Design and building an inexpensive Heads UP or Down Display

dive*ski · 7th July 2007, 14:18

I think the electronics and code have come together nicely. I have just got all the components to build a couple of prototypes for testing various configurations of both the electronics and the software.

The next big test will be how to mount it in a water proof manner.

My interest is to add a wrist based readout and HUD to the Inspo Classic without compromising the current systems. With this in mind I m helping out by doing code reviews and building a software test harness to asist Giovanni.

Corallaro · 9th July 2007, 09:59

Hi Guys

i make some photos of green normal LCD and blue reverse LCD(with backlight on)

Giovanni

PS.
dive*ski is making a great great job of correction/optimization of code

RDBradish · 15th July 2007, 08:45

Corallaro,

I love the blue as it seems much clearer.

Am I understanding that using this display removed your voltage drop problem?

Forgive my lurking, but I am not as smart as you guys with regard to this design stuff. It has been alot of fun watching and learning!!

Corallaro · 16th July 2007, 07:18

Hi
with the last scheme the voltage drop problem seem solved...
but i prefer the classic normal green LCD...
less beautiful but more readable in more conditions...
and blue need always backlight on with consumption of a lot current
Giovanni

Corallaro · 24th July 2007, 07:55

Hi Guys

i upload the 0.64d version of code (with dive*ski we are working around the 0.65 version)

a logical error removed, an irregular out from subroutine

a little optimization of code, is less readable but a bit more efficient

in the archive are two files

the "charged version" only for charging it on harware

the "only for simulation version" to use only for simulation, some code in this version is removed and is'nt used on hardware (but if you use a serial LCD)

i'm working around the case, some suggestion how to make two magnetic buttons like hammeread?

Giovanni

Stephane · 31st August 2007, 18:22

Hello Giovanni,

So, how is your design working ? Did you dive with it ?

Corallaro · 1st September 2007, 12:02

hi Stephane..
nice to read you

august is my holiday mounth and in this time i make by myself the case, it was an hard and long work

i don't make underwater test because in Sciacca i don't foud the right cables

the cables on photo are normal electronics cable wit a very little plastic isulation

for hud a need a cable with four wires and for electronic to sensors at least 3 wires but i prefer 4 wires to recharge the battery..

instead i finish to optimize my IDA-71 ant it now works perfectly

(i also add the springs into clippard valves

)

monday i return at work

in Palermo and i think to finish all

and your news?...

Giovanni

carcharodon1957 · 1st September 2007, 15:01

Hello Giovanni,
nice to see final work for you!
I'm impressed about your determination for this work!

best regards
Bernard

Corallaro · 3rd September 2007, 14:35

Hi Bernard

nice to read you..and thanks

but, the work is away to the end...

"the correct cables, the hud case, the sensors case, the test, the optimization of code..........................."

Best regards

Giovanni

Corallaro · 9th October 2008, 15:50

Hi Guys
I totally rewrote the program with mikrobasic 6
now i don't use a picaxe but a normal pic 16f88
instead of the old picaxe code now i use a 10bit adc and more precise mathematics
the gain of ad822 now work perfectly
more detailed info later...
i up new electric scheme and mikrobasic files with compiled .hex

Giovanni

7th July 2007, 14:18	#111 (permalink)
diveski RBW Member Current Rebreather/s:* Inspiration Classic Other Rebreather/s: Inspiration Classic Join Date: Nov 2005 Location: Australia Posts: 32	Re: Design and building an inexpensive Heads UP or Down Display I think the electronics and code have come together nicely. I have just got all the components to build a couple of prototypes for testing various configurations of both the electronics and the software. The next big test will be how to mount it in a water proof manner. My interest is to add a wrist based readout and HUD to the Inspo Classic without compromising the current systems. With this in mind I m helping out by doing code reviews and building a software test harness to asist Giovanni.
(Offline)

15th July 2007, 08:45	#113 (permalink)
RDBradish New Member Current Rebreather/s: Home Build Other Rebreather/s: Home Build Join Date: Aug 2006 Location: Clayton, NC Posts: 2	Re: Design and building an inexpensive Heads UP or Down Display Corallaro, I love the blue as it seems much clearer. Am I understanding that using this display removed your voltage drop problem? Forgive my lurking, but I am not as smart as you guys with regard to this design stuff. It has been alot of fun watching and learning!!
(Offline)

16th July 2007, 07:18	#114 (permalink)
Corallaro IDA-71,IDA-76,NaubosAR90 Current Rebreather/s: Other CCR Other Rebreather/s: Not Bought Yet Other CCR Join Date: Oct 2006 Location: Italia - Sicilia Posts: 248	Re: Design and building an inexpensive Heads UP or Down Display Hi with the last scheme the voltage drop problem seem solved... but i prefer the classic normal green LCD... less beautiful but more readable in more conditions... and blue need always backlight on with consumption of a lot current Giovanni
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31st August 2007, 18:22	#116 (permalink)
Stephane Stéphane Acounis Current Rebreather/s: rEvo Other Rebreather/s: rEvo Join Date: Nov 2005 Location: Nantes - France Posts: 788	Re: Design and building an inexpensive Heads UP or Down Display Hello Giovanni, So, how is your design working ? Did you dive with it ? __________________ Stéphane
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1st September 2007, 15:01	#118 (permalink)
carcharodon1957 RBW Member Current Rebreather/s: Home Build Other Rebreather/s: Home Build Join Date: Oct 2006 Location: switzerland Posts: 106	Re: Design and building an inexpensive Heads UP or Down Display Hello Giovanni, nice to see final work for you! I'm impressed about your determination for this work! best regards Bernard
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3rd September 2007, 14:35	#119 (permalink)
Corallaro IDA-71,IDA-76,NaubosAR90 Current Rebreather/s: Other CCR Other Rebreather/s: Not Bought Yet Other CCR Join Date: Oct 2006 Location: Italia - Sicilia Posts: 248	Re: Design and building an inexpensive Heads UP or Down Display Hi Bernard nice to read you..and thanks but, the work is away to the end... "the correct cables, the hud case, the sensors case, the test, the optimization of code..........................." Best regards Giovanni
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