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The Arduino team is now shipping their latest creation - the Leonardo. It is the first Arduino to use Atmel’s ATmegaXU4 series chip with built-in USB....
There are four more digital pins. The Uno has 14 digital pins: D0-D13. The Leonardo has 18: D0-D17. The extra pins have been mapped to the ICSP header...
The Leonardo has 7 PWM pins instead of 6. ATmega32U4 also has a new timer, timer4 which has 10 bits and uses a PLL to count at 64MHz. Their mappings a...
There are 12 analog input pins available on the Leonardo. The board has the same 6 analog pin header along the side for pins A0-A5. For the extra 6 pi...
The pins supporting I2C/TWI previously used analog pins A4 & A5. Now these pins are located at digital pins D2 & D3. While the SDA and SCL pins are in...
There is now a second serial port. The primary port is built into the USB interface and the Tx/Rx LEDs are attached to it. The secondary port is locat...
Of course the most exciting new feature is direct USB support. That means it can operate as an actual USB device. It can emulate a computer mouse, key...
There are two things you must do before using your new Leonardo board. First, you must upgrade your Arudino IDE to version 1.01. It adds the support ...
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