Main Changes from the older version:Add two rows of the holes for the pins. So it can be connected with normal Dubond line.Add 3 rows of the holes for wiring.Change the in-line package of ATMEGA328P t..

Arduino UNO R3 Original Board MEGA328P ATMEGA16U2 with USB CableThe Arduino Uno is a microcontroller board based on the ATmega328. It has 14 digital input/output pins (of which 6 can be used as PWM ou..

UNO Wi-Fi R3 ATmega328P ESP8266 32Mb Memory USB-TTL CH340GUno R3 AT mega 328 and WIFI ESP8266 with memory 32Mb (Megabyte). All of the modules can work together or each separately. And everyone has the..