Muccus LM317 Adjustable Voltage Linear Regulator Power Supply LM317 DC-DC 4.2-40V to 1.2-37V Step Down Buck Converter Board Module

Hi! Today I will show you how to use the LM317 module. You can buy this cheap DC adjustable power supply on eBay for a little over a dollar. You can find the ebay links at the end of the description. You don’t need to buy a module that has a LED screen displaying the voltage output as they cost an extra 4$, which is about the price of a cheap multimeter that can do the same and can also be used in various DIY projects. This module is composed of the LM317 chip, which is connected to a heatsink. There is also a voltage regulator with the adjustable screw on top. These modules can have blue or green connectors but they are basically the same. Using the LM317 is very simple; all you have to do is connect it to a power supply. In this case, I used a 12 Volts 6 Amps DC power supply with a LED connector. I used a white Dupont cable to connect the positive end of the connector to the voltage i