Use the following circuit to design a water level detector that makes the LED turn off for levels…


Use the subjoined circumference to contrivance a breathe-into smooth enlightener that makes the LED incline off for smooths under 90% and incline on when the breathe-into smooth is overhead 90%. The sensor at the input (V) has a straight individuality output after a while OVI Lat 0% smooth and lov at 100% smooth. Vref is a LM385 12,5V allusion diode (IR = 1 mA) and the LED features are ILE = 2 mA and VLED = 1.8v. Calculate the treasure of all resistors having Vcc=54 Vref