Paul,

I may have missed part of the conversation but the photos of you moving the -4
around by its tail wheel made me wonder whether you are flying it yet? I recall
you were doing some electrical and fuel pump mods a while back and were getting
pretty close to buttoning everything up. Did everything come together as planned
and have you been logging some performance data? Thanks.

Jack

I am putting my own computer in it so I can tune it with my PC.

Paul Lamar



Paul,

Got it! (Hence the flurry of activity around the 8051 threads, etc...)  Sorry,
the forehead slap and Homer Simpson "DOH!" you just heard is just me atoning for
not paying close enough attention.

Good luck. I'll try to engage brain before pressing "send" button in the future.

Regards,

Jack

Here is an illustration of just how ridiculously easy it is to have an I-pad or other
7 inch tablet on your instrument panel displaying engine parameters. All you need is
a terminal program running in the tablet. There are a least 1/2 dozen terminal
programs for tablets. They may also work with some advanced cell phones.

This is the command in BASCOM, a basic compiler for the 8051 EFI I am building.

PRINT [expression] [,...expression] [,]

Displays the value of expression(s) on the host computer. A comma at the end of
the statement suppresses the CARRIAGE RETURN/LINEFEED. Values are separated
by two spaces. Additional PRINT options are CR, SPC, TAB, USING.

Expressions include lvalues (scalar variables or arrays) and constants.

USING combined with PRINT is a powerful way of formating floating point numbers.
Example 4.667 or 4.67 or 4.7 or just plain 5! Any number of blank spaces in front of
the number as well.

For an example "The mass airflow is: 20.56 pounds per hour."
This is all done in the 8051 and is sent as a string to the terminal program
through the USB.


Paul Lamar
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