Arduino Pro Micro ATmega32U4 5V-16Mhz, Leonardo

Hardware serial connections Rx and Tx. Running at 16MHz and 5V. This tiny little board does all of the neat-o Arduino tricks that you're familiar with

Pro Micro Type C Leonardo ATmega32U4 5V 16MHz Replace ATmega328 Arduino

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【USB Type C Port Reinforced】-This is latest the USB type C port reinforced and make it more stronger solder points. 【ATmega32U4 microcontroller】-The

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Type-c Mini Usb Pro Micro For Arduino Atmega32u4 5v/16mhz Module With 2 Row Pin Header For Leonardo Usb Interface Board - Integrated Circuits - AliExpress

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Pro Micro Compatible Board - 5V/16MHz

Hardware serial connections Rx and Tx. Running at 16MHz and 5V. This tiny little board does all of the neat-o Arduino tricks that you're familiar with