No abstract

The design of this explosive detector is an alternative low-cost explosive detector device that can detect the presence of explosives by comparing the value of the magnetic field so that an object will be known to be an explosive or not. This tool can provide additional assistance in the Juanda airport area which still rarely uses conventional explosive detector equipment because the price is still expensive. This design uses a magnetometer sensor that can calculate the magnitude of the magnetic field in the explosives and will send analog inputs in the form of voltage values to the Arduino displayed with LCD media and sound from the buzzer so that the category of explosives can be detected.

Security at the door is very important for everyone. because the door acts as access to enter or exit a private room. Therefore, the key as a door security plays an important role in implementing the security system. With the frequent occurrence of key loss and also the rise of increasingly sophisticated crime rates in breaking into or destroying conventional keys, it becomes a thought for the author to develop a security system that is more private in nature. That is by using an application that is expected to be a security in the form of a password which will certainly be more profitable. The design of this tool is made with Arduino as a processing center and a servo motor to function to move the doorlock. The next stage Arduino will give a command to the servo to open the door. Only certain people who have access passwords can open doors in rooms that use voice recognition. Meanwhile, those who do not have an access password will not be able to unlock the door in the server room. So that the design of a smart door lock tool that uses Arduino-based voice recognition will provide a more computerized level of security and access

Kerupuk melarat adalah sejenis kerupuk yang menggunakan pasir Lumajang sebagai mediapenggorengan dengan keuntungan lebih murah, mudah didapat dan tahan lama. Tahapan produksikerupuk melarat dimulai pengeringan kemudian digoreng. Pengeringan kerupuk melarat DesaGrabagan sangat dipengaruhi oleh cuaca (konvensional), pada musim kemarau membutuhkanwaktu 6 jam sedangkan musim penghujan lebih lama kurang lebih 2 hari. Solusi yang ditawarkanoleh tim pelaksana pengabdian kepada masyarakat adalah penggunaan mesin pengering kerupukmelarat elektrik tipe kabinet menggunakan LPG sebagai pemanas. Tujuan program pengabdiankepada masyarakat ini adalah mengembangkan softskill dan hardskill pengusaha kerupuk melaratdi Desa Grabagan melalui penggunaan teknologi tepat guna dalam pengeringan kerupuk sehinggasemakin meningkatkan produktifitas industri dan efisiensi produksi. Metode yang digunakanadalah sosialisasi, demo penggunaan mesin dan pendampingan. Penggunaan mesin pengeringelektrik maka produksi lebih efisien kurang lebih 300%, lebih higienis, dapat dikontrol temperaturmesin dan menghemat lahan untuk penjemuran.

Currently, the control of cultivated plants is still manual, where farmers watering and checking soil moisture on the planting object. However, we cannot avoid technological progress in this life because technological progress will run following scientific advances. Therefore, every innovation is created to provide positive benefits for life. The ideal chili cultivation planning requires information about climatic conditions that play a significant role in chili cultivation is rainfall. Plant growth will be incredible if there is sufficient water supply; humidity for chili plants ranges from 60-80%. Therefore, chili cultivation planning must pay attention to rainfall because related to water availability. Smart Garden prototype design is a solution for taking appropriate actions during extreme weather and reducing human error. A prototype Smart Garden-based Internet of Things (IoT) using the Blynk app as User Interface (GUI) in the monitoring system and using the Soil Moisture sensor as input for soil moisture conditions, where the results of the process are sent via Wemos D1 mini-module to the Blynk server to display the state of soil moisture and automatic watering.