我有一个应用程序，它连接到io.adafruit MQTT，并在有新数据可用时发布到我的提要，没有问题。
我正在与Arduino合作一个ESP8266-01节目。
我通过设置到的连接并在我的头中发布信息来做到这一点？(void setup((前的空格如下：
#define AIO_SERVER "io.adafruit.com"
#define AIO_SERVERPORT 1883
#define AIO_USERNAME "xxxxxxxx"
#define AIO_KEY "xxxxxxxxxxxxxxxxxxxxxxx"
WiFiClient client;
Adafruit_MQTT_Client mqtt(&client, AIO_SERVER, AIO_SERVERPORT, AIO_USERNAME, AIO_KEY);
Adafruit_MQTT_Publish temperature = Adafruit_MQTT_Publish(&mqtt, AIO_USERNAME "/feeds/temperature");
Adafruit_MQTT_Publish level = Adafruit_MQTT_Publish(&mqtt, AIO_USERNAME "/feeds/level");
Adafruit_MQTT_Publish level2 = Adafruit_MQTT_Publish(&mqtt, AIO_USERNAME "/feeds/level2");
Adafruit_MQTT_Publish battery = Adafruit_MQTT_Publish(&mqtt, AIO_USERNAME "/feeds/battery");
Adafruit_MQTT_Publish date = Adafruit_MQTT_Publish(&mqtt, AIO_USERNAME "/feeds/date");
Adafruit_MQTT_Publish trip = Adafruit_MQTT_Publish(&mqtt, AIO_USERNAME "/feeds/trip");
Adafruit_MQTT_Publish video1 = Adafruit_MQTT_Publish(&mqtt, AIO_USERNAME "/feeds/video");
我想这样做，这样我就可以在应用程序首次启动时添加AIO_USERNAME和AIO_KEY，用户输入他们的WiFi名称和密码。
我已经设置好了，所以用户名和密钥都保存到eprom中，并从那里读取。
我甚至重新定义了从eprom检索到的AIO_USERNAME和AIO_KEY。
void setup(){
WiFiManagerParameter customAPIKey("authorizationKey", "Authorization Code",authorizationKey, 32);
WiFiManagerParameter customAPIKey2("apiKey", "Time Zone #", apiKey, 3);
WiFiManagerParameter customAPIKey3("userNameKey", "User Name",userNameKey, 29);
wifiManager.addParameter(&customAPIKey);
wifiManager.addParameter(&customAPIKey2);
wifiManager.addParameter(&customAPIKey3);
strcpy(authorizationKey, customAPIKey.getValue());
strcpy(apiKey, customAPIKey2.getValue());
strcpy(userNameKey, customAPIKey3.getValue());
//写入eeprom
EEPROM.begin(512); //Initialize EEPROM
EEPROM.write(addr, 'A'); //Write character A
addr++; //Increment address
EEPROM.write(addr, 'B'); //Write character A
addr++; //Increment address
EEPROM.write(addr, 'C'); //Write character A
addr++; //Increment address
EEPROM.write(addr, 'D'); //Write character A
//Write string to eeprom
String uuu = authorizationKey;
Serial.print("uuu");
Serial.print(uuu);
String www = apiKey;//Homenetwork + uuu;
Serial.print("www");
Serial.print(www);
String yyy = userNameKey;
String vvv = String(www)+String(yyy)+String(",");
Serial.print("vvv");
Serial.print(vvv);
for(int i=0;i<uuu.length();i++) //loop upto string lenght www.length() returns length of string
{
EEPROM.write(0x0F+i,uuu[i]); //Write one by one with starting address of 0x0F
}
for(int i=0;i<vvv.length();i++) //loop upto string lenght www.length() returns length of string
{
EEPROM.write(0x0+i,vvv[i]); //Write one by one with starting address of 0x0F
}
EEPROM.commit(); //Store data to EEPROM
//这是我从eeprom 中检索信息的地方
void loop {
EEPROM.begin(512);
Serial.println(""); //Goto next line, as ESP sends some garbage when you reset it
Serial.print(char(EEPROM.read(addr))); //Read from address 0x00
addr++; //Increment address
Serial.print(char(EEPROM.read(addr))); //Read from address 0x01
