hi all, im having an issue with a voltage divider circuit.
i have 12v on the input then 150k and 10k in series going to ground. For some reason i am not getting any voltage at the output - well 3mV but shouldbe getting 0.75 ish. the output is directly connected to analog input on ardunio, and grounded to arduino ground, What i have noticed is that the 150k resistor when coupled up drops its valvue to about 86k and gives the same value across both resistors when coupled, i.e from 12v to ground.
any advice?
i have 12v on the input then 150k and 10k in series going to ground. For some reason i am not getting any voltage at the output - well 3mV but shouldbe getting 0.75 ish. the output is directly connected to analog input on ardunio, and grounded to arduino ground, What i have noticed is that the 150k resistor when coupled up drops its valvue to about 86k and gives the same value across both resistors when coupled, i.e from 12v to ground.
any advice?