文章/答案/技术大牛

发布

社区首页 >问答首页 >如何在铜网应用(coap协议)上获取超声波传感器的输入值

问如何在铜网应用(coap协议)上获取超声波传感器的输入值
EN

Stack Overflow用户

提问于 2021-06-07 17:57:11

回答 1查看 57关注 0票数 0

我不能在copper.I中使用'GET‘，我知道超声波传感器不能像光一样设置(二进制数据)。但是我只想了解一下我创建的if参数的描述

   if (jarak < 50) {
    Serial.println ("jarak Aman ");
    
    }
   
   else {
    Serial.println ("harus diisi");

这是完整的代码

#include <ESP8266WiFi.h>
#include <coap_server.h>
#include <Ultrasonic.h>


#define triggerPin  D8
#define echoPin     D7

char * duration, jarak;

coapServer coap;

//WiFi connection info
const char* ssid = "ZTE-d17d4e";
const char* password = "amatapit";

bool LEDSTATE;

//Setup


void setup() {
  yield();


  pinMode(triggerPin, OUTPUT);
  pinMode(echoPin, INPUT);
  //serial begin
  Serial.begin(115200);

  WiFi.begin(ssid, password);
  Serial.println(" ");

  // Connect to WiFi network
  Serial.println();
  Serial.println();
  Serial.print("Connecting to ");
  Serial.println(ssid);
  WiFi.begin(ssid, password);
  while (WiFi.status() != WL_CONNECTED) {
    //delay(500);
    yield();
    Serial.print(".");
  }
  Serial.println("");
  Serial.println("WiFi connected");
  // Print the IP address
  Serial.println(WiFi.localIP());

  
  // LED State
  pinMode(16, OUTPUT);
  digitalWrite(16, HIGH);
  LEDSTATE = true;

  pinMode(5, OUTPUT);
  digitalWrite(5, HIGH);
  //LEDSTATE = true;




  // add server url endpoints.
  // can add multiple endpoint urls.

  coap.server(callback_light, "light");
  coap.server(callback_sensor, "sensor");

  // start coap server/client
  coap.start();
  // coap.start(5683);
}

void loop() {
  coap.loop();
  delay(1000);

long duration, jarak;
   
  digitalWrite(triggerPin, LOW);
  delayMicroseconds(2); 
  digitalWrite(triggerPin, HIGH);
  delayMicroseconds(10); 
  digitalWrite(triggerPin, LOW);
  duration = pulseIn(echoPin, HIGH);
   //inches = microsecondsToInches(duration);
//    cm = microsecondsToCentimeters(duration);
   jarak = duration/29/2;
   Serial.print("Jarak :");
   Serial.println(jarak);
   Serial.print(" cm");
   Serial.println("");
   if (jarak < 50) {
    Serial.println ("jarak Aman ");
    
    }
   
   else {
    Serial.println ("harus diisi");
   }
   
  delay(500);


}



// CoAP server endpoint URL
void callback_light(coapPacket *packet, IPAddress ip, int port,int obs) {
  Serial.println("light");

  // send response
  char p[packet->payloadlen + 1];
  memcpy(p, packet->payload, packet->payloadlen);
  p[packet->payloadlen] = NULL;
  Serial.println(p);

  String message(p);

  if (message.equals("0"))
  {
    digitalWrite(16,LOW);
    Serial.println("Lampu Mati");
  }
  else if (message.equals("1"))
  {
    digitalWrite(16,HIGH);
    Serial.println("Lampu Menyala");
  } 
  char *light = (digitalRead(16) > 0)? ((char *) "Lampu Menyala:") :((char *) "Lampu Mati");
  
   //coap.sendResponse(packet, ip, port, light);
   if(obs==1)
    coap.sendResponse(light);
   else
    coap.sendResponse(ip,port,light);
 
}


void callback_sensor(coapPacket *packet, IPAddress ip, int port,int obs) {
  Serial.println("sensor");

// send response
  char p[packet->payloadlen + 1];
  memcpy(p, packet->payload, packet->payloadlen);
  p[packet->payloadlen] = NULL;
  Serial.println(p);

  String message(p);
 if (message.equals("1"))
  {
   // digitalWrite(16,LOW);
    Serial.println(jarak);
  }
  else if (message.equals("2"))
  {
   // digitalWrite(16,HIGH);
    Serial.println(jarak);
  } 


  
  char *sensor = ((jarak) > 0)? ((char *) "Nyala nih") :((char *) "Mati");
 
  
  
   //coap.sendResponse(packet, ip, port, sensor);
   if(obs==1)
    coap.sendResponse(sensor);
   else
    coap.sendResponse(ip,port,sensor);
}#include <ESP8266WiFi.h>
#include <coap_server.h>
#include <Ultrasonic.h>


#define triggerPin  D8
#define echoPin     D7

char * duration, jarak;

coapServer coap;

