// set pin modes // 设置引脚模式 pinMode(RPLIDAR_MOTOR, OUTPUT); delay(1000); // 启动雷达转动 digitalWrite(RPLIDAR_MOTOR, HIGH); } void loop() { if (IS_OK(lidar.waitPoint())) { float distance = lidar.getCurrentPoint().distance; //distance value in mm unit //距离值以毫米为单位 ...
直接上代码,这里要注意的一点是username和password是在连接到云端mqtt broker的时候需要填入的,可以通过这个在线工具生成。 #include"EspMQTTClient.h"#include<ArduinoJson.h>#include<TimeLib.h>#definetempPin 34// https://esp32io.com/tutorials/esp32-lm35-temperature-sensor#defineADC_VREF_mV 3300.0// in ...
on GPIO4p4.value(0)# set pin to high levelp4.value(1)# set pin to low levelp5=Pin(5,Pin.IN)# create input pin on GPIO2print(p5.value())# get value, 0 or 1p4=Pin(4,Pin.IN,Pin.PULL_UP)# enable internal pull-up resistorp5=Pin(5,Pin.OUT,value=1)# set pin high on ...
delay(500); }//client.setServer(mqtt_server,1883);//设定MQTT服务器与使用的端口client.setCallback(leddev);//设定回调程序,当ESP32收到订阅消息时会调用此方法}voidleddev(char* topic,byte* payload, unsignedintlength) {if((char)payload[0] =='1') { digitalWrite(18, HIGH);//亮灯}else{ dig...
be mapped to any pins//#define TFT_MISO 19//#define TFT_MOSI 23//#define TFT_SCLK 18//#define TFT_CS 15 // Chip select control pin//#define TFT_DC 2 // Data Command control pin//#define TFT_RST 4 // Reset pin (could connect to RST pin)//#define TFT_RST -1 // Set TFT...
// constants won't change. They're used here to set pin numbers: constintbuttonPin=15;// the number of the pushbutton pin constintledPin=2;// the number of the LED pin // variables will change: intbuttonState=0;// variable for reading the pushbutton status ...
p5 = Pin(5, Pin.OUT,value=1) #setpin highoncreation p6 = Pin(6, Pin.OUT, drive=Pin.DRIVE_3) #setmaximum drive strength 引脚范围(含):0-19、21-23、25-27、32-39。这些对应 ESP32 芯片实际的 GPIO 管脚号。注意许多最终用户板使用他们自己的临时引脚编号(例如标记为 D0、D1 等)。有关电路...
// set pin numbers const int touchPin = 4; const int ledPin = 2; const int threshold = 30; // 设置阈值 int ledState = LOW; // the current state of the output pin int touchState; // the current reading from the input pin ...
() failed: "));Serial.println(error.f_str());return;}bool lightOn = doc["data"]["light_switch"];bool dehumiOn = doc["data"]["fan_switch"];if (lightOn){digitalWrite(LIGHTPIN,HIGH);}else{digitalWrite(LIGHTPIN,LOW);}if (dehumiOn){digitalWrite(FANPIN,HIGH);}else{digitalWrite(FANPIN...
voidsetup(){xTaskCreate(taskCode,"TaskName",10000,NULL,1, &taskHandle);attachInterrupt(digitalPinToInterrupt(pin), isr, RISING);} 在这个例子中,当引脚上的电平上升时,ISR会唤醒taskCode任务。taskCode任务在收到通知后可以处理中断事件。 互斥量