Thank you for taking the time to submit your bug/issue! Please use the points below as a guide when submitting.
Device & model you are using (Ex: Arduino Uno with Manual Connection using USB)
What dashboard are you using? (Web)
Please describe the bug / issue as detailed as possible. Attaching the code and any relevant screenshots would be very helpful!
I have connected my Arduino Uno using manual connection but my board is not connecting and dashboard is not displaying
can you share the code you are using?
/*
This sketch connects to the Cayenne server using an ESP8266 WiFi module as a shield connected via a hardware serial to an Arduino.
The CayenneMQTT Library is required to run this sketch. If you have not already done so you can install it from the Arduino IDE Library Manager.
Steps:
1. Install the ESP8266SerialLibrary.zip library via the Arduino IDE (Sketch->Include Library->Add .ZIP Library) from the Cayenne extras/libraries
folder (e.g. My Documents\Arduino\libraries\CayenneMQTT\extras\libraries) to compile this example.
2. Connect the ESP8266 as a shield to your Arduino. This example uses the Serial1 hardware serial pins available on the Mega. You can also try
using a software serial, though it may be less stable.
3. Set the Cayenne authentication info to match the authentication info from the Dashboard.
4. Set the network name and password.
5. Compile and upload the sketch.
6. A temporary widget will be automatically generated in the Cayenne Dashboard. To make the widget permanent click the plus sign on the widget.
NOTE: This code requires ESP8266 firmware version 1.0.0 (AT v0.22) or later.
*/
//#define CAYENNE_DEBUG // Uncomment to show debug messages
#define CAYENNE_PRINT Serial // Comment this out to disable prints and save space
#include <CayenneMQTTESP8266Shield.h>
// WiFi network info.
char ssid[] = "ssid";
char wifiPassword[] = "wifiPassword";
// Cayenne authentication info. This should be obtained from the Cayenne Dashboard.
char username[] = "----";
char password[] = "";
char clientID[] = "----";
// Set ESP8266 Serial object. In this example we use the Serial1 hardware serial which is available on boards like the Arduino Mega.
#define EspSerial Serial1
ESP8266 wifi(&EspSerial);
void setup()
{
Serial.begin(9600);
delay(10);
// Set ESP8266 baud rate
EspSerial.begin(115200);
delay(10);
Cayenne.begin(username, password, clientID, wifi, ssid, wifiPassword);
}
void loop()
{
Cayenne.loop();
}
// Default function for sending sensor data at intervals to Cayenne.
// You can also use functions for specific channels, e.g CAYENNE_OUT(1) for sending channel 1 data.
CAYENNE_OUT_DEFAULT()
{
// Write data to Cayenne here. This example just sends the current uptime in milliseconds on virtual channel 0.
Cayenne.virtualWrite(0, millis());
// Some examples of other functions you can use to send data.
//Cayenne.celsiusWrite(1, 22.0);
//Cayenne.luxWrite(2, 700);
//Cayenne.virtualWrite(3, 50, TYPE_PROXIMITY, UNIT_CENTIMETER);
}
// Default function for processing actuator commands from the Cayenne Dashboard.
// You can also use functions for specific channels, e.g CAYENNE_IN(1) for channel 1 commands.
CAYENNE_IN_DEFAULT()
{
CAYENNE_LOG("Channel %u, value %s", request.channel, getValue.asString());
//Process message here. If there is an error set an error message using getValue.setError(), e.g getValue.setError("Error message");
}
i used usb connector and esp8266 wifi modules but the board is not getting connected.
this code is for arduino mega which has extra hardware serial. though you can use it for arduino uno which is quite unstable.
you need to connect the esp8266 to uno TX and RX pins throught a voltage divider. try this code:
/*
This sketch connects to the Cayenne server using an ESP8266 WiFi module as a shield connected via a hardware serial to an Arduino.
The CayenneMQTT Library is required to run this sketch. If you have not already done so you can install it from the Arduino IDE Library Manager.
Steps:
1. Install the ESP8266SerialLibrary.zip library via the Arduino IDE (Sketch->Include Library->Add .ZIP Library) from the Cayenne extras/libraries
folder (e.g. My Documents\Arduino\libraries\CayenneMQTT\extras\libraries) to compile this example.
2. Connect the ESP8266 as a shield to your Arduino. This example uses the Serial hardware serial pins available on the UNO.
3. Set the Cayenne authentication info to match the authentication info from the Dashboard.
4. Set the network name and password.
5. Compile and upload the sketch.
6. A temporary widget will be automatically generated in the Cayenne Dashboard. To make the widget permanent click the plus sign on the widget.
NOTE: This code requires ESP8266 firmware version 1.0.0 (AT v0.22) or later.
*/
//#define CAYENNE_DEBUG // Uncomment to show debug messages
//#define CAYENNE_PRINT Serial // Comment this out to disable prints and save space
#include <CayenneMQTTESP8266Shield.h>
// WiFi network info.
char ssid[] = "";
char wifiPassword[] = "";
char username[] = "";
char password[] = "";
char clientID[] = "";
// Set ESP8266 Serial object. In this example we use the Serial1 hardware serial which is available on boards like the Arduino Mega.
#define EspSerial Serial
ESP8266 wifi(&EspSerial);
void setup()
{
delay(10);
// Set ESP8266 baud rate
EspSerial.begin(115200);
delay(10);
Cayenne.begin(username, password, clientID, wifi, ssid, wifiPassword);
}
void loop()
{
Cayenne.loop();
}
// Default function for sending sensor data at intervals to Cayenne.
// You can also use functions for specific channels, e.g CAYENNE_OUT(1) for sending channel 1 data.
CAYENNE_OUT_DEFAULT()
{
// Write data to Cayenne here. This example just sends the current uptime in milliseconds on virtual channel 0.
Cayenne.virtualWrite(0, millis());
// Some examples of other functions you can use to send data.
//Cayenne.celsiusWrite(1, 22.0);
//Cayenne.luxWrite(2, 700);
//Cayenne.virtualWrite(3, 50, TYPE_PROXIMITY, UNIT_CENTIMETER);
}
// Default function for processing actuator commands from the Cayenne Dashboard.
// You can also use functions for specific channels, e.g CAYENNE_IN(1) for channel 1 commands.
CAYENNE_IN_DEFAULT()
{
CAYENNE_LOG("Channel %u, value %s", request.channel, getValue.asString());
//Process message here. If there is an error set an error message using getValue.setError(), e.g getValue.setError("Error message");
}
i have replaced the code sent by you and i have installed the cayenne libraries still, “Waiting for the board to connect” is the only thing i can see…
make sure the esp8266 baud rate is set to 9600.
yeah everything was set up to the mark but still no connection
can you share the output of your serial monitor?
This is the status of the serial monitor.
do you have an arduino mega or any other esp8266 development board like nodemcu or wemos. As i said earlier it is quite unstable on arduino uno and difficult to debug.
the output i get is
can you try setting the esp8266 baud rate to 115200 and give it a try
Hii i tried with baudrate 115200 but no use can i connect my arduino device using usb port A/B .
you need to follow the steps and use the code from here Cayenne-MQTT-Arduino/SerialUSBConnection.ino at master · myDevicesIoT/Cayenne-MQTT-Arduino · GitHub
