letsrelaythat
Member
Hi All,
After filling my car with fuel, the gauge took a good half hour to move. Obviously older cars will do that, but I am looking to upgrade and install a digital fuel meter.
One of my mates had his fuel sender unit swapped, cause his wouldn't read any values near the middle of the gauge, i.e it would read always empty when he had either very low fuel or fuel right in the middle of the range.
Anyhow I borrowed his sender unit, and established that the reading when the tank is full, is just over 1500ohms, and empty is 1760ohms.
I want to make a 5 LED display, using tri-colour LEDs, i.e full tank is all 5 LED's green, just over 2/3 tank is one green LED. Just under 2/3 is all amber LED's, down to just over 1/3. Under 1/3 lights the red LED's up, right down to the last one.
I was thinking maybe a PIC, but I've never used one before and I want to keep costs down. If anyone has a good idea or a schematic/link that would help it would be much appreciated.
Thanks in advance,
Tim.
After filling my car with fuel, the gauge took a good half hour to move. Obviously older cars will do that, but I am looking to upgrade and install a digital fuel meter.
One of my mates had his fuel sender unit swapped, cause his wouldn't read any values near the middle of the gauge, i.e it would read always empty when he had either very low fuel or fuel right in the middle of the range.
Anyhow I borrowed his sender unit, and established that the reading when the tank is full, is just over 1500ohms, and empty is 1760ohms.
I want to make a 5 LED display, using tri-colour LEDs, i.e full tank is all 5 LED's green, just over 2/3 tank is one green LED. Just under 2/3 is all amber LED's, down to just over 1/3. Under 1/3 lights the red LED's up, right down to the last one.
I was thinking maybe a PIC, but I've never used one before and I want to keep costs down. If anyone has a good idea or a schematic/link that would help it would be much appreciated.
Thanks in advance,
Tim.