sanddune008
New Member
Hi All,
I am designing Hub which will take in inputs from 6 sensors and based on the sensor sends control command over UART interfaced to the RS485 network.
Now how do i interface these 6 field sensors to the PIC. Which can contain at the most 3 EXT INT's.
Assuming the field sensors to be passive devices which just gives a basic trigger circuit.
Is current loop 4-20ma the way to go?
Can any one suggest a solution in the design?.
Thanks in advance
I am designing Hub which will take in inputs from 6 sensors and based on the sensor sends control command over UART interfaced to the RS485 network.
Now how do i interface these 6 field sensors to the PIC. Which can contain at the most 3 EXT INT's.
Assuming the field sensors to be passive devices which just gives a basic trigger circuit.
Is current loop 4-20ma the way to go?
Can any one suggest a solution in the design?.
Thanks in advance