Smart Door Locks System Based on Internet of Things Concept with Mobile Backend as s Service is the smart door locks development are supported by cloud computing technology as data storage. Methods of development that exist in this system is to combine technology (1) ESP8266 (2) Firebase and (3) Android Apps. Firebase is one of cloud-based services that are used to store data online. ESP8266 able to communicate with firebase well to process the read and write data directly using internet communication channels. Android application used to direct communication to the firebase for monitoring and  controlling simultaneously to the system. Android app can control / monitoring Indirectly to ESP8266 module via Firebase that serves as a mobile Backend as a Service to apply the rules of the Internet of Things

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This research aims to produce the trainer of Internet of Things for students majoring in Informatics engineering education and assess the feasibility of the Internet of Things trainer for students majoring in informatics engineering education. In the developed trainer, the Internet of Things trainer application is used for remote control using the internet. This research is an R & D research because the result of research is product oriented in the form of trainer and companion module. This study uses a development model that consists of analysis, design, implementation and evaluation, where the location of evaluation and revision are at every stage. Data collection using a questionnaire that has a range of 1 to 4. Obtaining the next questionnaire value is converted to find out the feasibility category. The result of the research shows that the value of media trainer of Internet of things generally get the value 3,33 which interpreted in the category of Very Good and obtained some input that has been improved. Feasibility values that can be interpreted very well on the Internet of Things trainer show that this trainer can be used in classroom learning.Penelitian ini bertujuan menghasilkan trainer Internet of Things untuk mahasiswa jurusan pendidikan teknik Informatika dan menilai kelayakan trainer Internet of Things untuk mahasiswa jurusan pendidikan teknik Informatika. Pada trainer yang dikembangkan, aplikasi trainer Internet of Things digunakan untuk kendali jarak jauh menggunakan internet. Penelitian ini merupakan penelitian R&D karena hasil penelitian berorientasi pada produk yang berupa trainer dan modul pendamping. Penelitian ini menggunakan model pengembangan yang terdiri dari analisis, desain, implementasi dan evaluasi, dimana letak evaluasi dan revisi berada pada setiap tahapan. Pengambilan data menggunakan angket yang memiliki rentang nilai 1 s.d. 4. Perolehan nilai angket selanjutnya dikonversi untuk mengetahui kategori kelayakan. Hasil penelitian menunjukkan bahwa nilai kelayakan media trainer Internet of things secara umum memperoleh nilai 3,33 yang diintrepetasikan dalam kategori Sangat Baik dan diperoleh beberapa masukan yang telah diperbaiki. Nilai kelayakan yang dapat diintrepetasikan sangat baik pada trainer Internet of Things menunjukkan bahwa trainer ini dapat digunakan dalam pembelajaran dikelas.