RANCANG BANGUN SORTIR DAN HITUNG LEMBAR KERTAS A4 OTOMATIS MENGGUNAKAN SENSOR LDR DAN APLIKASI BLYNK

The sorter and counting process of sheets paper still manually in several companies. So, in this study designed a tool that can automatically sorter and count paper based of paper quality. Paper is said to be suitable for use when there are no stains on a clean white sheet of paper, and on the other hand, the paper is said to be unfit for use when the paper is stained with ink. In this research, the LDR sensor functions as a sorting sensor, the resistance value received on the paper will be calculated. When the LDR captures a light resistance value less than 75, the paper will be categorized as a good paper quality, and vice versa when the LDR captures a light resistance of more than 75, the paper will be categorized as a dirty paper quality. next process the paper will be pushed to each shelf, this process involves a photodiode as a paper counter. When the paper passes through the photodiode, the process will be counted as one cycle or one paper. Furthermore, the paper will be separated into different racks according to the paper quality using the MG955 servo motor. In the servo motor test, the angular movement is 10º for good paper racks and 60º for dirty paper racks. After going through the process, the overall results of the paper data will be sent to NodeMCU ESP8266 and displayed on the blynk application. Keywords: LDR, Photodioda, Motor Servo, NodeMCU ESP8266.

ANGULAR MOVEMENT PROGRAM CALCULATION PROCEDURE SPACECRAFT WHEN TAKING THE SURFACE OF THE EARTH IN AREA MODE

Currently increased interest in satellite images of the Earth's surface with high resolution terrain (1 to 10 m). To obtain such images, you must use a long focus optical system (OS) having a limited field of view that does not allow the images of the large width. To increase the effectiveness of shooting in modern space systems (SS) Earth observation provides the opportunity after shooting a segment of the Earth's surface to redirect the OS to another area and spend it shooting. With sufficient speed shift OS it is possible to survey two or more adjacent parcels, which is almost equivalent to the corresponding increase in the width of the field of view of the removing apparatus. In this connection there is the task of restoring the OS, which is solved by the use of appropriate hardware and software control the angular movement of the removing apparatus. When creating the SS there is also the need to solve the following tasks: calculation of the program angular motion in a given length of the removable sections and a predetermined number of adjacent strips to be shot, with the purpose of definition of system requirements, spacecraft (SC) control and calculation under given characteristics of the system orientation of the SC possible number of the maximum length and remove adjacent portions of the surface of the Earth. To solve these tasks the mathematical model software of angular motion of the SC. Given the necessary initial data, mathematical model and method of calculation of kinematic parameters of a software angular motion of a SC in the mode of area highway shooting adjacent sections of the Earth's surface located at a predetermined distance from a trace route SC; examples and results of numerical calculations of the programmes angular motion by moving the instrument in remote sensing.