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+--- Thread: DS1307 RTC (/showthread.php?tid=2675)
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RE: DS1307 RTC - admin - 04-09-2023
yes, you should set i2c pins first step, then your program code will use that setting as default. here is photo, just do as photo.
RE: DS1307 RTC - Olsen@HuaHin - 04-10-2023
Thank you for the clarification.
It means that I don't need to define SDA & SCL in my sketch, correct??
I see that SS in your explanation below SDA & SCL also use i2c pin 5, is not a conflict as my sketch don't find the RTC module connected.
RE: DS1307 RTC - admin - 04-10-2023
It means that I don't need to define SDA & SCL in my sketch, correct?? yes, just define in "pins_arduino.h".
RE: DS1307 RTC - Olsen@HuaHin - 04-10-2023
What about pin 5 used twice, both the SCL and below in SS in the "pins_arduini.h"
Is that not a conflict?
RE: DS1307 RTC - admin - 04-10-2023
yes, need use two different, i just tell you which two pins for I2C need preset.
RE: DS1307 RTC - Olsen@HuaHin - 04-10-2023
(04-10-2023, 04:29 AM)admin Wrote: yes, need use two different, i just tell you which two pins for I2C need preset.
What pin to use here instead of pin 5
RE: DS1307 RTC - admin - 04-10-2023
A16 board, not use SPI bus, you can delete it or write any other GPIO number.