I am using Arduino to read values of six Analog Sensors using Arduino's Analog input pins.
I burnt the program on the board and when opened the serial monitor without connecting any of the sensor, it is showing random values on every pin instead of showing zero as no sensor is connected.
is there any step that i am missing?
please help!
It is normal that disconnected pins float around and give random values.
So, don't let it bug you.
-br
An unconnected input pin is basically an antenna - you are seeing signals picked up from
nearby circuitry. Drive that pin from a sensor and it'll follow the sensor (which is a much stronger
signal source).