WiFi and Global System for Mobile Communication (GSM) based the smart home security system is a system that designed to improve security in most private housing. The main devices in this research are sensor for motion detection using Passive Infrared Sensor (PIR), Arduino Mega2560 as microcontroller board, NodeMCU V3 ESP8266 as WiFi development board that helps to prototype IoT product with few Lua script lines, or through Arduino IDE and then SIM800L as GSM module that also features GPRS support. The detection of motion is based on the principle of infrared radiation produced by human body heat which triggers a Passive Infrared Sensor (PIR). When the microcontroller received and processed the signal from human motion, then the trigger the buzzes the alarm, the microcontroller also activates the GSM module and sends SMS message to the user’s mobile phone device. This system enables to control the home by using android device, such as door, garage, and lamp in the rooms.

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Piselll.id merupakan salah satu usaha kue kering yang ada di kota Langsa. Piselll.id terletak di Dusun Mawar 2 Gampong Seulalah Kota Langsa. Usaha kue kering ini merupakan industri rumah tangga yang sedang mengalami permasalahan dalam memproduksi makanan olahan karena semakin banyaknya usaha kue kering yang ada di kota Langsa. Bahan utama yang sering digunakan saat ini untuk pembuatan kue dan roti adalah tepung terigu. Mitra juga belum mampu memproduksi tepung sendiri untuk mengurangi harga penjualan agar dapat bersaing dengan usaha roti/kue lainnya. Hal tersebut membuat mitra mengalami penurunan omzet penjualan. Solusi yang diberikan dari kegiatan pengabdian kepada masyarakat ini adalah Memberikan pelatihan cara pembuatan Mocaf; Memberikan sosialisi tentang manfaat dan keunggulan dari Mocaf; Memperkenalkan dan menyerahkan alat penggiling tepung kepada mitra. Hasil dari pelaksanaan kegiatan Pengabdian kepada Masyarakat tentang Penerapan Teknologi Pembuatan Cassava Flour (Mocaf) yaitu: Peralatan yang digunakan dalam pembuatan mocaf akan di hibahkan kepada masyarakat; Mitra akan mampu memproduksi tepung olahan dengan bahan baku yang murah dan mudah diperoleh dan tidak mengandung gluten yang dapat menurunkan imunitas tubuh. Peluang usaha akan semakin besar karena mitra akan mampu memproduksi tepung sendiri dengan olahan singkong/ubi dan dapat memproduksi aneka makanan olahan sehat dengan rasa yang lebih variatif.

There is an early flood detection tool that has been successfully designed called the Early Flood Detection (EFDe) a system that uses the Internet of Things system which can be accessed by the users through a browser or an Android smartphone. In general, this tool has an accurate sensor response to the water level reading by the sensor. The time needed for the sensor to send data to the server is 10-15 seconds. The speed of this delivery time is influenced by several factors, including sensor response, server response, and the cellular network used. The EFDe system is equipped with an alarm around the location and has 10-15 second response when the indicator shows FLOOD POTENTIAL and will not stop until the signal changed to SAFE. This EFDe System is equipped with a solar panel and solar control charger and has an independent energy source that comes from the sun and stored in batteries. That is why the EFDe system is able to send information in real-time.

Lake Maninjau is a lake formed by volcanic activity. Many human activities occur on the catchment area, but also in exploited waters. This study aims to mapping the depth of the waters in the Lake Maninjau and assess the effect of field sample distribution on the quality results of the image transformation. The data used are satellite imagery Sentinel 2A, results of point survey. The analysis technique uses the normalized difference water index algorithm, sun glint, empirical bathymetry method and linear regression. The result of the research which is has found that variations of distribution into the dispersion of the recording process of the depth of the object represented by cell. The depth of the water from the results of this transformation refers to the measurement sample in the field survey. The maximum depth of the waters is in the range of 107m. Shallow waters are predominantly distributed in the northern region which is the out late of Lake Maninjau. The southern area forms a deep basin. The distribution of this sample is in the form of an empirical bathymetry map and the relationship between the results of field measurements and the transformation with a regression value of 0.769, this indicates the consideration of total and distribution of survey sample is influence on quality of the results of the transformation.