Arduino Uno board

The first block to add when you start a new project: a development board. The ‘Todo’ list at the bottom of the screen will remind you to add one. Development boards are under Hardware'.

The attributes of the Arduino Uno board-block are:

• Name: By default the name is ‘uno’, but you can assign any name you want
• On-board LED (on pin 13): By default ‘led1’ is filled in, but any other name is fine.
  • if you do not want to use the on-board LED, remove the name assigned here. You can then use pin 13 for other purposes. For example, as a system activity LED

• Source for LED: You can get back to this later, to add for example a blinker or a variable as a source.
• Comment: An optional field for entering text.

• CPU: ATmega328P
• CPU flash memory: 32KB
• SRAM: 2KB
• EEPROM: 1KB
• Analog inputs: 6
• PWM digital I/O: 6
• Clock: 16 MHz

Arduino Uno

Reference