ECUs and Tuning Discuss Engine Management, Tuning, & Programming

Cheap display for LC-1?

Thread Tools
 
Search this Thread
 
Old 05-29-2015, 09:47 PM
  #1  
Elite Member
Thread Starter
iTrader: (1)
 
Full_Tilt_Boogie's Avatar
 
Join Date: May 2009
Location: Jacksonville, FL
Posts: 5,155
Total Cats: 406
Default Cheap display for LC-1?

Does anybody know of a way to cheaply display AFR from an LC-1/2 serial output?

Yes, I know of the DB gauge, but it isnt cheap and it doesnt really need to be in a round gauge package. I was hoping to build/buy something that would just have a couple 7 segments which could be integrated into my cluster easily.

Innovate was nice enough to supply us with the serial protocol, unfortunately Im a **** programmer. The only way I could think to do it would be to use the LC-1 analog output which is kinda of the ***-backwards approach.
Full_Tilt_Boogie is offline  
Old 05-30-2015, 01:27 AM
  #2  
Elite Member
 
codrus's Avatar
 
Join Date: Mar 2007
Location: Santa Clara, CA
Posts: 5,167
Total Cats: 856
Default

An Arduino and a cheap 2.25" voltmeter gauge is probably the cheapest approach. Requires writing a teeny bit of code though.

--Ian
codrus is offline  
Old 05-30-2015, 09:10 AM
  #3  
Elite Member
Thread Starter
iTrader: (1)
 
Full_Tilt_Boogie's Avatar
 
Join Date: May 2009
Location: Jacksonville, FL
Posts: 5,155
Total Cats: 406
Default

I was getting my google-fu on and stumbled upon an obvious solution. The LC-1's analog output can be programmed to whatever scale you want it to be. So simply setting 1v = 10.0:1 and 2v = 20.0:1 means that you can use a little millivolt voltmeter as a gauge. The only complication is the decimal being in the wrong place.
Full_Tilt_Boogie is offline  
Old 06-03-2015, 06:08 PM
  #4  
Junior Member
iTrader: (4)
 
irodd's Avatar
 
Join Date: Apr 2014
Location: Toronto, Canada
Posts: 173
Total Cats: 16
Default

Originally Posted by Full_Tilt_Boogie
I was getting my google-fu on and stumbled upon an obvious solution. The LC-1's analog output can be programmed to whatever scale you want it to be. So simply setting 1v = 10.0:1 and 2v = 20.0:1 means that you can use a little millivolt voltmeter as a gauge. The only complication is the decimal being in the wrong place.
I am using this one with my LC-1 - decimal point is adjustable via jumpers
and there is calibration potentiometer, you can calibrate voltmeter with reference power supply.
irodd is offline  
Old 06-11-2015, 10:53 AM
  #5  
Elite Member
Thread Starter
iTrader: (1)
 
Full_Tilt_Boogie's Avatar
 
Join Date: May 2009
Location: Jacksonville, FL
Posts: 5,155
Total Cats: 406
Default

Originally Posted by irodd
I am using this one with my LC-1 - decimal point is adjustable via jumpers
and there is calibration potentiometer, you can calibrate voltmeter with reference power supply.
Props, brother.

That is fantastic. Thank you!
Full_Tilt_Boogie is offline  
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Full_Tilt_Boogie
Build Threads
84
04-12-2021 04:21 PM
StratoBlue1109
Miata parts for sale/trade
21
09-30-2018 01:09 PM
Rick02R
WTB
3
01-03-2016 07:18 PM
interestedofold
Suspension, Brakes, Drivetrain
5
09-29-2015 01:42 PM
zephyrusaurai
Meet and Greet
2
09-28-2015 10:59 PM



Quick Reply: Cheap display for LC-1?



All times are GMT -4. The time now is 05:05 PM.