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Note: When you open the Arduino IDE software, pls go to the Tool and choose the board “Arduino Micro”
— The Pro Micro is similar to the Pro mini except with a ATmega32U4 on board. The USB transceiver inside the 32U4 allows us to add USB connectivity on board and do away with bulky external USB interface.
— This tiny little board does all of the Arduino tricks that you’re familiar with: 4 channels of 10-bit ADC, 5 PWM pins, 12 DIOs as well as hardware serial connections RX and TX. Running at 16MHz and 5V, this board will remind you a lot of your other favorite Arduino-compatible boards but this little guy can go just about anywhere. There is a voltage regulator on board so it can accept voltage up to 12V DC.
–The Pro Micro is powered with an external power supply(not via the micro USB connection),please be sure to make the power connect to the “raw” pin and the ground to GND.
ATmega32U4 running at 5V/16MHz
Supported under Arduino IDE v1.0.1
On-Board micro-USB connector for programming
4 x 10-bit ADC pins
12 x Digital I/Os (5 are PWM capable)
Rx and Tx Hardware Serial Connections
Our Smallest Arduino-Compatible Board Yet
The Datesheet for Pro micro: Datesheet_Pro_Micro_black
The Pinout for Pro micro
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