Pro Micro uses ATMEGA32U4 itself USB update program 5V/16M single -chip microcomputer development board

Ro Micro 5V 1

Principle diagram:

Link: https://pan.baidu.com/s/1wxc9yk6lr- vyhh1ec7xgkw

Extract code: 1234

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6M

Features:

Atmega32u4 runs at 5V/16MHz

Micro USB interface programming on the board of directors

4 10 -bit ADC pins

12 digital I / O (5 pwm capacity)

RX and TX hardware serial connection

illustrate:

This small board is all neat tips: 4 channels 10 digits ADC, 5 PWM pins, 12 DIOs and hardware serial connecting RX and TX you are familiar.Running at 16MHz and 5V, this committee will remind you a lot of other compatible circuit boards you like, but this little guy can go anywhere.There is a voltage regulator on the ship, so it can accept the voltage up to 12VDC.If you are a powerboard with unstable supply, you must connect to the "RAW" no VCC pin.This latest version is correct, so that the pin 14 is the correct label.We also added a PTC fuse and diodes to protect the power circuit and correct the RX and TX LED circuits

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