addr++; //Increment address
Serial.println(char(EEPROM.read(addr))); //Read from address 0x02
addr++; //Increment address
Serial.println(char(EEPROM.read(addr))); //Read from address 0x03
//addr++; //Increment address
//Serial.println(char(EEPROM.read(addr))); //Read from address 0x04
//Read string from eeprom
String www;
//Here we dont know how many bytes to read it is better practice to use some terminating character
//Lets do it manually www.circuits4you.com total length is 20 characters
for(int i=0;i<32;i++)
{
www = www + char(EEPROM.read(0x0F+i)); //Read one by one with starting address of 0x0F
}
String zzz;
String uuu;
for(int i=0;i<3;i++)
{uuu = uuu + char(EEPROM.read(0x0+i));
}
String yyy = userNameKey;
String vvv;
for(int i=3;i<29;i++)
{vvv = vvv + char(EEPROM.read(0x0+i));
}
www.toCharArray(auth,33);
#define AIO_KEY auth
Serial.println("KEY");
Serial.print(AIO_KEY);
Serial.println("this");
Serial.print(www); //Print the text on serial monitor
Serial.println("that");
Serial.print(uuu);
Serial.println("those");
Serial.print(vvv);
int firstCommaIndex = vvv.indexOf(',');
String wstemp = vvv.substring(0, firstCommaIndex);
Serial.println("some");
Serial.print(wstemp);
int len = firstCommaIndex;
wstemp.toCharArray(user,len+1);
#define AIO_USERNAME user
Serial.println("userr");
Serial.print(AIO_USERNAME);
//when I print out the AIO_USERNAME and AIO_KEY I get the correct data but the app
无法连接到我在adafruit的帐户。
我已尝试将信息移动到
void MQTT_connect() {
WiFiClient client;
Adafruit_MQTT_Client mqtt(&client, AIO_SERVER, AIO_SERVERPORT, AIO_USERNAME, AIO_KEY);
Adafruit_MQTT_Publish temperature = Adafruit_MQTT_Publish(&mqtt, AIO_USERNAME "/feeds/temperature");
Adafruit_MQTT_Publish level = Adafruit_MQTT_Publish(&mqtt, AIO_USERNAME "/feeds/level");
Adafruit_MQTT_Publish level2 = Adafruit_MQTT_Publish(&mqtt, AIO_USERNAME "/feeds/level2");
Adafruit_MQTT_Publish battery = Adafruit_MQTT_Publish(&mqtt, AIO_USERNAME "/feeds/battery");
Adafruit_MQTT_Publish date = Adafruit_MQTT_Publish(&mqtt, AIO_USERNAME "/feeds/date");
Adafruit_MQTT_Publish trip = Adafruit_MQTT_Publish(&mqtt, AIO_USERNAME "/feeds/trip");
Adafruit_MQTT_Publish video1 = Adafruit_MQTT_Publish(&mqtt, AIO_USERNAME "/feeds/video");
}
但这不起作用，打开了另一个蠕虫罐头。
比如最后一行得到
expected primary-expression before '(' token
错误
是否有人建议如何更新或替换AIO_USERNAME和AIO_KEY，以便使用存储的数据？
我有一个应用程序，我用它连接到io.adafruit，并使用MQTT收集和传播我的传感器读数。我做得很好。当该应用程序首次启动时，用户输入了他们的wifi名称和密码，并使用WiFiManager登录到他们的网络，信息被存储以备日后使用。我还添加了一个要填写的时间偏移变量，并将其保存到EEPROM中
u2028正如我在最初的帖子中所描述的那样，我想添加Adafruit用户名和IOKEY。然而，由于我对它们进行了硬编码，我将这些信息的设置放在了标题中，为了让用户输入这些信息并将其保存到EEPROM中，我需要移动它们。但是在哪里。我终于想出了以下解决方案。在标题中，我创建了这些常量。
#define AIO_SERVER "io.adafruit.com"
#define AIO_SERVERPORT 1883
char apiKey[32]="";
char authorizationKey[32]="";
char userNameKey[32]="";
char auth[32]="";
String TEMP = "";
char userbattery[]= "";
char userr[29]= "";
In the void setup(){ I have this
//this adds the spots for the clientName and Key to the WiFiManager access point.
