brksb46041
New Member
A little background: I have a diesel vehicle i have converted to run on waste vegetable oil, in order to do this i have to start and shut down the engine on diesel, then switch to veggie oil (stored in a seperate tank) once it is heated to sufficient temperature (by means of a heat exchanger in the tank and engine coolant). Right now the setup appears very crude because i have analog gauges and SPST switches mounted in random locations in the truck.
Basically what i am wanting to do is use a PICAXE to display on a 2x16 or
4x20 LCD the temperature, fuel level (in numerical gallons or, maybe a bar), and status of the system (whether it is running on diesel or veggie oil). I would also like the PICAXE to trigger the Pollack valve (valve that switches tanks) when it reaches a certain temperature.
Seperate from this PICAXE, i will have a master switch toggle switch that will allow me to arm or disarm the system (for short trips).
The fuel sender is a 12v, 240-33ohm unit and the temperature sender is a normal 12v unit used for coolant temperature on many GM vehicles. I'm not sure what the resistance readings are on the temp sensor are but it can be switched out for another unit easy enough.
I have done some programming using Matlab so am familar with program operators but i have zero experience with integrated circuits. As you can imagine i have many questions.
Can this be done with one PICAXE?
Should the LCD be serial enabled?
What other hardware is required?
Thank you in advance for any help, i am looking forward to getting some PICAXE parts here soon and beginning to tinker.
Basically what i am wanting to do is use a PICAXE to display on a 2x16 or
4x20 LCD the temperature, fuel level (in numerical gallons or, maybe a bar), and status of the system (whether it is running on diesel or veggie oil). I would also like the PICAXE to trigger the Pollack valve (valve that switches tanks) when it reaches a certain temperature.
Seperate from this PICAXE, i will have a master switch toggle switch that will allow me to arm or disarm the system (for short trips).
The fuel sender is a 12v, 240-33ohm unit and the temperature sender is a normal 12v unit used for coolant temperature on many GM vehicles. I'm not sure what the resistance readings are on the temp sensor are but it can be switched out for another unit easy enough.
I have done some programming using Matlab so am familar with program operators but i have zero experience with integrated circuits. As you can imagine i have many questions.
Can this be done with one PICAXE?
Should the LCD be serial enabled?
What other hardware is required?
Thank you in advance for any help, i am looking forward to getting some PICAXE parts here soon and beginning to tinker.