Some improvements are needed in spraying with orchard sprayers. During the spraying process, it is also applied in the spaces between trees of cases where the tree spacing is high. For this reason, extra pesticides are consumed and harmful substances are added to the soil. Thus, the production costs increase and efficiency decreases, and also pesticide residues transferred from soil to crops cause health problems. In this study, ultrasonic sensors are placed on the right and left surfaces of the machine facing the tree. With the help of these sensors, the pesticides are sprayed as long as an object is detected within a certain distance. Spraying is stopped when the object is not detected, and this operation is carried out automatically. The developed system consists of an electronic control unit, solenoid valves, and ultrasonic sensors, controlled by a microcontroller. Thanks to this automatic control system, high rates of savings are achieved in pesticide consumption and the addition of harmful substances to the soil is prevented. In addition, thanks to the its compact structure, it can be easily mounted on existing sprayers that are controlled manually.

In this study, a test device is developed to measure the capacities and performances of high capacity battery banks and to detect broken cells. Batteries lose their performance over time due to their chemical properties, storage and usage conditions, production technologies. Some batteries may even become completely unusable long before the promised life cycle. Through this test device, the instant capacity of the battery banks is measured. Based on the data obtained, quantitative data such as state of health and nominal energy of the battery bank are calculating. It is determined whether the battery bank will meet the need according to its intended use. In this way, it is ensured to prevent possible losses by determining the battery cells or groups that need to be changed.

Özet-Bu çalışmada Android işletim sistemli herhangi bir mobil cihazla bir DA motorunun, uzaktan izlenmesi ve kontrol edilmesi için bir sistem tasarlanmış ve gerçekleştirilmiştir. Tasarlanan sistemde, motorun hız denetimini gerçekleştirmek amacıyla 32-Bit Cortex M-3 sınıfı ARM işlemci kullanılmıştır. Kontrol kartı ile mobil cihaz Bluetooth ile iki yönlü haberleşmektedir. Çalışma süresince motorun akım, gerilim ve hız bilgileri lokal denetleyici olan ARM işlemci tarafından okunarak mobil cihaza Bluetooth bağlantısı üzerinden aktarılmakta ve böylece motor uzaktan izlenebilmektedir. Ayrıca, tasarlanan kontrol yazılımı vasıtasıyla kullanıcı tarafından uzaktan girilen komutlar ARM işlemciye aktarılarak yeni değerlere göre denetim işlemi gerçekleştirilmekte ve anahtarlama elemanları için gerekli sürme sinyalleri oluşturulmaktadır. Ana ekranda gerilim, akım ve hız bilgileri sürekli olarak görüntülenmektedir. Bunun yanında başlatma ve durdurma gibi kontrol işlemleri bu ekran sayesinde gerçekleştirildiği gibi akım limiti ve hız gibi parametreler de bu yazılım üzerinden girilebilmektedir. Böylece tüm kontrol fonksiyonlarının Bluetooth teknolojisine sahip Android yüklü herhangi bir mobil cihaz ile uzaktan gerçekleştirilmesine imkan sağlanmıştır.Anahtar Kelimeler-DA motor, ARM işlemci, Android işletim sistemi, Uzaktan kontrol, Bluetooth. Remote Control and Monitoring Through a Device with Android Application of Speed Controlled DC Motor with 32 Bit ARM ProcessorAbstract-In this study, a system for remote controlling and monitoring of a DC motor with any mobile device which has Android operating system is designed and implemented. The ARM Cortex-M3 processor is used to control the motor speed. Bidirectional communication is set up between the control board and the mobile device via Bluetooth.Motor data such as current, voltage and speed are read and sent to the mobile device through Bluetooth by ARM processor. Thus, remote monitoring is achieved. In addition, entered commands are sent to ARM processor via control software and control is carried out according to new commands, and gate pulses required for static switches are generated. The voltage, current and speed data are shown in main page. Besides, control processes such as start, stop can be carried out and current and speed limit values can be entered by using this software. Thus, performing all control functions remotely with the Android installed mobile device which has Bluetooth technology is made possible.