Pro Micro Module with ATmega32U4, 5V, 16MHz, Arduino compatible
The Pro Micro module is equipped with an Atmel AVR ATmega32U4 microcontroller with an integrated USB controller. The module is compatible with Arduino
Pro Micro Module with ATmega32U4, 5V, 16MHz, Arduino compatible
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The Pro Micro is similar to the Pro Mini except it uses an ATmega32U4 rather than an ATmega328 microcontroller on board. The USB transceiver inside the 32U4 incorporates USB connectivity on-board and does away with a bulky external USB interface. This tiny micro-controller 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 for Rx and Tx.
Pro Micro ATmega32U4 5V 16MHz Leonardo replaces ATmega328 Pro Mini Arduino
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Pro Micro With The Bootloader ATmega32U4 5V/16MHz Module