The objective of this study was implementation of microcontroller to construct Appl to control the operation of the Dog food exchange machine using plastic bottles system. To study an operation control of microcontroller system operation and the to create construction of a Dog food exchange machine using plastic bottles. The component of Dog food exchange machine using plastic bottles are divided into 3 parts: 1) parts of detecting plastic bottles sensor 2) part of the motor control 3) part of the vending machine. Results of the study of Dog food exchange machine using plastic bottles. used in 2 ways: 1) plastic bottle vending 2) coin vending for 10 baht. When the total number of bottles is set at 15 bottles the plastic bottle vending machine will not work until the Reset button is pressed. Can still work normally

Water became an important factor for propelling production process of any industries or factories and groundwater was option for production cost reduction especially in areas where had no surfacewater. B.Foods Product International Company Limited an affiliate of Betagro Group was located in Lop Buri Province to daily consume huge quantity of groundwater for production process in its factory. Measuring and recording levels of groundwater in 2 ground tanks related to volume of the water at time point of every 3 hours must continually be done every day in order to prevent lack of water fed into the factory that may impact of its production process. The main problem was caused of unexpected non-working of pumps. Knowing fluctuation of water levels could provide their immediate improvement and recover to avoid serious impacts. A microcontroller board could be employed to control groundwater volume in order that the company could closely follow up levels of groundwater in the ground tanks in real time and continuity. This study went on designing the microcontroller board for managing utility system and maintenance by using with level meter and wireless receiver and transmitter for testing working efficiency every 3 hours of each everyday during 1 February 2016 till 11 March 2016 totally 40 days. It was compared with those of same duration done manually. The findings revealed that the figured from 2 methods became similar and had very close relationship with each other. This could indicate that the simulated microcontroller board could be employed to automatically control groundwater volume efficiently. The company could bring it to appropriately trace levels of groundwater in the tanks in accordance with water usage behavior in each period of time for disruption of production process caused of insufficient quantity of groundwater. And this could be adaptable benefits for improvement of any organizations and also for any further studies