//WiFi connection info
const char* ssid = "ZTE-d17d4e";
const char* password = "amatapit";

bool LEDSTATE;

//Setup


void setup() {
  yield();


  pinMode(triggerPin, OUTPUT);
  pinMode(echoPin, INPUT);
  //serial begin
  Serial.begin(115200);

  WiFi.begin(ssid, password);
  Serial.println(" ");

  // Connect to WiFi network
  Serial.println();
  Serial.println();
  Serial.print("Connecting to ");
  Serial.println(ssid);
  WiFi.begin(ssid, password);
  while (WiFi.status() != WL_CONNECTED) {
    //delay(500);
    yield();
    Serial.print(".");
  }
  Serial.println("");
  Serial.println("WiFi connected");
  // Print the IP address
  Serial.println(WiFi.localIP());

  
  // LED State
  pinMode(16, OUTPUT);
  digitalWrite(16, HIGH);
  LEDSTATE = true;

  pinMode(5, OUTPUT);
  digitalWrite(5, HIGH);
  //LEDSTATE = true;




  // add server url endpoints.
  // can add multiple endpoint urls.

  coap.server(callback_light, "light");
  coap.server(callback_sensor, "sensor");

  // start coap server/client
  coap.start();
  // coap.start(5683);
}

void loop() {
  coap.loop();
  delay(1000);

long duration, jarak;
   
  digitalWrite(triggerPin, LOW);
  delayMicroseconds(2); 
  digitalWrite(triggerPin, HIGH);
  delayMicroseconds(10); 
  digitalWrite(triggerPin, LOW);
  duration = pulseIn(echoPin, HIGH);
   //inches = microsecondsToInches(duration);
//    cm = microsecondsToCentimeters(duration);
   jarak = duration/29/2;
   Serial.print("Jarak :");
   Serial.println(jarak);
   Serial.print(" cm");
   Serial.println("");
   if (jarak < 50) {
    Serial.println ("jarak Aman ");
    
    }
   
   else {
    Serial.println ("harus diisi");
   }
   
  delay(500);


}



// CoAP server endpoint URL
void callback_light(coapPacket *packet, IPAddress ip, int port,int obs) {
  Serial.println("light");

  // send response
  char p[packet->payloadlen + 1];
  memcpy(p, packet->payload, packet->payloadlen);
  p[packet->payloadlen] = NULL;
  Serial.println(p);

  String message(p);

  if (message.equals("0"))
  {
    digitalWrite(16,LOW);
    Serial.println("Lampu Mati");
  }
  else if (message.equals("1"))
  {
    digitalWrite(16,HIGH);
    Serial.println("Lampu Menyala");
  } 
  char *light = (digitalRead(16) > 0)? ((char *) "Lampu Menyala:") :((char *) "Lampu Mati");
  
   //coap.sendResponse(packet, ip, port, light);
   if(obs==1)
    coap.sendResponse(light);
   else
    coap.sendResponse(ip,port,light);
 
}


void callback_sensor(coapPacket *packet, IPAddress ip, int port,int obs) {
  Serial.println("sensor");

// send response
  char p[packet->payloadlen + 1];
  memcpy(p, packet->payload, packet->payloadlen);
  p[packet->payloadlen] = NULL;
  Serial.println(p);

  String message(p);
 if (message.equals("1"))
  {
   // digitalWrite(16,LOW);
    Serial.println(jarak);
  }
  else if (message.equals("2"))
  {
   // digitalWrite(16,HIGH);
    Serial.println(jarak);
  } 


  
  char *sensor = ((jarak) > 0)? ((char *) "Nyala nih") :((char *) "Mati");
 
  
  
   //coap.sendResponse(packet, ip, port, sensor);
   if(obs==1)
    coap.sendResponse(sensor);
   else
    coap.sendResponse(ip,port,sensor);
}

esp8266

coap

arduino-ultra-sonic

回答 1

Stack Overflow用户

发布于 2021-06-08 14:49:49

要分析问题，您还可以尝试其他客户端，例如libcoap或Californium。如果这仍然会导致麻烦，IP capture可以帮助理解这种情况。

或者，你的问题更多的是关于你的服务器端代码而不是关于coap？然后，来自你的服务器的一些日志可能有助于理解它是如何工作的，并找到那里的问题。

票数 0

页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持

原文链接：

https://stackoverflow.com/questions/67869559

复制

相似问题

问如何在铜网应用(coap协议)上获取超声波传感器的输入值
EN

回答 1

Stack Overflow用户

社区

活动

圈层

关于

腾讯云开发者

热门产品

热门推荐

更多推荐

问如何在铜网应用(coap协议)上获取超声波传感器的输入值EN

回答 1

Stack Overflow用户

社区

活动

圈层

关于

腾讯云开发者

热门产品

热门推荐

更多推荐

问如何在铜网应用(coap协议)上获取超声波传感器的输入值
EN