Photon, adafruit BMP280 sensor Wiring Diagram

[ScruffR]

@carbuthn

Also the particle.publish will allow the 4 publishes in one second, but may make you wait before you send another four.

That's correct. After a burst publish of four events you'd have to wait at least for seconds for the limit to lift.
But the better solution might be to incorporate all your data into one publish
e.g. like this

    Particle.publish("EnvironmentData", String::format("Temp: %.1f °C / %.1f °F, Pressure %.1f mbar, Humidity %.1f %%", cTemp, fTemp, pressure, humidity), PRIVATE);