nigelmercier
Member level 2
- Joined
- Nov 3, 2009
- Messages
- 47
- Helped
- 0
- Reputation
- 0
- Reaction score
- 0
- Trophy points
- 1,286
- Location
- United Kingdom
- Activity points
- 1,622
I want to make a replacement fuel gauge display for a boat, using a PIC microcontroller.
The sensor is a variable resistor activated by a float in the fuel tank; one terminal is connected to the 0V rail (although it may be possible to isolate it if necessary). The resistance of the sensor is to to be verified, but is likely to be either 0 Ohm to 180 Ohm, or 0 Ohm to 300 Ohm.
The existing display is a moving coil meter in series with the sensor and the 12V rail.
What would be the best way to use the existing sensor?
The sensor is a variable resistor activated by a float in the fuel tank; one terminal is connected to the 0V rail (although it may be possible to isolate it if necessary). The resistance of the sensor is to to be verified, but is likely to be either 0 Ohm to 180 Ohm, or 0 Ohm to 300 Ohm.
The existing display is a moving coil meter in series with the sensor and the 12V rail.
What would be the best way to use the existing sensor?