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UNO R3 Arduino Compatible Board, 2-Unit Pack! Equipped with Atmega 328P, and CH340 USB chipset. - DOOGOODS DOOGOODS Microcontroller: ATmega328P Operating Voltage: 5V Input Voltage (recommended): 7-12V Input Voltage (limit): 6-20V Digital I/O Pins: 14 (of which 6 provide PWM output) DC Current per I/O Pin: 20 mA DC Current for 3.3V Pin: 50 mA Flash Memory: 32 KB (ATmega328P) of which 0.5 KB used by bootloader SRAM: 2 KB (ATmega328P) Clock Speed : 16 MHz

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