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Hardware Usage Mega
Trevor Decker edited this page Mar 27, 2015
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This document maps the hardware usage on the Arduino Mega which interfaces with the RC receiver, signal lights, brakes, steering, and battery monitor.
For more hardware details, see the ATmega 2560 Datasheet and the Arduino Mega schematic.
| Pin Number | Pin Name / Alt. Capability | Arduino | Used? | Purpose |
|---|---|---|---|---|
| 1 | PG5 ( OC0B ) | D4 (PWM) | ||
| 2 | PE0 ( RXD0/PCINT8 ) | D0 (RX0) | Yes | RBSM |
| 3 | PE1 ( TXD0 ) | D1 (TX0) | Yes | RBSM |
| 4 | PE2 ( XCK0/AIN0 ) | |||
| 5 | PE3 ( OC3A/AIN1 ) | D5 (PWM) | ||
| 6 | PE4 ( OC3B/INT4 ) | D2 (PWM) | ||
| 7 | PE5 ( OC3C/INT5 ) | D3 (PWM) | ||
| 8 | PE6 ( T3/INT6 ) | |||
| 9 | PE7 ( CLKO/ICP3/INT7 ) | Yes | RC Auton (wrong?) | |
| 10 | VCC | VCC | Yes | Power |
| 11 | GND | GND | Yes | Power |
| 12 | PH0 ( RXD2 ) | D17 (RX2) | ||
| 13 | PH1 ( TXD2 ) | D16 (TX2) | ||
| 14 | PH2 ( XCK2 ) | |||
| 15 | PH3 ( OC4A ) | D6 (PWM) | ||
| 16 | PH4 ( OC4B ) | D7 (PWM) | ||
| 17 | PH5 ( OC4C ) | D8 (PWM) | ||
| 18 | PH6 ( OC2B ) | D9 (PWM) | ||
| 19 | PB0 ( SS/PCINT0 ) | D53 (SS) | ||
| 20 | PB1 ( SCK/PCINT1 ) | D52 (SCK) | ||
| 21 | PB2 ( MOSI/PCINT2 ) | D51 (MOSI) | ||
| 22 | PB3 ( MISO/PCINT3 ) | D50 (MISO) | ||
| 23 | PB4 ( OC2A/PCINT4 ) | D10 (PWM) | ||
| 24 | PB5 ( OC1A/PCINT5 ) | D11 (PWM) | Yes | Steering Servo |
| 25 | PB6 ( OC1B/PCINT6 ) | D12 (PWM) | ||
| 26 | PB7 ( OC0A/OC1C/PCINT7 ) | D13 (PWM) | ||
| 27 | PH7 ( T4 ) | |||
| 28 | PG3 ( TOSC2 ) | |||
| 29 | PG4 ( TOSC1 ) | |||
| 30 | RESET | RESET | Yes | Reset |
| 31 | VCC | VCC | Yes | |
| 32 | GND | GND | Yes | |
| 33 | XTAL2 | XTAL2 | Yes | Crystal |
| 34 | XTAL1 | XTAL1 | Yes | Crystal |
| 35 | PL0 ( ICP4 ) | D49 | Yes | RC Steering (wrong?) |
| 36 | PL1 ( ICP5 ) | D48 | Yes | RC Brake (wrong?) |
| 37 | PL2 ( T5 ) | D47 | ||
| 38 | PL3 ( OC5A ) | D46 (PWM) | ||
| 39 | PL4 ( OC5B ) | D45 (PWM) | ||
| 40 | PL5 ( OC5C ) | D44 (PWM) | ||
| 41 | PL6 | D43 | ||
| 42 | PL7 | D42 | ||
| 43 | PD0 ( SCL/INT0 ) | D21 (SCL) | ||
| 44 | PD1 ( SDA/INT1 ) | D20 (SDA) | ||
| 45 | PD2 ( RXDI/INT2 ) | D19 (RX1) | Yes | Debug Serial |
