after all ... PBP is not so bad ...

[Mike, K8LH]

Thank you Alain,

Would this work?

Regards, Mike

while 1=1
    adcin 0, result                      '
    
    if result < 823 then                 ' if < 4.020 volts then
        LCDOUT $FE,2," Tribord "         '
    else                                 ' else
        LCDOUT $FE,2,"  Babord "         '
    endif                                '

    angle = 13 * abs(result - 823) / 100 '

    LCDOUT $FE, $C0, dec3 angle          '

    PAUSE 100                            '
wend

[Acetronics2]

Would this work?

Hi, Mike

Of course it can be convenient ...

just for the fun ... the initial query was :

If tension < 4.02 v , angle=(-77/2.8952)*tension+(100.5/0.94) ...

so, we were really far from your " simplified " formula ( that fits perfectly well, with its < .5 degree error !!! )

... some comments about our new students ???? ...


Back to our Compilers ... MkBasic 7.2 now shows ... 1001 Words , MkBasicPro ... 601 Words !!! ( using WORDS ); to answer Ioannis, we loose here 1/2 degree in the result ... so, depending on the resolution required, ( 1 or .1 degree), program size changes a lot with MkE compilers !!!

PbP " only " 470 Words ... always is the winner.

Alain

[Art]

It would be nice to see a comparison of some programs that are more simple such as flashing an LED
with an IF/THEN statement,
or printing HELLO WORLD to an LCD.

Then disassembling the hex file to asm and looking at the results.

[Acetronics2]

It would be nice to see a comparison of some programs that are more simple such as flashing an LED
with an IF/THEN statement,
or printing HELLO WORLD to an LCD.

Then disassembling the hex file to asm and looking at the results.

Hi, Art

Would be a huge work to test and compare the most used functions of a selection of compilers, don't you think ???

...

I think the analyst's work and programmer's way of coding are far away the first reasons for huge or compact programs ...
we just got the proof here ... some lines ago ...

add to that, compilers always improve ... ( MkBasic 7.2 to MkBasicPro show a neat difference, CCS did so some months ago, PBP 2.60 enhanced some functions to save Program Words too ... ( WRITE/READ i.e ) ...
so, the time you write it, it's true ... but few months later, It's changed !!!

Alain

[Mike, K8LH]

... MkBasic 7.2 now shows ... 1001 Words , MkBasicPro ... 601 Words !!! ( using WORDS ); to answer Ioannis, we loose here 1/2 degree in the result ... so, depending on the resolution required, ( 1 or .1 degree), program size changes a lot with MkE compilers !!!

PbP " only " 470 Words ... always is the winner.

Bravo Alain!!!

[Mike, K8LH]

après quelques tortillages de cerveau ...

on se rend compte que " angle " passe de 26 tribord à 26 babord pour la tension d'entrée qui passe de 3.02v à 5.02v , ce, de façon linéaire ...

si l'on y regarde de plus près ... et ,compte tenu de l'affichage en degrés, sans décimales ...

ça nous fait tout simplement ...

26 degrés de variation pour 200 points de variation du résultat de conversion ...

d'où ... la fabuleuse équation devient tout simplement :

angle = 13 * ABS ( result-823 ) / 100 ...

Qui a éclaté de rire ???

Hi Alain,

Was it too late for the original student to use this new formula considering the time constraints you mentioned?

Regards, Mike

[Acetronics2]

Hi Alain,

Was it too late for the original student to use this new formula considering the time constraints you mentioned?

Regards, Mike

Halas yes, Mike ... He PMed me he had no time to change his report and explain how to simplify the formula, once having seen the practical result, so he had to use the whole original formula for programming ...

despite I sent him the reduced program.

no " magics " allowed in such reports ...

he's just authorized to mention the soft can be modified and reduced , while presenting his work at the blackboard ... and next year students will make the mod ...

Alain

But ... being honest ... you've cheated a bit !!!

[Mike, K8LH]

But ... being honest ... you've cheated a bit !!!

How so? If you mean that I took advantage of all your hard work and careful analysis when I simplified the formula then you are correct (LOL).

2) as the input swings from 3.02v to 5.02 v ... the output value is ... 26 starboard to 26 port ...

Your summary made it easy to recognize the ralationship of 52° spread across 100 (8-bit) or 400 (10-bit) ADC counts. You really should have spotted this yourself when you wrote it (LOL).

Anyway, I'm sorry the student could not take advantage of the simplified formula.

Regards, Mike