Arduino Leonardo Data
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ABCDEFGHIJKLMNOPQRSTUVWXYZ
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PINPort BDigitalAnalogExtraTimerPIN IRQADC C#PROG
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8PB0D17SS/RXLEDPCINT0
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9PB1D15SCKPCINT1
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10PB2D16MOSIPCINT2PDI
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11PB3D14MISOPCINT3PDO
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28PB4D8A8PCINT411
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29PB5D9#A9[OC1A] / #OC4BPCINT512
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30PB6D10#A10[OC1B] / OC4BPCINT613
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12PB7D11##RST[OCOA] / OC1CPCINT7
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PINPort CDigitalAnalogExtraTimer
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31PC6D5#[OC3A] / #OC4A
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32PC7D13#CLK0ICP3 / [OC4A]
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PINPort DDigitalAnalogExtraTimerINTCMPADC C#Others
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18PD0D3#SCL[OCOB]INT0
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19PD1D2SDAINT1
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20PD2D0RXINT2AIN1
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21PD3D1TXINT3
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25PD4D4A6ICP18
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22PD5TXLEDXCK1/#CTS
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26PD6D12A11T1 / #OC4D9
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27PD7D6#A7T0 / [OC4D]10
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PINPort EDigitalAnalogExtraINTCMP
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33PE2HWB
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1PE6D7INT6AIN0
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PINPort FDigitalAnalogPROGADC C#
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41PF0D23A50
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40PF1D22A41
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39PF4D21A3TCK4
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38PF5D20A2TMS5
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37PF6D19A1TDO6
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36PF7D18A0TDI7
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Arduino digital pin names
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Arduino digital pin names with PWM functionality
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Arduino analog pin names
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Pins in male programming header
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PIN
Pin number on the ATmega32u4 44 pin package
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PORT x
Associated port line
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Digital
Digital Arduino name
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Analog
Analog Arduino name
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ADC C#
ADC Channel number
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Timer
Timer functions associated to the pin. Square brackets [ ] indicate resources used by PWM analogWrite
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PIN IRQ
PCINT lines on port B (Interrupt on pin change)
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INT
External interrupt line
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PROG
Device program/debug lines
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CMP
Analog comparator lines
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Extra
Other line usages
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Others
Other line usages
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Port registers
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DDRB, DDRC, DDRD, DDRE, DDRF
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For each bit0 : Input mode
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1 : Output mode
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PORTB, PORTC, PORTD, PORTE, PORTF
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For each bitIn input mode0 : No pull-up
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1 : Pull-up activated
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In Output mode
0 : Low level output
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1 : High level output
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PINB, PINC, PIND, PINE, PINF
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For each bitReading
0 : Pin state is Low
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1 : Pin state is High
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Writing
0 : Does nothing
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1 : Toggles PORTx bit
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Port Mappings
Prescaler
PWM Usage
Timers
Images