| 46 | PD3 ( TXD1/INT3 ) | D18 (TX1) | Yes | Debug Serial |
| 47 | PD4 ( ICP1 ) | |||
| 48 | PD5 ( XCK1 ) | |||
| 49 | PD6 ( T1 ) | |||
| 50 | PD7 ( T0 ) | D38 | ||
| 51 | PG0 ( WR ) | D41 | ||
| 52 | PG1 ( RD ) | D40 | ||
| 53 | PC0 ( A8 ) | D37 | ||
| 54 | PC1 ( A9 ) | D36 | ||
| 55 | PC2 ( A10 ) | D35 | ||
| 56 | PC3 ( A11 ) | D34 | ||
| 57 | PC4 ( A12 ) | D33 | ||
| 58 | PC5 ( A13 ) | D32 | ||
| 59 | PC6 ( A14 ) | D31 | ||
| 60 | PC7 ( A15 ) | D30 | ||
| 61 | VCC | VCC | ||
| 62 | GND | GND | ||
| 63 | PJ0 ( RXD3/PCINT9 ) | D15 (RX3) | ||
| 64 | PJ1 ( TXD3/PCINT10 ) | D14 (TX3) | ||
| 65 | PJ2 ( XCK3/PCINT11 ) | |||
| 66 | PJ3 ( PCINT12 ) | |||
| 67 | PJ4 ( PCINT13 ) | |||
| 68 | PJ5 ( PCINT14 ) | |||
| 69 | PJ6 ( PCINT 15 ) | |||
| 70 | PG2 ( ALE ) | D39 | ||
| 71 | PA7 ( AD7 ) | D29 | ||
| 72 | PA6 ( AD6 ) | D28 | ||
| 73 | PA5 ( AD5 ) | D27 | ||
| 74 | PA4 ( AD4 ) | D26 | ||
| 75 | PA3 ( AD3 ) | D25 | ||
| 76 | PA2 ( AD2 ) | D24 | ||
| 77 | PA1 ( AD1 ) | D23 | ||
| 78 | PA0 ( AD0 ) | D22 | Yes | Battery Voltage |
| 79 | PJ7 | |||
| 80 | VCC | VCC | Yes | Power |
| 81 | GND | GND | Yes | Power |
| 82 | PK7 ( ADC15/PCINT23 ) | A15 | ||
| 83 | PK6 ( ADC14/PCINT22 ) | A14 | ||
| 84 | PK5 ( ADC13/PCINT21 ) | A13 | ||
| 85 | PK4 ( ADC12/PCINT20 ) | A12 | ||
| 86 | PK3 ( ADC11/PCINT19 ) | A11 | ||
| 87 | PK2 ( ADC10/PCINT18 ) | A10 | ||
| 88 | PK1 ( ADC9/PCINT17 ) | A9 | ||
| 89 | PK0 ( ADC8/PCINT16 ) | A8 | ||
| 90 | PF7 ( ADC7 ) | A7 | ||
| 91 | PF6 ( ADC6 ) | A6 | ||
| 92 | PF5 ( ADC5/TMS ) | A5 | ||
| 93 | PF4 ( ADC4/TMK ) | A4 | ||
| 94 | PF3 ( ADC3 ) | A3 | ||
| 95 | PF2 ( ADC2 ) | A2 | ||
| 96 | PF1 ( ADC1 ) | A1 | ||
| 97 | PF0 ( ADC0 ) | A0 | ||
| 98 | AREF | AREF | ||
| 99 | GND | GND | Yes | Power |
| 100 | AVCC | VCC | Yes | Power |
| Timer | Size | Alt. Capability | Used? | Purpose |
|---|---|---|---|---|
| TIMER0 | 8 bit | PWM | Yes | System Timer |
| TIMER1 | 16 bit | PWM / IC | Yes | Servo PWM |
| TIMER2 | 8 bit | PWM / Async | ||
| TIMER3 | 16 bit | PWM / IC | Yes | RC Input Capture |
| TIMER4 | 16 bit | PWM / IC | Yes | RC Input Capture |
| TIMER5 | 16 bit | PWM / IC | Yes | RC Input Capture |
RoboBuggy (pushing code ain't all we do)