Development of an eco-friendly coin operated fish food vending machine

Abstract

The objectives of this article is one) To design and build a coin operated fish feed vending machine 2) To determine the performance of a coin operated fish feed vending machine 3) To find the satisfaction of automatic fish feed buyers. Coin-operated tablet type The results of the research were as follows: 1) The construction result of a control system of a coin operated fish food vending machine Able to work in accordance with the specified work scope. Command by using a microcontroller to control the work. The motor controls the valve on-off the flow of fish food. The system is ready to work, waiting to receive a 10 baht coin when the 10 baht coin comes in. The system will release approximately 100 grams of fish food, which the system can operate. 2) The results of the coin-operated experiment showed that the coin selector can work for 10 baht coins into the coin slot for 75 coins that failed to pass 25 coins. The reason for not passing Can be divided as follows. 10 baht coin divided into 10 baht coin Rama 9 and 10 baht coin Rama 10. In which, if you observe the two types of coins, there will be differences, with the 10 baht coin Ratchakarn 9 having more weight and a thicker size than the 10 baht coin. From the coin-operated experiment, about 100 grams of eel fed the specified quantity was found.The control unit of the mechanism for the flow of fish food from the fish feed port. Obtained the average fish weight content of 99.6 grams, the error was 1%. From the experiment on the coin tray, it was found that The value of the volume of the coin tray The tray has a width of 10 centimeters, a length of 20 centimeters and a height of 10 centimeters, the volume is 2,000 cubic centimeters. Which will receive 2,122 coins. 3) The satisfaction evaluation of fish food buyers from the developed coin operated fish feed vending machine was found that User satisfaction level Is at a high level With an average of 4.38 or 87.60 percent