เนื่องจากเครื่องโวลต์มิเตอร์ที่ใช้ใ

Because the voltmeter used in education, and is a model which usually reads the analog value from such tools will have aberrations from the observer are approx 280-380 baht, which is relatively very high prices. Made with speculated that if has to create a voltmeter used in education by low cost and price, which is applied when you import any side. On one side, and then will make the value of a voltmeter used in education this has increased from the original value.From the relevant issues and research group, therefore, is thought to create a voltmeter that has been applied in the measurement of labor movement in the electric battery. By then, there was the low cost price. There is a small and effective by writing commands from the program into the circuit to make the display onto the screen, which LED in education is useful and can be custom fabricated is a device that has a low production cost, and easy to find materials. Use the funds to create the most appropriate and not to be used in scientific experiments ranging from education to elementary education, and precision machines, which generated Voltmeter is useful to the education budget, less because of the ability to alter and create your own. From easy to find materials.

Since voltmeter used in education and a uniform analog which usually read from the instrument will have the expected movement of the observer. It will cost about 280-380 baht, the price is quite high. Publishers have realized that if the construction of a voltmeter used in education. The low cost And falling prices Which, when brought into use on either side. One side This will make the value of the voltmeter used in this study was the increased value of the original
problem. And related research, the preparation had the idea to build a voltmeter with applications in the measurement of labor mobility in electric batteries. The unit is small, low cost and effective. A written statement from the program to the circuit to display on the LED screen, which is useful in the field of education and is a self-invented. The device has a low production cost. And use materials that are easy to find Do not use the funds to build it. And suitable for use in educational science experiments ranging from elementary to higher education. And precision Which voltmeter generated will benefit the school with a small budget. The ability to modify and create their own works. From materials that are readily available

Because of the voltmeter is used in education and will be the uniform analog which normally แล้วการอ่าน value from such tools will deviate from the observer. The price of approximately $280-380 The price is very high. The organizer is aware that if there is a volt meter used in the field of education, the cost low, and the prices are down, which when introduced applied in any aspects. One side, it will make the value of the voltmeter used in this study have an increased value from the original.Problems and researches of the organizer had the idea to create the volt meter is applied in the measurement of mobile pay electric batteries The machine that is low-cost, small and efficient. By writing down the order from the program circuit for display on screen LED, which is useful for the study and can be invented it. A device with low manufacturing cost and use of materials which are easy to find funds to build much. And suitable to use in a science experiment, from elementary school to higher education and มีความแม่นยำ. The machine voltmeter created will be helpful to schools with small budget. Because it can modify and created works. From easy to find materials.