| voodoocc |
Posted - Apr 08 2007 : 12:45:19 PM
I've searched the net and haven't came up with a whole lot. I have found the speedo topic on this forum, but need some more help.
I want to replace the current working dial gauges with digital read outs and or led bar graphs, using the current wiring harnesses for the inputs. Here's what I want in the dash..nothing special. I got all of the tech. information out of a service manual for my car
Speedometer - 3 7 seg displays and 20 LEDs for a graph (1 at every 5 M/H, the car can't go over 100M/H ... darn rev limiters) Selectable M/H or Km/H would be nice as I go to Canada sometimes, but M/H is more important as I live in the US
--60 M/h at 1076 RPMs of Vehicle Speed Sensor, 60Km/H at 637 RPMs of Vehicle Speed Sensor
Tachometer - 2 7 seg displays and 8 LEDs for a graph (1 at every 1000 RPMs, the car redlines around 8000 RPMs)
--100 RPMs at 200pulses/min. of Ignition Control Module
Odometer - 6 7 seg displays, I want it setable to start from what the car has now
Trip meter - 3 7 seg displays, resetable counter
Fuel Gauge - leds or displays(Fuel Tank capacity is 11.9 gal) not picky
--resistance from float is 105-108ohms Empty and 3.5-5ohms Full
Temp. Gauge - leds or displays, not picky
--thermistor ranges from 20Kohms to 0.1Kohms
A/T position Indicator - P, R, N, 4, 3, 2, 1 it's a Honda, so it has a D4 and D3. I know how to display each one on it's own 7 or 13 seg display, but I wanted to be able to display them all on a single 13 seg
I want to do all of this using ICs and discreet components to keep cost down. I have schooling in Electronics, so wiring and soldering are not problems for me |
