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What can I do with a micro USB cable?
It’s easy to use, simply connect the micro USB connector to your device and plug the USB end into a computer or AC wall adaptor and you’re ready to go. You can use this cable to charge and sync your smartphone, tablet, camera, MP3 player, GPS unit or other micro USB enabled device.
How many pins are in a micro USB?
five pins
Types A and B have 4 pins within the connector, Mini and Micro A and B connectors generally have five pins.
Is Micro-USB better than type-C?
From the aspect of charging speed, USB Type-C is faster than the micro USB connector. According to a survey, Type-C port can be used to input or output power, while micro USB can only input power. USB Type-C port has a fast charging speed for phones at 18 Watts and can charge laptops with a maximum of 100 Watts.
What to do with unused pins on a microcontroller?
In a typical microcontroller design, it’s normal to end up with some unused pins. These may be general purpose inputs and outputs or pins that are merely labeled as “NC” in the datasheet. The quick and easy solution is to leave these pins unconnected as this means less routing for the hardware as well as less space occupied on the PCB.
Is it safe to leave output pins unconnected?
Output pins are generally safe when unconnected, but it’s a good practice to connect them to pull-up instead of pull-down resistors to minimize idle currents. Having external resistors also means that heat dissipation is evenly distributed instead of concentrated on the microcontroller itself. Some pins are best left unconnected.
How are data pins D + and D-on a USB?
I have found that many USB wall chargers use a resistive voltage divider to set the D+ and D- pins to a specific voltage, usually between 2 and 3 volts. Other USB wall chargers short the D+ and D- pins together with no connection to anything else.
Is there an ideal way to handle data pins?
There is no ideal way to handle USB data pins to provide compatibility and “fast charge”. There could be many different chargers, and there are many USB devices/phones/tablets that need charging. Historically there were two approaches: The device is a “smart device”.