Simple First Analog Read

Getting Started
1

Hi, I have a reed switch connected to a Photon. I want to read and publish the voltage of the circuit with the reed switch. here is a small extract of the code:

switchValue = analogRead(A7);
    Serial.println(switchValue);
Particle.publish("Value", String(switchValue));

This works, but when i goto the Particle Console to see the output I get:
Event name “Value”. Which is correct
Data as “Null” instead of the voltage readout between 0 and 4095

Any idea how i can actually see the output instead of Null?
Thanks
MGM

2

So you do get sensible data over serial?
Any chance we could see your entire code? Preferably shared with the share link from the web IDE.

3

@teppich, how is your read switch connected (power, pin)?

4

Why use analogRead() and not digitalRead() for a reed switch?
You may also want to publish the event as PRIVATE