I have a hall sensor that can measure current up to 25 A with analog output 0~5V. I am using Arduino mega board for programming. There are in total 30 hall sensors and where Arduino mega has 16 analog channel. Because of this I am planning to use multiplexer circuit.
- Is the above circuit right to build multiplexing circuit?
- How are multiple analog output values read?
- What is the purpose of selector pins S0, S1, and S2? It says that depends on state of pin it read value. Is it true or false? I mean to say, if S0, S1, and S2 are all 0, it reads analog output of hall sensor 1; if S0 = 0, S1 = 0, S2 = 1, it reads HS4. Is that correct or not?
- Is it correct that using multiplexing, I can read one value at a time, but with multiple IO connected?