Nowadays, the development of technology is very vast, many conventional systems have turn into an automatic system. Using technology, conventional systems can be turn into an automatic system. In this design, it will change an access system in wedding reception that is changing the guest book filling from manual to automatic using a barcode and a camera. This system also uses a website filled with registry form, attendance form, guest book form and editing form. Moreover, this design has two modules, detection module and register module. The register module function as a guestbook substitute, the detection modul functions as guest detector that pass through and give signal to the register module. Beside register and detection module, a PC (personal computer) is used to update photos to website. In the website, has a data form addition, guestbook form, invitation list form and reservation form. Website functions as a media to process data. Data processing uses a database. Basically every guest will get a card filled with a username and password to access to the website and a barcode as an ID. After some tests, this system manages to delete, add and edit data from the database. Moreover, guests can look into the guestbook, invintation list and make a reservation. With this success this access system can fill a guest book automatically.

Trash bins are available in various places, but many people are still littering. Trash dumped carelessly can cause unpleasant odors, germs and bacteria that cause illness. To revive the public, several bins are made as attractive as possible to increase public interest to dispose trash in place. The trash designed can open the cover automatically, detects the incoming trash and trash detecting capacity when fully filled. When the trash is put in the trash bin, it will be detected and will be immediately issued to the sounds stored via MP3 module that sound "Thank you for throwing trash in its place, keep the environment clean around you". Furthermore, when the photodiode detects the trash that has been fully filled, data will be sent to the LED indicator module through the radio frequencies gaussian frequency shift keying (GFSK) modulation. Based on the tests performed, the entire sensor module, processor module, the transmitter module and receiver module work properly and effectively. The system has been designed in expectation helping to help the people to dispose of trash in place.

Sawalaksa Buana Farm was established in 2015, in Cimaung village, West Java. The area is about 1200 m2, there are two cages in the area. The first cage was used as a feedlot with a capacity of 24 bulls. The second cage, used as a cow shed for breeding, has a capacity of 20 cows. Another area is a cattle feed warehouse and a fermentation area for making feed. Cow food is the result of processing corn stalk waste by fermentation, and the Sawalaksa Buana farm produces this food. Corn stalk waste is obtained from farmers around the farm. The lighting system in the enclosure and the surrounding environment uses LED bulbs, 28 watts of power. Installation of lights in the area around the cage without using a lamp housing, both for the inside and outside/the environment. In accordance with the shape of this LED lamp, its use is more appropriate for the inside of the room, but in this farm, besides being used for the cage area, it is also used for the outside, namely the environment and around the road. The partners' problems are lack of understanding in the selection and placement of LED lights, already using LED lights, but lack of detailed specifications, selection of shapes and lamp housings that are not appropriate for lighting around the cage and for the area around the road. The solution offered is in the form of retrofitting lights on the cowshed and its environment to optimize the use of LED lights and lamp housings. The method of implementing PKM is in the form of field surveys, analyzing and replacing lamps and lamp houses in cattle pens and their environment. The results obtained from the lighting of the cage can be optimized, namely by using the type of lamp according to its designation, the use of the lamp housing and the selection of the appropriate lamp power. Thus, the purpose of implementing this PKM can be fulfilled.ABSTRAK:Peternakan Sawalaksa Buana berdiri tahun 2015, di desa Cimaung, Jawa Barat. Luas area sekitar 1200 m2, terdapat dua kandang di area tersebut.  Kandang pertama dipakai sebagai kandang penggemukan berkasipasitas 24 ekor sapi jantan. Kandang kedua, dimanfaatkan sebagai kandang sapi betina untuk pembibitan/breeding, berkapasitas 20 ekor sapi betina. Area lain berupa gudang makanan sapi dan area fermentasi pembuatan pakan. Makanan sapi berupa hasil pengolahan limbah batang jagung dengan cara difermentasi, dan makanan ini diproduksi sendiri oleh peternakan Sawalaksa Buana. Limbah batang jagung diperoleh dari petani sekitar peternakan. Sistem pencahayaan pada kandang dan lingkungan sekitarnya menggunakan lampu bohlam LED, daya 28 watt. Pemasangan lampu pada area sekitar kandang tanpa menggunakan rumah lampu, baik untuk bagian dalam dan luar/lingkungan. Sesuai dengan bentuk lampu LED ini, penggunaannya lebih tepat untuk ruangan bagian dalam, namun di peternakan ini, selain digunakan untuk area kandang, juga untuk bagian luar yaitu lingkungan dan sekitar jalan. Permasalahan mitra adalah kurang paham dalam pemilihan dan penempatan lampu LED, sudah menggunakan lampu LED, namun spesifikasi kurang detil, pemilihan bentuk dan rumah lampu yang kurang tepat untuk pencahayaaan sekitar kandang dan untuk area sekitar jalan. Solusi yang ditawarkan berupa retrofit lampu pada kandang sapi dan lingkungannya untuk mengoptimalkan penggunaan lampu LED dan rumah lampu. Metode pelaksanaan PKM berupa survei lapangan, menganalisis dan penggantian lampu dan rumah lampu pada kandang sapi dan lingkungannya. Hasil yang diperoleh pencahayaan kandang dapat dioptimalkan, yaitu dengan penggunaan jenis lampu sesuai peruntukannya, penggunaan rumah lampu dan pemilihan daya lampu yang sesuai. Dengan demikian tujuan pelaksanaan PKM ini dapat terpenuhi

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This design aims to create a robot that can search the ball, approach the ball, and keep the ball from the field/own goalpost towards the pitch area/the opponent's goalpost also pay attention to the position of the obstacles and the robot's position in the field. There are various movements such as looking for the ball, dribbling, and avoid the opponent. To be able to perform that movements the robot must be able to know what is the definition of the ball, the opponent, and goalpost. To know these objects then there must be a sensor that can read and that sensor is camera. The robot can know the object based on the different colors of each object caught by the camera. The capture of the camera then processed into a processor and the processor will determine the movement on the robot by sending current to the circuit driving the robot. Processor filters out the colors in turn at each color used. Processor then looks for the coordinates of the midpoint, and the area of the object detected. All values of the coordinates of the midpoint and the area of each color are used to determine the movement of the robot. Robot driving uses 3 driver motors DC, motors DC, and Omni wheels. The movements of the robot are going forward, rotating left/right, and standing still. The test results of the designed the robot successfully searched for the ball, approached the ball, kept the ball from the field/own goalpost towards the pitch area/the opponent's goalpost, and was prevented from going off the field.