Hi !
I'm noob what comes with electronics, so here we go ...
Problem is that LM335 temperature sensor should give about 3 volt from Vout, but i get 4.8 volt in room temperature.
Also, there is only very little change about voltage readings (from ADC) even temperature change is 10 - 20 centigrade.
ADC is working properly and i get sensible readings from there.
LM335 is connected to PC18F452 ADC (RA0)
VDD +5V ------ 2.2Kohm -----/--- pin1 at LM335 (the left one)
RA0 -------------------------/
Ground ---------------------------pin2 at LM335 (the middle one)
pin3 at LM335 is not connected
I hope you can help me with this.
PS. i also try another sensor with similar problems, so apparently it is't the sensor or then i'm keep killing those
I'm noob what comes with electronics, so here we go ...
Problem is that LM335 temperature sensor should give about 3 volt from Vout, but i get 4.8 volt in room temperature.
Also, there is only very little change about voltage readings (from ADC) even temperature change is 10 - 20 centigrade.
ADC is working properly and i get sensible readings from there.
LM335 is connected to PC18F452 ADC (RA0)
VDD +5V ------ 2.2Kohm -----/--- pin1 at LM335 (the left one)
RA0 -------------------------/
Ground ---------------------------pin2 at LM335 (the middle one)
pin3 at LM335 is not connected
I hope you can help me with this.
PS. i also try another sensor with similar problems, so apparently it is't the sensor or then i'm keep killing those
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