Hi, welcome to the tutorial from Robojax. My name is Ahmad Shamshiri. In this video, I'm going to show you first how to use a shunt resistor to measure current up to 500 or even higher using Arduino in the next project. Then, we are going to measure the current using a shunt resistor and display the current on the LCD. So, some people who just need to display the current will use that project. In the next project, I'm going to show you how to measure any voltage with Arduino. I will show you all the calculations and derivations. Then we are going to combine the shunt resistor and display and create an energy meter which will show you the voltage, current, power, energy, time, and all these features on the screen. Or if you want to use it without the screen, I will provide you the code. Let's get started with this. There are many ways to measure current with Arduino, including different types of sensors made for this purpose. I have a lot of videos related to those. I try to put the link below this video in the description. But in this one, we are using a shunt resistor that is sold separately. This has a 75 millivolts rating, and we are going to use analog read of Arduino to read that voltage and do the calculation to display the current or get the current for other purposes that you want. This shunt resistor is sold for different current ratings. For this shunt resistor, there are two versions sold. This is a 100 ampere 75 millivolts, and as you can see, this is a 0.5 tolerance version. And this is a 50 ampere 75 millivolts, same thing but smaller and it has plastic. On one hand, this is...
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