For using ESP8266 family devices-
Add device Arduino- don't worry about a "board" type
because the ESP hasn't been added yet-
This should generate a "token". Copy it, don't forget it, then just leave the Dashboard open for a bit.
Upload this sketch using ArduinoIDE,
and your ESP should be enabled through the Dashboard.
After uploading the sketch, you will no longer need to use the FTDI232 serial interface. The ESP should be connected using WiFi at this point.
Then, just add the device and add the widgets you need from the Cayenne dashboard.
Skip that silly "Step 1" instruction when you add widgets-
You do NOT need to run a skecth each time you add a widget-
just run this ONE sketch to allow the Arduino to communicate w/Cayenne.
// Cayenne authentication token. This should be obtained from the Cayenne Dashboard.
char token = "YourCayenneToken";
// Your network name and password.
char ssid = "YourSSID";
char password = "YourPassword";
Cayenne.begin(token, ssid, password);