How add two more PCF8575 to the Ferduino Code [SOLVED]

[Pablo Hernandez]

Hello every people, I have to add two more PCF8575 to the Ferduino code because I modify for my own requirements.

Can anyone help my?

Best regards.

[Fernando Garcia]

Hi!

Follow this example.

I remember that I explained it for you on Portalpez.

Anyway I'll put an example here.

Code: Select all

#include <PCF8575.h> 

byte address_1 = xxxx; // Change this address
byte address_2 = xxxx; // Change this address
byte address_3 = xxxx; // Change this address

PCF8575 PCF8575_1; // First PCF
PCF8575 PCF8575_2; // Second PCF
PCF8575 PCF8575_3; // Third PCF

void setup() 
{ 

  PCF8575_1.begin(address_1);
  PCF8575_2.begin(address_2); 
  PCF8575_3.begin(address_3);

  for(int i = 0; i < 16; i++)   
  {   
    PCF8575_1.pinMode(i, OUTPUT);
    PCF8575_2.pinMode(i, OUTPUT);
    PCF8575_3.pinMode(i, OUTPUT);   
  }   
}

void loop()
{
  for(int i = 0; i < 16; i++)   
  {   
    PCF8575_1.digitalWrite(i, HIGH);
    PCF8575_2.digitalWrite(i, HIGH);
    PCF8575_3.digitalWrite(i, HIGH);
    delay(1000);
  }
  for(int i = 0; i < 16; i++)   
  {   
    PCF8575_1.digitalWrite(i, LOW);
    PCF8575_2.digitalWrite(i, LOW);
    PCF8575_3.digitalWrite(i, LOW);
    delay(1000);
  }   
}


Change the address of each IC connecting A0-A2 to 5V or GND.

Use the example available here to scan addresses.

Best regards.

[Pablo Hernandez]

Hi Fernando, sorry too much, but I don't find it in Portalpez.

Thanks to much.

Best regards.

[Fernando Garcia]

See this.

[Pablo Hernandez]

Hi Fernando, I search it page by page of the post controller of arduino.

Thanks for show it.

Best regards

[Pablo Hernandez]

Hi Fernando, excuse me for ask too much, but it's my two last questions:

Frist: If I put in this way the 36 heaters:

Code: Select all

const int aquecedor1Pin =  // Pino que liga o aquecedor
const int aquecedor2Pin =
const int aquecedor3Pin =
const int aquecedor4Pin =
const int aquecedor5Pin =
const int aquecedor6Pin =

const int aquecedor7Pin =
const int aquecedor8Pin =
const int aquecedor9Pin =
const int aquecedor10Pin =
const int aquecedor11Pin =
const int aquecedor12Pin =

const int aquecedor13Pin =
const int aquecedor14Pin =
const int aquecedor15Pin =
const int aquecedor16Pin =
const int aquecedor17Pin =
const int aquecedor18Pin =

const int aquecedor19Pin =
const int aquecedor20Pin =
const int aquecedor21Pin =
const int aquecedor22Pin =
const int aquecedor23Pin =
const int aquecedor24Pin =

const int aquecedor25Pin =
const int aquecedor26Pin =
const int aquecedor27Pin =
const int aquecedor28Pin =
const int aquecedor29Pin =
const int aquecedor30Pin =

const int aquecedor31Pin =
const int aquecedor32Pin =
const int aquecedor33Pin =
const int aquecedor34Pin =
const int aquecedor35Pin =
const int aquecedor36Pin =

How can I name the pins of for these heaters? for example:

Code: Select all

const int aquecedor1Pin = PCF8575_1.pin1

??

Second: I have other error in the void mainScreen, I put here the code that I modify for you check, if you please .

I don't know, please help me

Best regards

[Fernando Garcia]

This is explained on Portalpez as I told before.

Code: Select all

const int aquecedor1Pin = 0; // First PCF8575
const int aquecedor2Pin = 1;
.
.
.
const int aquecedor17Pin = 0; // Second PCF8575
const int aquecedor18Pin = 1;
.
.
.
And so on.


The support to this version was abandoned.

[Pablo Hernandez]

Hello fernando, sorry too much for ask about a old version, relly, sorry too much, but I have a last question, I promise that I don't ask any more .

I have this error:

Code: Select all

Leds.ino: In function 'void mainScreen(boolean)':
Leds:3: error: a function-definition is not allowed here before '{' token
Tempo_e_data:92: error: expected `}' at end of input


Thanks too much and sorry.

Best regards.

[Fernando Garcia]

This topic is about PCF8575.

This problem is related with PCF8575?

My suggestion for you is: Buy a TFT 400 x 240 and use a version available here.

[Pablo Hernandez]

Hi Fernando, I resolve this problem jet, only need a "}" in a part of teh code, If you want, I put it here to download for you or everyone.

Best regards.