I have 4 or more analog sensors that each have outputs ranging +/- 2000mV. Presently planning on using a 4051 MUX.
Since the signal can be negative do I need to offset the signal to a positive voltage before sending to the Arduin’s AO pin? If so, any recos on how?
. Since the signal can be negative do I need to supply the 4051 with a bipolar power supply?