Hi all as i am going through one of my new project
I am having problems reading some 4-20 ma sensors with Xbee AIO Adapter.
I can read correct values of sensors with raspberry pi using a 250 ohm resistor to convert 4-20ma to 1-5V and applying +12V to the sensor with and external power supply.
I can see how change the value when i apply heat to the sensor by directly connecting with Rsapberry pi
But when i connect the sensor to Xbee AIO Adapter in 4-20ma mode, its reads always the same value . This value read by sensor is not changing the value when i apply heat to the sensor.
I am not able to understand where i am facing the issue