WiFiManagerParameter customAPIKey("authorizationKey", "Authorization Code",authorizationKey, 32);
WiFiManagerParameter customAPIKey2("apiKey", "Time Zone #", apiKey, 3);
WiFiManagerParameter customAPIKey3("userNameKey", "User Name",userNameKey, 29);
wifiManager.addParameter(&customAPIKey);
wifiManager.addParameter(&customAPIKey2);
wifiManager.addParameter(&customAPIKey3);
strcpy(authorizationKey, customAPIKey.getValue());
strcpy(apiKey, customAPIKey2.getValue());
strcpy(userNameKey, customAPIKey3.getValue());
然后在空环(({我放
WiFiManager wifiManager;
if (WiFi.status() == WL_DISCONNECTED) {
wifiManager.autoConnect("FloWT3");
delay(60000);}
//here I make sure I am connected to the internet.
else if (WiFi.status() == WL_CONNECTED) { Serial.println("Connected");
delay(2000);
WiFiClient client;
EEPROM.begin(512);
//I added this because when the app started up after the original write to EEPROM it would write over the first characters of each saved string so I checked to see. If it was the first time I allowed it to write to EEPROM otherwise I didn't.
String rrr = apiKey;
if (rrr.length() == 0){
Serial.print ("empty");
}
else {
Serial.print ("Not Empty");
//Here I created strings from the strcpy earlier and made sure they were saved the way I wanted.
String uuu = authorizationKey;
Serial.print("uuu");
Serial.print(uuu);
String www = apiKey;//Homenetwork + uuu;
Serial.print("www");
Serial.print(www);
String yyy = userNameKey;
//because the time offset and userName were not lengths that I could know I added a comma to each so I could split them later on.
String fff = String(www)+String(",");
String vvv = String(yyy)+String(",");
Serial.print("vvv");
Serial.print(vvv);
//Then I write the strings to EEPROM
for(int i=0;i<uuu.length();i++) //loop upto string lenght www.length() returns length of string
{
EEPROM.write(0x06+i,uuu[i]); //Write one by one with starting address of 0x0F
}
for(int i=0;i<fff.length();i++) //loop upto string lenght www.length() returns length of string
{
EEPROM.write(0x50+i,fff[i]); //Write one by one with starting address of 0x0F
}
for(int i=0;i<vvv.length();i++) //loop upto string lenght www.length() returns length of string
{
EEPROM.write(0x90+i,vvv[i]); //Write one by one with starting address of 0x0F
}
EEPROM.commit();
}
delay (1000);
//after a short delay I read the strings from EEPROM that had been saved. The delay is for the first time the app is use and the EEPROM is written and then read
String wwww;
for(int i=0;i<32;i++)
{
wwww = wwww + char(EEPROM.read(0x06+i)); //Read one by one with starting address of 0x0F
}
String zzz;
String uuuu;
for(int i=0;i<32;i++)
{uuuu = uuuu + char(EEPROM.read(0x50+i));
}
String yyyy = userNameKey;
String vvvv;
for(int i=0;i<32;i++)
{vvvv = vvvv + char(EEPROM.read(0x90+i));
}
// convert the IOKEY to a char.
wwww.toCharArray(auth,33);//**
//check to see I got the strings from EEPROM the way I wanted them.
