Alanis Robotics - Arduino Nano (Sin cable USB) Microcontroller Atmel: ATmega168 or ATmega328 Operating Voltage (logic level): 5 V Input Voltage (recommended): 7-12 V Input Voltage (limits): 6-20 V Digital I/O: Pins
Amazon.com: Dorhea Pro Mini 168 Mini ATMEGA168 5V/16MHz Electronics Development Module Compatible with Nano Microcontrol Micro Control Board : Electronics
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Amazon.com: Dorhea Pro Mini 168 Mini ATMEGA168 5V/16MHz Electronics Development Module Compatible with Nano Microcontrol Micro Control Board : Electronics