Iteaduino Leonardo
iteadstudio.com
2012-07-17
4
Tech Support: [email protected]
11
D10
PWM/A10
PB6
12
D11
PWM
PB7
13
D12
A11
PD6
14
D13
PWM
PC7
15
A0
PF7
16
A1
PF6
17
A2
PF5
18
A3
PF4
19
A4
PF1
20
A5
PF0
Power Supply
The Arduino Leonardo can be powered via the micro USB connection or with an
external power supply. The power source is selected automatically.
External (non-USB) power can come either from an AC-to-DC adapter (wall-wart) or
battery. The adapter can be connected by plugging a 2.1mm center-positive plug
into the board's power jack. Leads from a battery can be inserted in the Gnd and Vin
pin headers of the POWER connector.
The board can operate on an external supply of 7 to 23 volts. If supplied with less
than 7V, however, the 5V pin may supply less than five volts and the board may be
unstable.
The power pins are as follows:
VIN.
The input voltage to the Iteaduino board when it's using an external power
source (as opposed to 5 volts from the USB connection or other regulated power
source). You can supply voltage through this pin, or, if supplying voltage via the
power jack, access it through this pin.
5V.
The regulated power supply used to power the microcontroller and other
components on the board. This can come either from VIN via an on-board regulator,
or be supplied by USB or another regulated 5V supply.
3V3.
A 3.3 volt supply generated by the on-board regulator. Maximum current
draw is 250 mA.
GND.
Ground pins.
IOREF.
The voltage at which the i/o pins of the board are operating (i.e. VCC for the
board). This is 5V on the Iteaduino Leonardo.