Serial.println("this");
Serial.print(wwww); //this is the IOKEY
Serial.println("that");
Serial.print(uuuu);//this is the offset value
Serial.println("those");
Serial.print(vvvv);//this is the UserName
//Then using the commas I split off the strings I need from the full one saved to EEPROM.
int firstCommaIndex = uuuu.indexOf(',');
String dateOffset = uuuu.substring(0, firstCommaIndex);
Serial.println("most");
Serial.print(dateOffset);
int firstCommaIndexa = vvvv.indexOf(',');
String wstemp = vvvv.substring(0, firstCommaIndexa);
TEMP = wstemp;
int len = firstCommaIndexa;
//here I changed the UserName string to a char.
wstemp.toCharArray(userr,len+1);
Serial.println("some");
Serial.print(wstemp);
Serial.print(userr);
#define AIO_USERNAMES userr //This is used in the MQTT Client mqtt definition.**
Serial.println("userr");
Serial.print(AIO_USERNAMES);
则在MQTT_connect((｛
//these are the values of my sensors
float level1 = (floatFromPC);
float levela = (floatFromPC5);
uint32_t z=floatFromPC;
uint32_t p=4;
uint32_t y=(floatFromPC2-320);
if (y>500) {
y = 80;
}
float temperature1 = (floatFromPC3);
double temp2 = temperature1;
uint32_t x=temperature1;
uint32_t w=floatFromPC4;
int str_len = currentDate.length();
char v [str_len+1];
currentDate.toCharArray(v,str_len+1);
WiFiClient client;
Adafruit_MQTT_Client mqtt(&client, AIO_SERVER, AIO_SERVERPORT, AIO_USERNAMES, auth);//**AIO_USERNAMES and auth
//This is what is usually in the MQTT_connect() {
int8_t ret;
if (mqtt.connected()) {
return;
}
Serial.print("Connecting to MQTT... ");
uint8_t retries = 3;
while ((ret = mqtt.connect()) != 0) { // connect will return 0 for connected
Serial.println(mqtt.connectErrorString(ret));
Serial.println("Retrying MQTT connection in 5 seconds...");
mqtt.disconnect();
delay(5000); // wait 5 seconds
retries--;
if (retries == 0) {
// basically die and wait for WDT to reset me
while (1);
}
}
Serial.println("MQTT Connected!");
Serial.println("publishing to /get");
//Here I create a string combining UserName with the feed.
String UserString =String(TEMP) + String("/feeds/battery,aaa");
int firstCommaIndexb = UserString.indexOf(",");
String batterySt = UserString.substring(0,firstCommaIndexb);
int leng = firstCommaIndexb;
Serial.println("leng");
Serial.print(leng);
batterySt.toCharArray(userbattery,leng+1);/create a char
Serial.println("battery");
Serial.print(batterySt);
Serial.print(userbattery);
#define BATTERY userbattery
Serial.println("userb");
Serial.print(BATTERY);//this is then used in the publish definition***
Adafruit_MQTT_Publish battery = Adafruit_MQTT_Publish(&mqtt,BATTERY);//***
//and then this is the publish statement
Serial.print(F("nSending battery val "));
Serial.print(y);
Serial.print("...");
if (! battery.publish(y)) {
Serial.println(F("Failed"));
} else {
Serial.println(F("OK!"));
}
delay(500);
//For some reason when I created the publish definitions in a similar
fashion and the did the publish statements the value would be publish one
after the other in the last stated publish feed. So even though there was
a different definition for video, temperature, battery they would all be
written to the battery keeping only the last value.
//To avoid this I used the same variable to create each
definition except the feed name and fired each off before creating the
next. There is an example of the above.
这解决了如何输入UserName和IOKey并编写并从io.adafruit.com的EEPROM中读取。我希望它能帮助任何可能遇到类似问题的