No abstract

The pandemic period has greatly affected various business sectors which also resulted in the decreasing income of most people. This is coupled with the implementation of PPKM (Enforcement of Restrictions on Community Activities) in several areas, so that community activities are very limited. One of the impacts of this pandemic is being felt in the hotel business, where many hotels and inns are not selling well and this business has to go out of business. Hotels and inns that can still survive are forced to reduce the number of employees and reduce operational costs, one of which is the cost of room maintenance. Along with the number of vacant rooms due to lack of customers and reduced number of employees, resulting in vacant rooms are rarely opened which will become damp and stuffy. If this is left for a long time will result in the growth of mold in the hotel room, so a process of monitoring temperature and humidity is needed. These problems can be solved by utilizing the Internet of Things (IoT). From the results of testing the temperature and humidity sensor readings using DHT11, the results are quite accurate with an error rate of 1.30% for measuring temperature and 3.79% for measuring humidity. Making an IoT system using Blynk can be done very easily because it does not require programming skills in its manufacture.

Dengan semakin maraknya media pemasaran online maka jika tetap bertahan dengan pemasaran secara manual atau pelanggan harus datang ke toko akan mengakibatkan penurunan penjualan dan akan tertinggal dengan toko lain yang sudah melaksanakan pemasaran secara online, mitra pengabdian masyarakat mempunyai usaha dalam bidang jual beli komputer second beserta asesories komputer baik baru maupun second, mengingat harga komputer baru lebih mahal dibandingkan dengan komputer second maka masih banyak peminat terhadap barang second tersebut karena masih dapat berfungsi sesuai dengan kebutuhan pelanggan, dalam pengabdian masyarakat ini dibuatlah suatu pemasaran secara online pada sebuah toko komputer second, yang akan memudahkan pelanggan melihat dan memesan komputer second melalui internet tanpa harus datang ke lokasi toko, diharapkan dengan adanya media pemasaran secara online ini penjualan menjadi meningkat.