Regarding Temperature Sensor Detection in Controller

[achar.deepak]

Dear All,

I designing a system where I am doing a temperature calculation using sensor and ADC. Customer requirement is that they have to detect whether the sensor is present or not by the controller. Please clarify my doubt how to detect the sensor by the controller whether it is connected or not.

Thanks
Deepak

 

[KlausST]

Hi,

Use a pullup or pulldown resistor at the ADC input.
But it depends on the used sensor,it's valid output voltage range and the circuit.

Klaus