PPM Sensor result on LCD blinking

[TomGeorge]

Hi, @leander07

float voltageTds = analogRead(tds) * (float)5 / 1024;
float tdsValue = 2000 / 5 * voltageTds ;

Would be better

float voltageTds = analogRead(tds) * 5.0 / 1024.0;
float tdsValue = 2000.0 * voltageTds  / 5.0;

Tom...