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#1
General Discussion Board. / Re: LOL: GA plane landing gene...
Last post by jackpilot - March 19, 2024, 06:27:09 AM
AI can "propel" your best friend. :P

#2
General Discussion Board. / LOL: GA plane landing generate...
Last post by n4208t - March 18, 2024, 04:50:41 AM
Just a bit of fun.  Tried out the AI generator on Freepik.  Inputted general aviation airplane landing and got these immages.

Interesting how this "intelligence" "thinks" and where it gets its ideas from.  Never seen a 4 wheeled GA aircraft or a tailwheel dragger without the tailwheel.

:-) :) 
#3
General Discussion Board. / Re: What have you done for you...
Last post by n4208t - February 09, 2024, 03:39:07 AM
Beautiful work.  Congrats.
#4
General Discussion Board. / Re: What have you done for you...
Last post by _alioth_ - February 08, 2024, 01:44:23 PM
I have built and improved version of my Insight G4 engine monitor. especially designed for the A2A Piper Comanche. But great for advanded sim aircrafts with per cylinder temps. (A2A, Airfoillabs..)
#5
Builders Discussions / Re: PCF8574 I/O Extender Board...
Last post by ame - February 06, 2024, 01:02:58 PM
Excellent. Glad you got it going.
#6
Builders Discussions / Re: PCF8574 I/O Extender Board...
Last post by iwik - February 05, 2024, 11:10:06 PM
Hi Andrew,
Thanks for replying.I tried the serial thing but got nothing.I expected to see what you were saying.I could follow that bit of the code.
Anyway i found by hacking out any code that refered to I2C_IF-USED and placed Wire.begin(); just after Pinmode statement my switches worked fine.
However i have moved on from using the arduino skectch.The developer has written the firmware in VScode and incorporated the switches and so no further help is required.
Thanks and i have to say ive learnt more about Arduino code as result.Along with you explanation.
Les
#7
Builders Discussions / Re: PCF8574 I/O Extender Board...
Last post by ame - February 02, 2024, 04:04:37 PM
Ok. This is incredibly badly-written code, but I suppose it's all we've got.

Firstly, it declares three PCF I/O extenders, but only uses two.

The code for the PCF extenders seems to read both of them (the two that are actually used), checks the value of some of the input bits (presumably switches), then writes different bit values back to the PCF extenders according to the state of the input bits. Presumably that is to drive the LEDs.

If it was working, but now it isn't, even with the original firmware, then something has changed.

Now is your chance to become an Arduino expert. Don't worry, just start slow and try various things.

The first thing to try is serial debugging.

The USB cable that connects the Arduino to the PC acts as a serial link, so if you have a serial terminal on the PC you can see what information the Arduino is sending. On the Arduino side, if you use Serial.print("Something") then "Something" will appear on the PC terminal. What this means is that you can send information from inside the program about what is going on.

If you are using the Arduino IDE then there is a button at the top right (looks like a magnifying glass). It opens a serial terminal so you can see what the Arduino is sending back. The only thing you need to do is set the baud rate to match the value set in the Arduino code, which in this case is 115200.

If you do this and the Arduino is connected and running, you should see a couple of messages. You can look at the code to see where they come from.

First, it should say "Start". Next, the code checks for the PCF chips. You shouldn't get any error messages except for "pcf_2 could not initialize..." and "pcf_2 not connected", because you don't have a third chip.

After that you will probably see a bunch of debug messages that change when you change various switches.

If you can do that then the next step is to add some code to tell you what the PCF chips are doing, which I can help you with.

Do you have a schematic or wiring diagram for what is connected to the PCF chips and how they are connected?

 
#8
General Discussion Board. / Re: Correct degree of forward ...
Last post by Ed - January 24, 2024, 01:53:16 AM
Thanks Joe,

I've just received confirmation from MickC in the Prosim Forum that the lean is 6.9 +/- 0.8 degrees.
#9
General Discussion Board. / Re: Correct degree of forward ...
Last post by Joe Lavery - January 23, 2024, 05:04:37 PM
Hi ED,

I don't know how accurate this is but it was taken from a Precision Flight yoke advert.

Cheers
Joe.
#10
General Discussion Board. / Correct degree of forward lean...
Last post by Ed - January 23, 2024, 01:44:07 PM
Hello All,

I wonder if someone can tell me the proper degree of forward lean (neutral elevator) for the 738. I'm in the process of installing oem yokes and I'm hearing everything from 7 to 10 degrees. Anyone have access to a maintenance manual by chance?
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