Can't sprinf double value for photon

[dougal]

Looks like it should be fixed in the next firmware release:

Issues with converting float to string with sprintf

Hi, I’m trying to convert a float to a string so I can publish temperatures to Spark. However, it seems that sprintf will convert the number as a null. Searching this forum seems to indicate that this should work. Casting the variable as an int also works so it appears to be an issue with floats/double. ##Sample code void setup() { Serial.begin(9600); } void loop() { delay(2000); char t1[20]; sprintf(t1, "Value: %.02", (double) 55.21); Serial.println(t1); Spark.pub…