+third+method+of+drying+coffee+is+natural+system+by+putting+the+coffee+beans+under+the+sun.+The+result+of+all+these+three+methods%2C+the+first+open-close+roof+system+moisture+content+of+coffee+beans++60%25%2C+55%25%2C+30%25%2C+23%25%2C+17%25+and+12%25+for+6+days.+The+second+method%2C+closed-roof+system+produce+moisture+content+of+coffee+beans++60%25%2C+50%25%2C+27%25%2C+20%25%2C+14%25+and+12%25+for+6+days.+The+third+method%2C+natural+system++moisture+content+of+coffee+beans+is+60%25%2C+58%25%2C+52%25%2C+46%25%2C+33%25%2C+30%25%2C+22%25%2C+18%25+and+13%25+for+9+days.%0D%0A%0D%0A%0D%0A%0D%0AKeywords--Coffee%2C+LDR%2C+Water+Sensor%2C+DC+Motor%2C+Weight+Sensor+and+Temperature+Sensor.%0D%0A%0D%0A%0D%0A%0D%0A&rft.publisher=+UNIVERSITAS+LAMPUNG&rft.date=2018-03-21&rft.type=Skripsi&rft.type=NonPeerReviewed&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F31246%2F1%2FABSTRAK.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F31246%2F2%2FSKRIPSI%2520FULL.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F31246%2F3%2FSKRIPSI%2520TANPA%2520BAB%2520PEMBAHASAN.pdf&rft.identifier=+++Agum+Prakasa%2C+1315031004++(2018)+RANCANG+BANGUN+PENGERING+KOPI+OTOMATIS+BERBASIS+MIKROKONTROLER+ARDUINO+MEGA+2560.+++UNIVERSITAS+LAMPUNG%2C+FAKULTAS+TEKNIK.+++++&rft.relation=http%3A%2F%2Fdigilib.unila.ac.id%2F31246%2F