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hi there, i'm trying to measure impedance by applying sinusoidal wave to a chemical gel. it cannot operate by dc voltages. i can achieve to measure resistance from a dc circuit and send the solution to an LCD screen by reading two channels as follows: my code: #include <LiquidCrystal.h> LiquidCrystal lcd(12, 11, 5, 4, 3, 2); void setup() { // set up the LCD's number of columns and rows: lcd.begin(16, 2); lcd.print("impedance :"); } void loop() { int sensorValue1 = analogRead(A0); int sensorValue2=analogRead(A1); // Convert the analog reading (which goe
