May 2025
Beginner to intermediate
798 pages
10h 10m
Chinese
Content preview from 《Arduino 烹饪书》第三版
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数字和模拟引脚
表F-1和F-2显示了 Arduino Uno 板和 Mega 板的数字和模拟引脚。Arduino "栏是 ATmega168/328，"Mega "栏是 ATmega1280/2560。
端口列列出了引脚使用的物理端口--有关如何通过直接写入端口来设置引脚的信息，请参阅配方 18.11。第 18 章引言中包含有关定时器使用的更多详细信息。下表显示了
-
USART RX 为硬件串行接收
-
USART TX 是硬件串行传输
-
Ext Int 为外部中断（后跟中断编号）
-
PWM TnA/B 是定时器 n 的脉宽调制（
analogWrite）输出。 -
MISO、MOSI、SCK 和 SS 是 SPI 控制信号
-
SDA 和 SCL 是 I2C 控制信号
| Arduino 168/328 | Arduino Mega（0-19 引脚） | |||||
|---|---|---|---|---|---|---|
| 数字引脚 | 港口 | 模拟引脚 | 使用方法 | 港口 | 模拟引脚 | 使用方法 |
|
0 |
PD 0 |
USART RX |
PE 0 |
USART0 RX，引脚 Int 8 |
||
|
1 |
PD 1 |
USART TX |
体育 1 |
USART0 TX |
||
|
2 |
PD 2 |
Ext Int 0 |
体育 4 |
PWMT3B、INT4 |
||
|
3 |
PD 3 |
PWMT2B，扩展输入 1 |
PE 5 |
PWMT3C、INT5 |
||
|
4 |
PD 4 |
PG 5 |
PWMT0B |
|||
|
5 |
PD 5 |
PWMT0B |
体育课 3 |
PWMT3A |
||
|
6 |
PD 6 |
PWMT0A |
PH 3 |
PWMT4A |
||
|
7 |
PD 7 |
PH 4 |
PWMT4B |
|||
|
8 |
PB 0 |
输入捕捉 |
PH 5 |
PWMT4C |
||
|
9 |
PB 1 |
PWMT1A |
PH 6 |
PWMT2B |
||
|
10 |
PB 2 |
PWMT1B、SS |
PB 4 |
PWMT2A，引脚 Int 4 |
||
|
11 |
PB 3 |
PWMT2A，MOSI |
PB 5 |
PWMT1A，引脚 Int 5 |
||
|
12 |
PB 4 |
SPI MISO |
PB 6 |
PWMT1B，引脚 Int 6 |
||
|
13 |
PB 5 |
SPI SCK |
PB 7 |
PWMT0A，引脚 Int 7 |
||
|
14 |
PC 0 |
0 |
PJ 1 |
USART3 TX，引脚 Int 10 |
||
|
15 |
PC 1 |
1 |
PJ 0 |
USART3 RX，引脚 Int 9 |
||
|
16 |
PC 2 |
2 |
PH 1 |
USART2 TX |
||
|
17 |
PC 3 |
3 |
PH 0 |
USART2 RX |
||
|
18 |
PC 4 |
4 |
I2C SDA |
PD 3 |
USART1 TX，扩展 Int 3 |
|
|
19 |
PC 5 |
5 |
I2C SCL |
PD 2 |
USART1 RX，扩展输入 2 |
|
| Arduino Mega（引脚 20-44） | Arduino Mega（45-69 引脚） | |||||
|---|---|---|---|---|---|---|
| 数字引脚 | 港口 | 使用方法 | 数字引脚 | 港口 | 模拟引脚 ... | |
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