SDA and SCL pins
The IO Pi Plus is a 32 channel MCP23017 GPIO expander for the Raspberry Pi
15/02/2016
Posted by:
aliva
Hello!
I have the board running on the pi now i need to setup a hardware clock to the pi and it use the SDA- SCL pins to work which ones on the IO PLUS are the SDA and SCL? thanks!
I have the board running on the pi now i need to setup a hardware clock to the pi and it use the SDA- SCL pins to work which ones on the IO PLUS are the SDA and SCL? thanks!
15/02/2016
Posted by:
andrew
Is Solution
Hello
The IO Pi Plus does not have separate I2C pins on the board so you will need to use the SDA and SCL pins on the GPIO port. The photo below shows which two pins to use. The IO Pi Plus includes pull-up resistors so you will not need to add those to your hardware clock, but if it already has pull-up resistors built in then it should still work ok.
The IO Pi Plus does not have separate I2C pins on the board so you will need to use the SDA and SCL pins on the GPIO port. The photo below shows which two pins to use. The IO Pi Plus includes pull-up resistors so you will not need to add those to your hardware clock, but if it already has pull-up resistors built in then it should still work ok.
15/02/2016
Posted by:
aliva
OK!
15/02/2016
Posted by:
aliva
thanks! i wil try it.
16/02/2016
Posted by:
aliva
OK! is working like charm thanks!
Also i'm trying to run the C examples but it doesn't compile i got a bunch og
undefined reference to 'IOPI_init'
i'm on a RPI2 any ideas ?
thanks
Also i'm trying to run the C examples but it doesn't compile i got a bunch og
undefined reference to 'IOPI_init'
i'm on a RPI2 any ideas ?
thanks
16/02/2016
Posted by:
aliva
i figurate out!
Thank anyways.
Thank anyways.
Note: documents in Portable Document Format (PDF) require Adobe Acrobat Reader 5.0 or higher to view.
Download Adobe Acrobat Reader or other PDF reading software for your computer or mobile device.