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This Shield Plug on 5v Stopp the Time , Plug on 3v Works Fine
A1,A2,A Plug an ground = Adress 0x20
Forum ‹ Members section ‹ DIY Ferduino controller ‹ PCF 8575
PCF 8575
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Posts: 15
Topics: 6 Solve rating: 0 Joined: Tue May 13, 2014 8:12 am Topics: 6
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http://www.ebay.com/itm/PCF8575-I2C-I-O ... 4859a61600
This Shield Plug on 5v Stopp the Time , Plug on 3v Works Fine
A1,A2,A Plug an ground = Adress 0x20
This Shield Plug on 5v Stopp the Time , Plug on 3v Works Fine
A1,A2,A Plug an ground = Adress 0x20
Post Number:#2
Fri Jul 11, 2014 2:15 pm
Fri Jul 11, 2014 2:15 pm
Posts: 1699
Topics: 38 Images: 301 Solve rating: 233 Joined: Mon Mar 03, 2014 5:59 pm Topics: 38
Age: 39 Location: São Paulo Gender: 
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Hi!
The solution to the problem with the RTC is change the pins to 18 and 19.
The problem is that Henning's library not allow 2 devices on same pins.
Need of 2 pins exclusive to the RTC.
If you put 3V on PCF8575 the output voltage will be 3V probably.
3V can be insufficient to activate some relays.
Best regards.
The solution to the problem with the RTC is change the pins to 18 and 19.
The problem is that Henning's library not allow 2 devices on same pins.
Need of 2 pins exclusive to the RTC.
If you put 3V on PCF8575 the output voltage will be 3V probably.
3V can be insufficient to activate some relays.
Best regards.
Post your doubts on forum because it can help another user too. Just PM me for support if it's absolutely necessary.
2 posts
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