Hey guys, i was having problems reading resistance values from an NTC thermistor. The adc value would fluctuate a lot. i figured that i go back a few steps and make sure the basics are in order.
Firstly my vref voltage was not solid so i bought a precision shunt regulator only to find out i am unsure on how to use it.
1. i do not know if i must feed this thing 5v or higher voltage
2. when i build this circuit as soon as i put a small load on the line then the voltage to vref drops. i thought this is suppose to maintain a constant solid vref but im guessing im doing something wrong. could you guys possibly assist me please?