I have a Inductive sensor wich depending on speed changes the resistance is this right?
Wich simple, small circuit do i need to make the alternating singnal go digital? sow the microcontroller can measure the pulses?
I tried to make it work with a transistor but looks like when putting 0,4 volts on the gate there are 0,5 on the pic.
When i adjust the 2nd adjustable resistor wich is in series with the sensor.
Then the voltage on the input pin increases
Sow my situation is: How to make
an smitt trigger input, or how to convert some analog signals to digital ones?? am i done when i use the ST (smitt trigger) inputs my pic cpu has???
What i have tried is to Put the sensor in series with a pot.
I calculated that the value from the pot should be 7500ohms, because my sensor gives 1000ohm in rest, 1100 when slowturning anyway its difficult to measure.
Regards,
Tks
Wich simple, small circuit do i need to make the alternating singnal go digital? sow the microcontroller can measure the pulses?
I tried to make it work with a transistor but looks like when putting 0,4 volts on the gate there are 0,5 on the pic.
When i adjust the 2nd adjustable resistor wich is in series with the sensor.
Then the voltage on the input pin increases
Sow my situation is: How to make
an smitt trigger input, or how to convert some analog signals to digital ones?? am i done when i use the ST (smitt trigger) inputs my pic cpu has???
What i have tried is to Put the sensor in series with a pot.
I calculated that the value from the pot should be 7500ohms, because my sensor gives 1000ohm in rest, 1100 when slowturning anyway its difficult to measure.
Regards,
Tks