The Arduino UNO is the best board to get started with electronics and coding. If this is your first experience tinkering with the platform, the UNO is the most robust board you can start playing with. The UNO is the most used and documented board of the whole Arduino family.
Microcontroller Microchip ATmega328P
Operating Voltage 5V USB Standard Type B Digital I/O Pins 14 PWM Digital I/O Pins 6 Analog Input Pins 6 Flash Memory 32 KB SRAM 2 KB EEPROM 1 KB Clock Speed 16 MHz