Ligne 13 : |
Ligne 13 : |
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| The “Note/alternate functions” column documents other features of the pin, although some of those features might be impractical to use. | | The “Note/alternate functions” column documents other features of the pin, although some of those features might be impractical to use. |
| + | |
| + | {| class="wikitable" |
| + | ! ATmega32U4 |
| + | |- |
| + | ! pin name |
| + | | Arduino |
| + | |- |
| + | ! pin names |
| + | | Romi 32U4 Control Board |
| + | |- |
| + | ! functions |
| + | | Notes/alternate functions |
| + | |- |
| + | ! PB7 |
| + | | 11 || LCD control line (E) || Timer0 PWM output A (OC0A) |
| + | |- |
| + | ! Timer1 PWM output C (OC1C) |
| + | |- |
| + | ! UART flow control (RTS) |
| + | |- |
| + | ! Pin-change interrupt (PCINT7) |
| + | |- |
| + | ! PD4 |
| + | | 4, A6, 24 || LCD control line (RS) || Analog input (ADC8) |
| + | |- |
| + | ! Timer1 input capture pin (ICP1) |
| + | |- |
| + | ! PB3 |
| + | | 14, MISO || User pushbutton A |
| + | |- |
| + | ! LCD data line DB4 |
| + | | SPI Master Input/Slave Output (MISO) |
| + | |- |
| + | ! Pin-change interrupt (PCINT3) |
| + | |- |
| + | ! ISP programming line (PDO) |
| + | |- |
| + | ! PB0 |
| + | | 17, LED_BUILTIN_RX, SS || Red LED (RX) |
| + | |- |
| + | ! User pushbutton C |
| + | |- |
| + | ! LCD data line DB5 |
| + | | SPI slave select (SS) |
| + | |- |
| + | ! Pin-change interrupt (PCINT0) |
| + | |- |
| + | ! PC7 |
| + | | 13, LED_BUILTIN || Yellow LED |
| + | |- |
| + | ! LCD data line DB6 |
| + | | Timer4 PWM output A (OC4A) |
| + | |- |
| + | ! Timer3 input capture pin (ICP3) |
| + | |- |
| + | ! Divided system clock output (CLKO) |
| + | |- |
| + | ! PD5 |
| + | | 30, LED_BUILTIN_TX || Green LED (TX) |
| + | |- |
| + | ! User pushbutton B |
| + | |- |
| + | ! LCD data line DB7 |
| + | | UART external clock (XCK1) |
| + | |- |
| + | ! UART flow control (CTS) |
| + | |- |
| + | ! PD7 |
| + | | 6, A7, 25 || Buzzer PWM || Analog input (ADC10) |
| + | |- |
| + | ! Timer4 PWM output D (OC4D) |
| + | |- |
| + | ! Timer0 counter source (T0) |
| + | |- |
| + | ! PF6 |
| + | | A1, 19 || Battery level input (VIN/3) || Analog input (ADC6) |
| + | |- |
| + | ! JTAG test data out (TDO) |
| + | |- |
| + | ! PB6 |
| + | | 10, A10, 28 || Left Motor PWM || Analog input (ADC13) |
| + | |- |
| + | ! Timer1 PWM output B (OC1B) |
| + | |- |
| + | ! Timer4 PWM output B (OC4B) |
| + | |- |
| + | ! Pin-change interrupt (PCINT6) |
| + | |- |
| + | ! PB2 |
| + | | 16, MOSI || Left motor direction || SPI Master Output/Slave Input (MOSI) |
| + | |- |
| + | ! Pin-change interrupt (PCINT2) |
| + | |- |
| + | ! ISP programming line (PDI) |
| + | |- |
| + | ! PB5 |
| + | | 9, A9, 27 || Right motor PWM || Analog input (ADC12) |
| + | |- |
| + | ! Timer1 PWM output A (OC1A) |
| + | |- |
| + | ! Timer4 PWM output B (OC4B) |
| + | |- |
| + | ! Pin-change interrupt (PCINT5) |
| + | |- |
| + | ! PB1 |
| + | | 15, SCK || Right motor direction || SPI Clock (SCK) |
| + | |- |
| + | ! Pin-change interrupt (PCINT1) |
| + | |- |
| + | ! ISP programming line (SCK) |
| + | |- |
| + | ! PB4 |
| + | | 8, A8, 26 || Left encoder XORed input || Analog input (ADC11) |
| + | |- |
| + | ! Pin-change interrupt (PCINT4) |
| + | |- |
| + | ! PE2 |
| + | | - || Left encoder input || Hardware bootloader select (HWB) |
| + | |- |
| + | ! PE6 |
| + | | 7 || Right encoder XORed input || Analog comparator negative input (AIN0) |
| + | |- |
| + | ! External interrupt source (INT6) |
| + | |- |
| + | ! PF0 |
| + | | A5, 23 || Right encoder input || Analog input (ADC0) |
| + | |- |
| + | ! PD0 |
| + | | 3, SCL || I²C clock for Raspberry Pi communication and inertial sensors || Timer0 PWM output B (OC0B) |
| + | |- |
| + | ! External interrupt source (INT0) |
| + | |- |
| + | ! PD1 |
| + | | 2, SDA || I²C data for Raspberry Pi communication and inertial sensors || External interrupt source (INT1) |
| + | |- |
| + | ! PD2 |
| + | | 0 || Free I/O || UART receive pin (RXD1) |
| + | |- |
| + | ! External interrupt source (INT2) |
| + | |- |
| + | ! PD3 |
| + | | 1 || Free I/O || UART transmit pin (TXD1) |
| + | |- |
| + | ! External interrupt source (INT3) |
| + | |- |
| + | ! PC6 |
| + | | 5 || Free I/O || Timer3 PWM output A (OC3A) |
| + | |- |
| + | ! Timer4 PWM output A (OC4A) |
| + | |- |
| + | ! PD6 |
| + | | 12, A11, 29 || Free I/O || Analog input (ADC9) |
| + | |- |
| + | ! Timer4 PWM output D (OC4D) |
| + | |- |
| + | ! Timer1 counter source (T1) |
| + | |- |
| + | ! PF7 |
| + | | A0, 18 || Free I/O || Analog input (ADC7) |
| + | |- |
| + | ! JTAG test data in (TDI) |
| + | |- |
| + | ! PF5 |
| + | | A2, 20 || Free I/O || Analog input (ADC5) |
| + | |- |
| + | ! JTAG test mode select (TMS) |
| + | |- |
| + | ! PF4 |
| + | | A3, 21 || Free I/O || Analog input (ADC4) |
| + | |- |
| + | ! JTAG test clock (TCK) |
| + | |- |
| + | ! PF1 |
| + | | A4, 22 || Free I/O || Analog input (ADC1) |
| + | |- |
| + | ! RESET |
| + | | - || Reset pushbutton || internally pulled high, active low |
| + | |- |
| + | ! AREF |
| + | | - || - || Analog reference |
| + | |} |
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| {{Pololu-Romi-32U4-TRAILER}} | | {{Pololu-Romi-32U4-TRAILER}} |