对于Arduino，用pinMode将IO口设为OUTPUT的时候，其实IO的状态为“强推挽”，也就是说设为高电平时，IO口对电源正极的电阻比较小（强上拉），设为低电平时IO口对地的电阻也比较小（强下拉），这样IO口就具备了较强的驱动能力。其实也没有强到哪里去，大概几十毫安，能点亮LED而已。这里顺便提一下常见的51单片机
***/#include"LED.h"#include"Arduino.h"LED::LED(byte p,bool state):pin(p){pinMode(pin,OUTPUT);digitalWrite(pin,state);}LED::~LED(){disattach();}voidLED::on(){digitalWrite(pin,HIGH);}voidLED::off(){digitalWrite(pin,LOW);}boolLED::getState(){returndigitalRead(pin);}voidLED::dis...
每次Arduino上电或重启后,setup函数只运行一次。 这里,初始化数字引脚为OUTPUT模式: pinMode(led, OUTPUT); 1. pinMode()函数,官方解释: Configures the specified pin to be have either as an input or an output . See the Digital Pins page for details on the functionality of the pins. 1. 2. 简...
1、输出(OUTPUT)模式 2、输入(INPUT)模式 3、输入上拉(INPUT_PULLUP)模式 (仅支持Arduino 1.0.1以后版本) 在输入上拉(INPUT_PULLUP)模式中,Arduino将开启引脚的内部上拉电阻,实现上拉输入功能。一旦将引脚设置为输入(INPUT)模式,Arduino内部上拉电阻将被禁用。 设置Arduino引脚为输出(OUTPUT)模式 当引脚设置为输...
(WIFI_AIRLINK_MODE);//AirLink modebreak;default:break;}}voidsetup(){// put your setup code here, to run once:Serial.begin(9600);pinMode(ledPin,OUTPUT);// sets the digital pin as outputpinMode(myledPin,OUTPUT);// sets the digital pin as outputpinMode(KEY1,INPUT_PULLUP);pinMode(...
void setup() { // initialize digital pin PC13 as an output. pinMode(PC13, OUTPUT);}// the loop function runs over and over again forevervoid loop() { digitalWrite(PC13, HIGH); // turn the LED on (HIGH is the voltage level) delay(1000); // wait for a second digital...
License along with this library; if not, write to the Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */ #include <Arduino.h> // Declared weak in Arduino.h to allow user redefinitions. int atexit(void (* /*func*/ )()) { return 0; } ...
pinMode(pin,OUTPUT); digitalWrite(pin,state); } LED::~LED() { disattach(); }voidLED::on() { digitalWrite(pin,HIGH); }voidLED::off() { digitalWrite(pin,LOW); }boolLED::getState() {returndigitalRead(pin); }voidLED::disattach()//引脚回收,恢复到上电状态{ ...
}//The output on the Serial Monitor will be (depending on your Modbus the data will be different)://__ OK __//Response: serverID=1, FC=3, Token=00000457, length=15://01 03 0C 60 61 62 63 64 65 66 67 68 69 6A 6B//Response: serverID=1, FC=16, Token=00000458, length=19...
Move ESP8266SDFat library to master, not branch (#8460) Fix info.usedBytes calculation giving weird result (#8445) LittleFS: add overrides for Stream::send (#8386) Update to SdFat 2.1.1 with UTF-8 support (#8355) Clean up SpeedTest output, avoid div-by-0 (#8340) Libraries - Network...