PCF8575 Sparkfun

[Marcelo Machado]

I need to do this changes on the code like explainded on this topic to make pcf8575 work ok?

PCF8575 problem code

PCF 8575

but the links of GitHub didn´t open.


i´m on the right way?

[Fernando Garcia]

Last time: DO NOT use all letters in uppercase unless it's an abbreviation!

In latest version this changes are not needed.

Only uncomment this line:

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#define USE_PCF8575


Then connect the relays according to this definition:

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const byte ozonizadorPin = 0;       // P0       // Pino que liga o ozonizador
const byte reatorPin = 1;           // P1       // Pino que liga o CO2 do reator.
const byte bomba1Pin = 2;           // P2       // Bomba que tira água da quarentena.
const byte bomba2Pin = 3;           // P3       // Bomba que tira água do sump.
const byte bomba3Pin = 4;           // P4       // Bomba que coloca água no sump.
const byte temporizador1 = 5;       // P5       // Pino que liga o timer 1.
const byte temporizador2 = 6;       // P6       // Pino que liga o timer 2.
const byte temporizador3 = 7;       // P7       // Pino que liga o timer 3.
const byte temporizador4 = 8;       // P8       // Pino que liga o timer 4.
const byte temporizador5 = 9;       // P9       // Pino que liga o timer 5.
const byte solenoide1Pin = 10;      // P10      // Liga a reposicao de água doce.
const byte alimentadorPin = 11;     // P11      // Pino que controla o alimentador automático.
const byte skimmerPin = 12; // P12      // Pino que controla o skimmer


Before you SHOULD test the circuit using the code for test available on forum.

[Marcelo Machado]

Fernando Garcia » Yesterday 4:24 pm wrote:

Last time: DO NOT use all letters in uppercase unless it's an abbreviation!

my english is not so good, i dont´t understand very well, Not to use Uppercase in the title of the fórum?
I just use because is the name of the componente PCF8575
I should have use pcf8575??

-------------------------------- Last edited Fri Jan 13, 2017 2:59 am --------------------------------

i tested.. its ok.. shows.. i´m live on serial monitor
make the change of the code using the the new conection pins

error msg

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Ferduino_Portuguese:115: error: redefinition of 'const byte ozonizadorPin'
Ferduino_Portuguese:93: error: 'const byte ozonizadorPin' previously defined here
Ferduino_Portuguese:116: error: redefinition of 'const byte reatorPin'
Ferduino_Portuguese:94: error: 'const byte reatorPin' previously defined here
Ferduino_Portuguese:117: error: conflicting declaration 'const byte bomba1Pin'
Ferduino_Portuguese:104: error: 'bomba1Pin' has a previous declaration as 'const int bomba1Pin'
Ferduino_Portuguese:118: error: conflicting declaration 'const byte bomba2Pin'
Ferduino_Portuguese:105: error: 'bomba2Pin' has a previous declaration as 'const int bomba2Pin'
Ferduino_Portuguese:119: error: conflicting declaration 'const byte bomba3Pin'
Ferduino_Portuguese:106: error: 'bomba3Pin' has a previous declaration as 'const int bomba3Pin'

i´m not using ferduino web control code... i tryed.. but hava a lot of erros msg, so i,m using the old one


the new code did not work
all pins still powered

[Fernando Garcia]

Hi!

In this topic the title was: PCF8575 SPARKFUN.

In other topic the title was: : DISABLE FAN PIN ALWAYS ON

Use all letters in uppercase only if it's an abbreviation

Use latest version of Ferduino code, download the IDE 1.6.10 and follow this tutorial: viewtopic.php?f=8&t=34

Best regards.

[Marcelo Machado]

Ok .. I wil download...
problably another questions.
tks

[Fernando Garcia]

Hi!

Don't forget that to use a PCF8575 is needed connect the RTC on pins 18 and 19.

You should move pins from 20 and 21 to 18 and 19 then make a bridge like this.

Also uncomment this line:

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#define USE_PINS_18_AND_19_FOR_RTC

Best regards.