Pemeriksaan detak jantung dan suhu tubuh merupakan parameter tanda vital yang mendasar bagi paramedis dalam menentukan kondisi fisik pasien. Pemeriksaan detak jantung dan suhu tubuh dilakukan oleh petugas medis umumnya menggunakan elektrokardiogram dan termometer. Penggunaan kedua alat ini masih memiliki kelemahan karena selalu dilakukan berulang-ulang dan membutuhkan konsentrasi untuk mendapatkan nilai yang akurat. Metode ini niscaya akan menimbulkan beberapa masalah, seperti waktu yang dibutuhkan oleh tenaga medis cukup lama dalam menentukan diagnosis, menambah beban staf medis dalam melakukan pemeriksaan, dan meningkatkan biaya yang harus dikeluarkan oleh pihak pengelola dalam menyediakan peralatan medis. Sensor yang digunakan dalam penelitian ini terdiri dari sensor AD8232 sebagai sensor detak jantung yang diubah dalam bentuk denyut per menit (bpm) dan sensor DS18b20 sebagai pendeteksi suhu tubuh dalam derajat celcius (0C). Penelitian ini bersifat fundamental dan bermanfaat dalam mengurangi beban tenaga medis, mencegah terjadinya kesalahan diagnostik terutama dalam pemeriksaan detak jantung dan suhu tubuh. Hasil dari desain yang diusulkan menunjukkan bahwa pendeteksi detak jantung dan sensor suhu tubuh bekerja dengan baik.

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The aim from this research is to design a device who can make grow and fash horticultural plant in inside a room without side-effect of sun-light with arduino mega as the brain who had control all of the system with the power for monitoring and control the light, temperature of the room, soil damp and watering the plans. Subtitute the sun-light for photosinthesis process exploit LED grow light is red and blue color, while for temperature detection inside the room used temperature sensor DHT22,chiller as a freeze tool and for detection a sum soil damp less than 280, the motor pump will active for doing watering the plans.Lettuce-plan and leady vegetable who has product from different system appropriate with combination/domination ligh who has already used, for lettuce-plan dominate with blue light and dominan red light produce lettuce is not good enough while for light combination  blue and red, lettuce-plan who has produce looking good, the are many leaf-sum, is nit brittle, and growth very fast. For leafy vegetable from three combination/dominate light who used for produce in the same condition is growth very fast, has tall stem, and small, the less leafe sum (distance) and the leave color is yelow.

Building or home security systems at this time are needed because there are still many security systems that can trigger crime, one of which is the use of padlock or conventional door locks and security that has not worked automatically. A security system is needed which has a high level of security and is automatic so that it does not bother users. Security systems are often a problem, namely the low level of security, how to use is not easy, and not automatic. The way to overcome this problem is to create a security system that has tight security, easy to use, works continuously automatically and can be connected to the user's mobile phone. Based on research that has been made this security system shows one of the security systems that have a high level of security because it is equipped with an infrared sensor that serves to detect the presence of humans, the camera takes pictures if the infrared sensor detects humans, a fingerprint sensor that functions as access to open the door and all The sensor works automatically and continuously and can be connected to mobile phones through the internet, this security system works well and can be relied upon.

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