OLIMEX© 2014
AVR-T32U4 user's manual
7.4 Extension pins
For your convenience the pads are named individually near each of them. Please take extra care
about the numbering but consider that there might be offset.
Also note that the board comes with no connectors soldered on the pin holes. Before being able to
connect with a shield you have to solder connecters yourself.
Pad name
Signal
Pad name
Signal
AREF
AREF
D13(UEXT_#CS)
PF7/ICP3/CLK0/OC4A
RESET
RST
D12
PD6/T1/#OC4D/ADC9
#HWB (BUT)
PE2/#HWB
D11
PB7/PCINT7/OC0A/OC1C/
#RTS
A5
PF0/ADC0
D10
PB6/PCINT6/OC1B/OC4B/
ADC13
A4
PF1/ADC1
D9
PB5/PCINT5/OC1A/#OC4B/
ADC12
A3
PF4/ADC4/TCK
D8
PB4/PCINT4/ADC11
A2
PF5/ADC5/TMS
D7 (BOOT_LED_
INT6/AIN0/PE6
A1
PD6/ADC6/TDO
D6
PD7/T0/OC4D/ADC10
A0
PF7/ADC7/TDI
D5
PC6/OC3A/#OC4A
PD5(TXLED)
PD5/XCK/CTS
D4
PD4/ICP1/ADC8
D17(MISO)
PB3/PDO/PCINT3/M
ISO
D3 (SCL)
PD0/OC0B/SCL/INT0
D16(MOSI)
PB2/PDI/PCINT2/
MOSI
D2 (SDA)
PD1/SDA/INT1
D15(SCK)
PB1/PCINT1/
SCLK
D1 (TXD)
PD3/TXD1/INT3
D14
PB0/SS/PCINT0
D0 (RXD)
PD2/RXD1/INT2
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