Arduino Pro Micro - Small Low Cost Versatile Board

Pro Micro With The Bootloader Black/blue Atmega32u4 5v/16mhz Module Controller Mega32u4 Leonardo For Arduino - Integrated Circuits - AliExpress

Arduino Campatible Mini Pro 5V 16M Board at Rs 250/piece, Arduino UNO Board in Mumbai

running at 5V/16MHz Supported under IDE v1.0.1 On-Board micro-USB connector for programming 4 x 10-bit ADC pins 12 x Digital I/Os

OSOYOO Pro Micro 5V/16MHz Module Board with 2 Row pin Header Replace wit Pro Mini for Arduino

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The Arduino Pro Mini is SparkFun's minimal design approach to Arduino. It's essentially a 3.3v Arduino that runs an 8 MHz bootloader on a super small,

Arduino Pro Mini 328 - 3.3V/8 MHz

OSOYOO Pro Micro 5V/16MHz Module Board with 2 Row pin Header Replace wit Pro Mini for Arduino : Electronics

running at 5V/16MHz Supported under IDE v1.0.1 On-Board micro-USB connector for programming 4 x 10-bit ADC pins 12 x Digital I/Os

OSOYOO Pro Micro 5V/16MHz Module Board with 2 Row pin Header Replace wit Pro Mini for Arduino