silicon labs 8051 lcd oil pressure display

[adam]

hello everyone I am new at the programming world and I was wondering if anyone could give me some guidance on how I would go about making a digital oil pressure gauge for my truck using a silicon labs 8051, a 16×2 LCD, and my trucks stock oil pressure sending unit. I already know that the stock oil pressure sending unit is a resistor and it changes resistance when the pressure changes. I want to program this in assembler because that is the only language I know anything about at the moment. If anyone has any suggestions please reply.

 

Thanks

 

 

[Anonymous]

this shudnt be much difficult.. u can measure the voltage drop across varying resistance and provide the signal to an ADC. Connect the ADC to ur silicon labs 8051 and analyse the digital ouput to be displayed on LCD.

 

if u have ny problem wid d coding, try the simple adc codes given on the site.

[adam]

o ok thanks. ill try that im having issues with my stock sending unit because it doesent seem to vary the resistance at all its eather infinity or its like 2-3 olms. i think that i am going to have to buy a better sending unit.

 

but thanks for the help ill try that

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