You could setup each 74HC4051 mux input with a resistor divider. Like this (8 places): https://upload.wikimedia.org/wikipedia/commons/3/31/Impedance_voltage_divider.svg Assuming your ESP8266 device has a built-in voltage divider on the Analog input (a common feature of Dev boards and NodeMCU), appl...

Hi i have an 74HC4051 connected to my ESP, on that one i have 8 Resistors connected. R1 (100 ohm) = Name_1, R2 (200 ohm) = Name_2, R3 (300) Name_3, ... R8 (800) = Name_8 for each input of the 74HC4051 i want to check for one of thees resistors. so if for an exempel: Input 6 = 300 ohm and Input 3 = 7...