Official Losant + Particle Setup Tutorial

[RWB]

Try this.

#1 Create a Global Variable by placing this line of code above Setup().

This creates the bucket to hold the data we put into the publishStateString bucket. It's large enough to hold all the data a Webhook can hold in a single Publish Event which is 255 bytes.

char publishStateString[256]; //This is used to hold the device status info we format and Particle Publish to Losant.

#2. Add this new publish code to your sketch.

snprintf(publishStateString, sizeof(publishStateString), "%.2f:",F );
Particle.publish("EF", publishStateString, 60, PRIVATE, NO_ACK);

#3. Make sure this is considered a Number data type in Losant.

#4. Make sure you follow what I did in the Function & Device state notes I show above.

#5. This thread should help you understand how snprintf works for formatting the data your sending to Losant to have the semi-colon in between every variable we send.

Storing very infrequent data while Photon offline (not cloud connected)

@charrold303 The C-String used to confuse me also but after playing around a bit I now see how simple they are to work with to format data before sending it in a Particle Publish. Here is how I setup a C-String (Char array) in my code to send GPS Data & Battery Voltage to Losant. First define your Char Array and change publishStateString to what ever you want it to be: [image] The 256 is the max byte size of the array which is the max size of a Particle Publish payload +1 Now I use the sn…