The micro USB jack finds its applications in many embedded projects where serial communication or power supply is required. It can be commonly found on Mobiles phones as charging/communication ports. Similarly, it is used for the same purpose on raspberry pi, ESP modules, and much more. These sockets have 5 pins, out of which is two are used for power supply and the other two are used for data communication. This data communication can receive data from any other MCU/MPU or even a computer or mobile phone. So if you are looking for a USB option on your project which occupies less space, this might be the right choice for you.
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