Nama : Trisna Sani Sembiring
Kelas : XI Elektronika 1
Judul : Mewujudkan Smart Home Dengan Saklar Pintar Berbasis NodeMcu

A. Latar Belakang

Smart home dan internet merupakan dua hal yang saling berkesinambungan, konsep Internet of Things yang dipakai dalam smart home juga berarti menjadikan sebuah perangkat di rumah dapat tersingkronisasi dengan module melalui internet. Menurut Ashton pada tahun 2009 definisi awal IoT adalah Internet of Things memiliki potensi untuk mengubah dunia seperti pernah dilakukan oleh Internet, bahkan mungkin lebih baik. Perkembangan dibidang Elektronik pun juga semakin berkembang pesat, salah satunya adalah pada sistem kontrol jarak jauh, dimana hal ini memungkinkan seseorang dapat mengontrol suatu alat, menghidupkan ataupun mematikan alat tersebut dari jarak yang jauh, modul yang sering digunakan yaitu Arduino, Wimos D1, Raspberry phi, NodeMCU ESP8266, dll. NodeMCU merupakan sebuah platform module IoT yang bersifat opensource. Terdiri dari perangkat keras berupa System on Chip ESP 8266 dari seri ESP buatan Espressif System, juga firmware yang digunakan menggunakan bahasa
pemrograman scripting Lua. Istilah NodeMCU secara default sebenarnya mengacu pada firmware yang digunakan daripada perangkat keras development kit.

Belakangan ini kita sering menemukan pemilik rumah yang lupa mematikan lampu rumah saat meninggalkan rumah, dan pemilik rumah baru sadar bahwa lupa mematikan lampu saat sudah dalam perjalanan. Perilaku inilah yang mengakibatkan pemborosan energi listrik. Keinginan pemilik rumah yang ingin mematikan atau bahkan ingin menyalakan lampu rumah saat tidak berada di tempat atau saat berada ditempat inilah yang membuat sistem pengontrolan terhadap lampu rumah otomatis pun berkembang, baik dari yang menggunakan SMS, Sensor, WEB Server, maupun lewat Smartphone, baik yang berupa Aplikasi langsung ataupun menggunakan Aplikasi Internet Messenging, dan masih banyak lagi. Aplikasi
Internet Messenging digunakan dalam penelitian ini karena memiliki unsur praktis dan Aplikasi Internet Messenging sendiri juga sering kita gunakan dalam aktifitas sehari-hari di Smartphone kita, seperti: Whatsapp, Blackberry Messenger, LINE, Telegram, dll. Oleh karena itu, saya Menggunakan Aplikasi Blynk Dan Nodemcu Esp 8266” yang diharapkan sistem kendali ini dapat membantu dalam pengontrolan lampu di rumah dan dapat di terapkan di konsep-konsep Smart Home untuk mengontrol alat alat elektronik lainnya.

B. Alat Dan Bahan Serta Total Biaya:

  1. NodeMcu V3 Rp.50.000
  2. Relay 8 Chanel Rp.45.000
  3. Step Down LM2596 Rp.32.000
  4. Saklar Kecil Rp.1000
  5. Lem Tembak Rp.5.000
  6. Kabel Jumper Rp.5000
  7. Rumah Baterai Isi 4 Rp.14.500
  8. Baterai Tipe 18650 4pcs Rp.28.000
  9. Socket Female Jack Dc RP.500
    TOTAL: Rp. 181.000

D. Proses Pemprograman Dan Menghubungkan Ke Apikasi Blynk

Bagaimana cara menggunakan BLYNK?
Pada kesempatan kali ini saya menggunakan platform dari aplikasi ANDROID, langkahlangkah awal penggunaannya yaitu :

  1. Download dan install aplikasi melalui “PlayStore“
  2. Buka aplikasi, dan silahkan sign up new account atau login menggunakan
  3. Buat new project, dan pilihlah salah satu module yang akan Anda gunakan maupun
    aksesoris module yang berfungsi sebagai sarana terhubung ke Internet.
  4. Setelah itu drag and drop rancangan proyek Anda
  5. Kemudian klik Blynk untuk mengirimkan Token Auth melalui email
  6. Dan terakhir cek inbox email Anda dan temukan Auth Token yang dimana ini akan
    digunakan untuk program yang di downloadkan ke module
    Setelah pada smart phone selesai, beralih ke software ide arduino yang akan digunakan
    dalam memprogram serta mendownloadkan program ke module, langkah – langkahnya
    yaitu :
  7. Download file .zip rilis terbaru
  8. Unzip itu file tersebut yang didalam terdapat file library
  9. Peletakan Library pada OS
  10. Mac : (home directory)/Documents/Arduino/libraries
  11. PC (Windows) : My Documents -> Arduino -> libraries
  12. Linux : (home directory)/sketchbook/libraries
    Tutorial Pertama – app BLYNK untuk kendali ESP8266
    Bahan yang diperlukan yaitu :
  13. Library Module ESP8266
  14. Libray Blynk
  15. Smart Phone Android
  16. Komputer + Software IDE Arduino

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