![]() Otherwise, the VCC pin accepts clean, appropriately regulated (3.3V or 5V) power input. Voltages in that range will down-regulate to the appropriate input level. You can use the “RAW” pin with input voltages between the 12V input maximum and 1V more than the operating voltage (between 6V-12V on the 5V board, for example). If you need more than 5V of power (the standard supplied by USB) or you’re planning to use the device in the field, away from a USB supply, you may want to connect an external power supply. Your chosen version will also come into play when you upload code, so be sure you have the right board for your project. That means that if you want to interface the Pro Micro with external devices that operate at 5V, you can’t use the 3.3V version of the board. The Pro Micro version you choose (3.3V or 5V) determines the maximum allowable voltage on any given I/O pin for the board. Sparkfun Pro Micro 5v or 3.3v: Important Usage Considerations The board is available in two models: a 3.3V/8MHz version and 5V/16MHz version. Several pins that allow for serial inputs Five pins with pulse-width modulation capability Nine pins featuring ADCs for analog inputs Contains 18 I/O pins you can use as either digital ins or outs Can accept unregulated input voltages as high as 12V ![]() ![]() As a result, you can program the Pro Micro to emulate nearly any other input device, including a keyboard, mouse, or joystick. Because the ATmega32U4 chip that runs on the Pro Micro is equipped with a full-speed USB transceiver, it connects directly to your PC. Super tiny, thin, Arduino compatible board with an ATmega32U4 on board, running at 16MHz and 5V, with 4 channels of 10-bit ADC, 5 PWM pins, 12 DIOs. 2.) In device Manager, I see Yellow in several places, (under COM > Arduino Leonardo). 1.) It shows/says New Hardware FOund: Leonardo. so out of curiosity, I plugged the Pro-Micro into my netbook right now. The Pro Micro is noteworthy for its human interface device (HID) capability. (I actually brought my netbook and Pro-Micro to work today, so I can test any feedback on lunch) Thanks update: ok. Embedded System Development Boards and Kits ![]()
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